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CN106944078A - A kind of preparation method for catalyst for hydrogen production from methane vapor reforming - Google Patents

A kind of preparation method for catalyst for hydrogen production from methane vapor reforming Download PDF

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CN106944078A
CN106944078A CN201610003103.2A CN201610003103A CN106944078A CN 106944078 A CN106944078 A CN 106944078A CN 201610003103 A CN201610003103 A CN 201610003103A CN 106944078 A CN106944078 A CN 106944078A
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catalyst
solution
accordance
hydrogen
auxiliary agent
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CN106944078B (en
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张舒冬
孙晓丹
刘继华
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China Petroleum and Chemical Corp
Sinopec Fushun Research Institute of Petroleum and Petrochemicals
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China Petroleum and Chemical Corp
Sinopec Fushun Research Institute of Petroleum and Petrochemicals
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16Reducing
    • B01J37/18Reducing with gases containing free hydrogen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85Chromium, molybdenum or tungsten
    • B01J23/88Molybdenum
    • B01J23/883Molybdenum and nickel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85Chromium, molybdenum or tungsten
    • B01J23/88Molybdenum
    • B01J23/887Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8871Rare earth metals or actinides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85Chromium, molybdenum or tungsten
    • B01J23/88Molybdenum
    • B01J23/887Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8872Alkali or alkaline earth metals

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

The present invention relates to a kind of preparation method for catalyst for hydrogen production from methane vapor reforming, the catalyst includes active component, auxiliary agent and carrier;The preparation method of the catalyst comprises the following steps:Catalyst precarsor A is prepared first, then reduction treatment is carried out to catalyst precarsor A, it is well mixed auxiliary agent presoma is soluble in water with furfural aqueous solution, then it is added to together with catalyst precarsor A in autoclave, reacted after adding solution C, filtering gained solid sample obtains catalyst again after drying, calcination process after obtained solidliquid mixture processing separation.This method takes full advantage of waste residue oil hydrogenating treatment catalyst, has saved cost, and the catalyst reaction activity of preparation is high, both reduces metal consumption, the selectivity of product is improved again.

Description

A kind of preparation method for catalyst for hydrogen production from methane vapor reforming
Technical field
The present invention relates to a kind of preparation method for catalyst for hydrogen production from methane vapor reforming, more particularly, to a kind of loading type nickel-based catalyst preparation method for hydrogen production from methane vapor reforming.
Background technology
Methane is hydrogen-carbon ratio highest hydrocarbon molecules in nature, and its abundance can be used as excellent hydrogen feedstock.At present, the hydrogen producing technology using methane as raw material mainly has hydrogen production from methane vapor reforming, partial oxidation of methane hydrogen, self-heating reforming hydrogen manufacturing etc..This several technology typically all obtains synthesis gas first(H2With CO gaseous mixture), then pass through transformationreation(WGS)And pressure-variable adsorption(PSA)Obtain hydrogen.Wherein hydrogen production from methane vapor reforming can obtain hydrogen-carbon ratio(H2/CO)For 3 synthesis gas, therefore it is more suitable for for hydrogen manufacturing.Hydrogen production from methane vapor reforming is a kind of ripe industrialization hydrogen producing technology, and process is highly endothermic, generally in high temperature(800~1100 DEG C)Under the conditions of carry out, using high steam/hydrocarbons ratio operate(VH2O/VCH4>3), to prevent catalyst carbon deposit.At present, the research of hydrogen production from methane vapor reforming is laid particular emphasis under the conditions of low steam carbon ratio high activity and the catalyst preparation of high stability, to seek the investment and the technical scheme of production cost that reduce natural gas steam reforming process.
Conventional SMR catalyst be loaded catalyst, carrier be aluminum oxide, zirconium oxide, cerium oxide, magnesia, lanthana, niobium oxide, zeolite, perovskite, silica clay, yittrium oxide, cobalt oxide, iron oxide and its mixture or one of.In group VIII non-radioactive metal can as SMR catalyst active metal.Research shows, by group VIII noble metals Ru, Rh, Pd even load when on suitable carrier, all with higher reactivity and anti-carbon performance, but noble metal shortcoming be that it is expensive;In group VIII base metal, Raney nickel has higher reactivity, typically using Ni/Al2O3Catalyst, reaction condition is 1.5 ~ 3MPa, 850 ~ 900 DEG C, the H of generation2The ratio between/CO is about 3.
Although existing catalyst can obtain preferable hydrogen production from methane vapor reforming reactivity worth, still suffer from that cost is higher, catalyst easy carbon distribution the problems such as.Particularly work as reactant(Methane and water)Molecule during mass transfer, due to the difference of diffusion velocity, causes two kinds of reactant molecule ratios gradient radially occur in catalyst granules, particle inside steam/hydrocarbons ratio, which is much smaller than inside stoichiometry, therefore catalyst granules, is more easy to carbon distribution in catalyst granules.
The content of the invention
To overcome weak point of the prior art, the invention provides a kind of preparation method for catalyst for hydrogen production from methane vapor reforming, the characteristics of catalyst prepared by this method has with low cost, metal component utilization rate high and is selective good.
The invention provides a kind of preparation method for catalyst for hydrogen production from methane vapor reforming, the catalyst includes active component, auxiliary agent and carrier, active component is Ni, and auxiliary agent is the one or more in Mg, Ca, Mo, Co, Zr, La or Ce, and carrier is aluminum oxide;On the basis of each element quality accounts for the percentage of catalyst quality in catalyst, the content of active component is 15wt%~25wt%, and the content of auxiliary agent is 8wt%~15wt%, and surplus is carrier;The preparation method of the catalyst comprises the following steps:
(1)Waste residue oil hydrogenating treatment catalyst is extracted to the oil removed on catalyst surface, after 80~150 DEG C are dried, high-temperature roasting processing is carried out, obtains catalyst precarsor A, wherein, sintering temperature is 300 ~ 600 DEG C, and roasting time is 2~6h;
(2)Using reducing atmosphere to step(1)Obtained catalyst precarsor A carries out reduction treatment;
(3)Auxiliary agent presoma is soluble in water, solution B is obtained, and be well mixed with furfural aqueous solution, then with step(2)Obtained catalyst precarsor A is added in autoclave together;
(4)High molecular weight water soluble polymer, active component presoma is soluble in water, obtain solution C;Solution C is added to step(3)In described autoclave, replaced 2~5 times with hydrogen after sealing, then adjust Hydrogen Vapor Pressure to 2~4MPa, 1~3h is reacted at 100~200 DEG C;
(5)Treat step(4)Obtained solidliquid mixture is down to 20~30 DEG C, adds absolute ethyl alcohol or aqueous citric acid solution, places 1~2h, then filters, gained solid sample after drying, calcination process, obtains catalyst again.
The present invention is used in the preparation method of catalyst for hydrogen production from methane vapor reforming, step(1)Described in waste residue oil hydrogenating treatment catalyst using aluminum oxide as carrier, active metal component contains Mo and Co, is not reached former reaction to require, or due to level with reason without the residual oil hydrocatalyst that is used in the fixed bed or ebullated bed of complete deactivation;Described dead catalyst is due to being hydrotreating catalyst used in hydrogenation process, so in hydrogenation process, typically having part metals Ni and V deposition;Mo content is 5wt% ~ 10wt% in described catalyst precarsor A, and Co content is 1wt% ~ 3wt%, and Ni content is 1wt% ~ 5wt%.Step(1)Described in extracting solvent can be petroleum ether, toluene in one or two.
The present invention is used in the preparation method of catalyst for hydrogen production from methane vapor reforming, step(2)Described in reducing atmosphere be the mixed gas of hydrogen or hydrogen and nitrogen, hydrogen volume percentage composition is 10%~95% in the mixed gas.Specific reduction treatment process is as follows:Catalyst precarsor is warming up to 300~600 DEG C under nitrogen atmosphere, the mixed gas of hydrogen or hydrogen and nitrogen is then passed to, in 0.1~0.5MPa(Absolute pressure)Handle after 4~8h, room temperature is down in a nitrogen atmosphere.
The present invention is used in the preparation method of catalyst for hydrogen production from methane vapor reforming, step(3)Described in auxiliary agent presoma be one or more in magnesium nitrate, calcium nitrate, zirconium nitrate, cerous nitrate, lanthanum nitrate, preferably magnesium nitrate;In the solution B, auxiliary agent is in terms of element, and the mass fraction in solution B is 3%~12%;The mass fraction of furfural is 30%~50% in the furfural aqueous solution;Step(3)Described in furfural aqueous solution and the mass ratio of solution B be 3 ~ 5, the gross mass and step of the solution B and furfural aqueous solution(2)Obtained reduction rear catalyst precursor A mass ratio is 3~6.
The present invention is used in the preparation method of catalyst for hydrogen production from methane vapor reforming, step(4)Described in high molecular weight water soluble polymer be polyethylene glycol(PEG), polyvinylpyrrolidone(PVP), polyvinyl alcohol(PVA)In one or more;The active component presoma is the one or more in nickel nitrate, nickel acetate, nickel sulfate, nickel chloride, preferably nickel nitrate;In the solution C, in active component presoma it is nickeliferous mass fraction in solution C is counted as 1%~3% using element, mass fraction of the high molecular weight water soluble polymer in solution C is 3~6 times of Ni element mass fractions.
The present invention is used in the preparation method of catalyst for hydrogen production from methane vapor reforming, step(5)Described in add the quality of absolute ethyl alcohol or citric acid and the mass ratio of high molecular weight water soluble polymer be 2 ~ 4;The mass fraction of the aqueous citric acid solution is 10%~20%;The drying temperature is 70~150 DEG C, and preferably 80~120 DEG C, drying time is 2~12h, preferably 4~8h;The sintering temperature is 350~650 DEG C, and preferably 400~600 DEG C, roasting time is 2~12h, preferably 4~8h.
Catalyst prepared by the inventive method can apply to hydrogen production from methane vapor reforming reaction.Catalyst using before in a hydrogen atmosphere, 700~800 DEG C of 2~5h of prereduction.Catalyst prepared by the inventive method reacts applied to hydrogen production from methane vapor reforming, and preferable process conditions are:The composition H of unstripped gas2O/CH4Mol ratio is 1~4, can contain Ar, N in unstripped gas2Or the dilution such as He property gas, 1000~3000h of unstripped gas air speed-1, reaction pressure is 0.2~3Mpa, and reaction temperature is 600~800 DEG C.
Compared with prior art, the catalyst reacted for hydrogen production from methane vapor reforming that a kind of active metal outer layer is distributed can be obtained by preparation method of the present invention.In the present invention, furfural aqueous phase hydrogenation reaction is carried out using waste residue oil hydrogenating treatment catalyst.Add active metal predecessor and high molecular weight water soluble polymer simultaneously in the system of furfural hydrogenation, on the one hand hinder active metal to the diffusion inside catalyst granules using furfural hydrogenation product;On the other hand, using the coordination between active metal predecessor and high molecular weight water soluble polymer, concentration difference of the active metallic ion inside and outside catalyst granules in reduction solution slows down active metal to the diffusion velocity inside catalyst granules.This method takes full advantage of waste residue oil hydrogenating treatment catalyst, has saved cost, and the catalyst reaction activity of preparation is high, both reduces metal consumption, the selectivity of product is improved again.Catalyst precarsor processing simultaneously is completed with the step of catalyst preparation one, and preparation technology is simple, is conducive to industrial amplification.
Embodiment
The technology contents and effect of the present invention are further illustrated with reference to embodiment, but are not so limited the present invention.
Appreciation condition:With hydrogen reducing 3 hours at 700 DEG C before catalyst reaction of the present invention.Reacted in continuous sample introduction fixed-bed quartz reactor, 750 DEG C of reaction temperature, unstripped gas composition H2O/CH4/N2=6.75/2.25/1(Mol ratio), air speed 2000h-1, gas-chromatography on-line analysis is used after the condensed water removal of product.Reaction starts sampling analysis after 1 ~ 3 hour, and evaluation result is shown in Table 1.Average activity of the reaction result for catalyst after 750 DEG C of 100h that work in table 1.
The metal element content in catalyst is determined using XRF analysis technology.Using the distribution situation of active component on a catalyst in the catalyst prepared by the scanning electron microscope analysis present invention.The scanning electron microscope analysis of catalyst activity component nickel the results are shown in Table 2 obtained by the embodiment of the present invention and comparative example.
Embodiment 1
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, obtain catalyst precarsor A, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element catalyst precarsor A weight 1.8wt%, Ni are accounted in terms of element accounts for catalyst precarsor A weight 2.3wt% in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;19.02g magnesium nitrates are dissolved in 30mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 40% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;24g polyethylene glycol, 25.47g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, add 70g absolute ethyl alcohols, 1.5h is placed, is then filtered, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 18.4%Ni, 5.9%Mg, 3.8%Mo, 0.9%Co catalyst, is designated as C-1.
Embodiment 2
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, obtain catalyst precarsor A, wherein Mo is accounted for catalyst precarsor A weight 5.2wt%, Co in terms of element catalyst precarsor A weight 1.2wt%, Ni are accounted in terms of element accounts for catalyst precarsor A weight 1.5wt% in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;10.26g magnesium nitrates are dissolved in 25mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 40% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;18g polyethylene glycol, 19.32g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, add 53g absolute ethyl alcohols, 1.5h is placed, is then filtered, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 12.7%Ni, 2.9%Mg, 3.3%Mo, 0.6%Co catalyst, is designated as C-2.
Embodiment 3
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, obtain catalyst precarsor A, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element catalyst precarsor A weight 1.8wt%, Ni are accounted in terms of element accounts for catalyst precarsor A weight 2.3wt% in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;27.99g magnesium nitrates are dissolved in 40mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 40% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;30g polyethylene glycol, 32.41g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, add 90g absolute ethyl alcohols, 1.5h is placed, is then filtered, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 23.2%Ni, 8.8%Mg, 3.9%Mo, 1.0%Co catalyst, is designated as C-3.
Embodiment 4
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, obtain catalyst precarsor A, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element catalyst precarsor A weight 1.8wt%, Ni are accounted in terms of element accounts for catalyst precarsor A weight 2.3wt% in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;10.51g calcium nitrate is dissolved in 20mL deionized waters, solution B is obtained, and is well mixed with the mass fraction of its 3 times of quality for 30% furfural aqueous solution, is then added to together with the catalyst precarsor A after reduction activation in autoclave;24g polyethylene glycol, 25.47g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, add 70g absolute ethyl alcohols, 1.5h is placed, is then filtered, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 17.9%Ni, 5.3%Ca, 3.9%Mo, 1.1%Co catalyst, is designated as C-4.
Embodiment 5
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, obtain catalyst precarsor A, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element catalyst precarsor A weight 1.8wt%, Ni are accounted in terms of element accounts for catalyst precarsor A weight 2.3wt% in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;8.79g cobalt nitrates are dissolved in 20mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 5 times of quality for 50% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;24g polyvinyl alcohol, 25.47g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 25 DEG C in above-mentioned autoclave, add 70g absolute ethyl alcohols, 1.5h is placed, is then filtered, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 18.1%Ni, 5.6%Co, 3.9%Mo, 0.9%Co catalyst, is designated as C-5.
Embodiment 6
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil on catalyst surface is removed by extracting, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, obtain catalyst precarsor A, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element catalyst precarsor A weight 1.8wt%, Ni are accounted in terms of element accounts for catalyst precarsor A weight 2.3wt% in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;8.38g zirconium nitrates are dissolved in 30mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 50% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;24g polyethylene glycol, 25.47g nickel nitrates are dissolved in 200mL deionized waters, solution C is obtained;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 20 DEG C in above-mentioned autoclave, add the aqueous citric acid solution that 467g mass fractions are 15%, 1.5h is placed, is then filtered, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 18.2%Ni, 5.2%Zr, 4.1%Mo, 1.1%Co catalyst, is designated as C-6.
Embodiment 7
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, obtain catalyst precarsor A, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element catalyst precarsor A weight 1.8wt%, Ni are accounted in terms of element accounts for catalyst precarsor A weight 2.3wt% in terms of element;20g catalyst precarsors A is activated in the mixed atmosphere of hydrogen, hydrogen volume content is 80% in mixed gas, reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;5.55g lanthanum nitrates are dissolved in 16mL deionized waters, solution B is obtained, and are well mixed with the mass fraction of its 4 times of quality for 40% furfural aqueous solution, are then added to together with the catalyst precarsor A after reduction activation in autoclave;By 24g polyvinylpyrrolidones(k30), 25.47g nickel nitrates be dissolved in 200mL deionized waters, obtain solution C;Solution C is also added in autoclave, replaced 3 times with hydrogen after sealing, Hydrogen Vapor Pressure is then adjusted to 3MPa, 2h is reacted at 150 DEG C;Treat that reacted solidliquid mixture is down to 30 DEG C in above-mentioned autoclave, add the aqueous citric acid solution that 466g mass fractions are 15%, 1.5h is placed, is then filtered, gained solid sample is put into baking oven in dry 6h at 110 DEG C, 6h is calcined at 700 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 18.7%Ni, 6.1%La, 4.1%Mo, 1.1%Co catalyst, is designated as C-7.
Comparative example
From the useless hydrotreating catalyst of fixed bed residual hydrogenation commercial plant(MoCo/Al2O3)The oil removed on catalyst surface is extracted by petroleum ether, in 110 DEG C of dry 8 h, gained catalyst is calcined 4h at 450 DEG C, obtain catalyst precarsor A, wherein Mo is accounted for catalyst precarsor A weight 6.1wt%, Co in terms of element catalyst precarsor A weight 1.8wt%, Ni are accounted in terms of element accounts for catalyst precarsor A weight 2.3wt% in terms of element;20g catalyst precarsors A is added in the aqueous solution containing 19.02g magnesium nitrates and 25.473g nickel nitrates, it is evaporated in 80 DEG C of stirring to solution, it is put into baking oven in dry 12h at 110 DEG C, 4h is calcined at 400 DEG C, it is made and quality is counted using element accounts for catalyst percentage composition as 19.1%Ni, 6.2%Mg, 4.2%Mo, 1.1%Co catalyst, is designated as D-1.
The reactivity worth of the catalyst of table 1
The catalyst activity component Ni content distributions of table 2(wt%)

Claims (16)

1. a kind of preparation method for catalyst for hydrogen production from methane vapor reforming, the catalyst includes active component, auxiliary agent and carrier, active component is Ni, and auxiliary agent is the one or more in Mg, Ca, Mo, Co, Zr, La or Ce, and carrier is aluminum oxide;On the basis of each element quality accounts for the percentage of catalyst quality in catalyst, the content of active component is 15wt%~25wt%, and the content of auxiliary agent is 8wt%~15wt%, and surplus is carrier;The preparation method of the catalyst comprises the following steps:
(1)Waste residue oil hydrogenating treatment catalyst is extracted to the oil removed on catalyst surface, after 80~150 DEG C are dried, high-temperature roasting processing is carried out, obtains catalyst precarsor A, wherein, sintering temperature is 300 ~ 600 DEG C, and roasting time is 2~6h;
(2)Using reducing atmosphere to step(1)Obtained catalyst precarsor A carries out reduction treatment;
(3)Auxiliary agent presoma is soluble in water, solution B is obtained, and be well mixed with furfural aqueous solution, then with step(2)Obtained catalyst precarsor A is added in autoclave together;
(4)High molecular weight water soluble polymer, active component presoma is soluble in water, obtain solution C;Solution C is added to step(3)In described autoclave, replaced 2~5 times with hydrogen after sealing, then adjust Hydrogen Vapor Pressure to 2~4MPa, 1~3h is reacted at 100~200 DEG C;
(5)Treat step(4)Obtained solidliquid mixture is down to 20~30 DEG C, adds absolute ethyl alcohol or aqueous citric acid solution, places 1~2h, then filters, gained solid sample after drying, calcination process, obtains catalyst again.
2. in accordance with the method for claim 1, it is characterised in that:Step(1)Described in waste residue oil hydrogenating treatment catalyst using aluminum oxide as carrier, active metal component contain Mo and Co.
3. in accordance with the method for claim 1, it is characterised in that:Step(1)Described in catalyst precarsor A in Mo content be 5wt% ~ 10wt%, Co content is 1wt% ~ 3wt%, and Ni content is 1wt% ~ 5wt%.
4. in accordance with the method for claim 1, it is characterised in that:Step(2)Described in reducing atmosphere be the mixed gas of hydrogen or hydrogen and nitrogen, hydrogen volume percentage composition is 10%~95% in the mixed gas.
5. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in auxiliary agent presoma be one or more in magnesium nitrate, calcium nitrate, zirconium nitrate, cerous nitrate, lanthanum nitrate, preferably magnesium nitrate.
6. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in solution B, auxiliary agent is in terms of element, and the mass fraction in solution B is 3%~12%.
7. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in furfural aqueous solution the mass fraction of furfural be 30%~50%.
8. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in furfural aqueous solution and the mass ratio of solution B be 3 ~ 5.
9. in accordance with the method for claim 1, it is characterised in that:Step(3)Described in solution B and the gross mass and step of furfural aqueous solution(2)Obtained reduction rear catalyst precursor A mass ratio is 3~6.
10. in accordance with the method for claim 1, it is characterised in that:Step(4)Described in high molecular weight water soluble polymer be polyethylene glycol, polyvinylpyrrolidone, polyvinyl alcohol in one or more.
11. in accordance with the method for claim 1, it is characterised in that:Step(4)Described in active component presoma be one or more in nickel nitrate, nickel acetate, nickel sulfate, nickel chloride, preferably nickel nitrate.
12. in accordance with the method for claim 1, it is characterised in that:Step(4)Described in solution C, in active component presoma it is nickeliferous mass fraction in solution C is counted as 1%~3% using element, mass fraction of the high molecular weight water soluble polymer in solution C is 3~6 times of Ni element mass fractions.
13. in accordance with the method for claim 1, it is characterised in that:Step(5)Described in add the quality of absolute ethyl alcohol or citric acid and the mass ratio of high molecular weight water soluble polymer be 2 ~ 4.
14. in accordance with the method for claim 1, it is characterised in that:Step(5)Described in aqueous citric acid solution mass fraction be 10%~20%.
15. in accordance with the method for claim 1, it is characterised in that:Step(5)Described in drying temperature be 70~150 DEG C, preferably 80~120 DEG C, drying time be 2~12h, preferably 4~8h.
16. in accordance with the method for claim 1, it is characterised in that:Step(5)Described in sintering temperature be 350~650 DEG C, preferably 400~600 DEG C, roasting time be 2~12h, preferably 4~8h.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111841550A (en) * 2020-08-18 2020-10-30 中国科学技术大学 Application of Bimetallic Alloys in Anti-Carbon Catalyst for Methane Steam Reforming
CN113289630A (en) * 2021-05-19 2021-08-24 哈尔滨工业大学(深圳) Catalyst for diesel reforming reaction, preparation method thereof, hydrogen production reformer and system

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Publication number Priority date Publication date Assignee Title
EP0669163B1 (en) * 1994-02-02 1997-10-29 Degussa Aktiengesellschaft Formed copper catalyst for the selective hydrogenation of furfural to furfuryl-alcohol
CN103203240A (en) * 2013-03-11 2013-07-17 中国石油大学(华东) Preparation method and application of fixed bed framework metal catalyst

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669163B1 (en) * 1994-02-02 1997-10-29 Degussa Aktiengesellschaft Formed copper catalyst for the selective hydrogenation of furfural to furfuryl-alcohol
CN103203240A (en) * 2013-03-11 2013-07-17 中国石油大学(华东) Preparation method and application of fixed bed framework metal catalyst

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111841550A (en) * 2020-08-18 2020-10-30 中国科学技术大学 Application of Bimetallic Alloys in Anti-Carbon Catalyst for Methane Steam Reforming
CN113289630A (en) * 2021-05-19 2021-08-24 哈尔滨工业大学(深圳) Catalyst for diesel reforming reaction, preparation method thereof, hydrogen production reformer and system
CN113289630B (en) * 2021-05-19 2022-11-22 哈尔滨工业大学(深圳) Catalyst for diesel reforming reaction, preparation method thereof, hydrogen production reformer and system

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