CN104130104A - Method for making gas, supplementing carbon and increasing methanol yield by chopped coke with 7-24mm - Google Patents
Method for making gas, supplementing carbon and increasing methanol yield by chopped coke with 7-24mm Download PDFInfo
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- CN104130104A CN104130104A CN201410313494.9A CN201410313494A CN104130104A CN 104130104 A CN104130104 A CN 104130104A CN 201410313494 A CN201410313494 A CN 201410313494A CN 104130104 A CN104130104 A CN 104130104A
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 239000000571 coke Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 230000001502 supplementing effect Effects 0.000 title abstract 2
- 239000007789 gas Substances 0.000 claims abstract description 96
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000004939 coking Methods 0.000 claims abstract description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 21
- 230000023556 desulfurization Effects 0.000 claims description 21
- 241001494479 Pecora Species 0.000 claims description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 229910052717 sulfur Inorganic materials 0.000 claims description 10
- 239000011593 sulfur Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 238000013022 venting Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000003034 coal gas Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 230000008929 regeneration Effects 0.000 claims description 4
- 238000011069 regeneration method Methods 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 230000002194 synthesizing effect Effects 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- DSMZRNNAYQIMOM-UHFFFAOYSA-N iron molybdenum Chemical compound [Fe].[Fe].[Mo] DSMZRNNAYQIMOM-UHFFFAOYSA-N 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- PVXVWWANJIWJOO-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-N-ethylpropan-2-amine Chemical compound CCNC(C)CC1=CC=C2OCOC2=C1 PVXVWWANJIWJOO-UHFFFAOYSA-N 0.000 claims description 2
- QMMZSJPSPRTHGB-UHFFFAOYSA-N MDEA Natural products CC(C)CCCCC=CCC=CC(O)=O QMMZSJPSPRTHGB-UHFFFAOYSA-N 0.000 claims description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000005984 hydrogenation reaction Methods 0.000 claims description 2
- 238000005201 scrubbing Methods 0.000 claims description 2
- 235000018553 tannin Nutrition 0.000 claims description 2
- 229920001864 tannin Polymers 0.000 claims description 2
- 239000001648 tannin Substances 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 abstract description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 7
- 239000003245 coal Substances 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 238000002407 reforming Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
- C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
- C07C29/1516—Multisteps
- C07C29/1518—Multisteps one step being the formation of initial mixture of carbon oxides and hydrogen for synthesis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Abstract
The invention belongs to the technical field of comprehensive utilization of coke-oven gas, and concretely relates to a method for making gas, supplementing carbon and increasing methanol yield by chopped coke with 7-24mm. By aiming the component characteristic of coke-oven gas, the disadvantages that hydrogen component utilization is insufficient in prior art can be solved, by combing real condition of good quality, low price and difficult sale of self-produced 7-24 chopped coke in a coking enterprise, production flow can be improved and optimized, and full utilization of the effective component of the coke-oven gas can be realized. The rich H2 in the coke-oven gas is taken as a reference for supplying carbon source, the self-produced chopped coke with 7-24 mm in the coking enterprise is taken as a raw material, a continuous oxygen-rich normal pressure gas making furnace is used for producing gas, a gas purifying processing system is cooperated, methanol production capability in current enterprise is increased, hydrogen resource is fully used, so that purposes of less investment, large yield increase and increased integral economic benefit can be reached.
Description
Technical field
The invention belongs to coke(oven)gas comprehensive utilization technique field, be specially the method that the burnt gas processed of 7～24mm chopped cooked entrails of sheep is mended carbon increase yield of methanol.
Background technology
China is coke production big country, a large amount of coke(oven)gas of by-product in coke production, and especially independent coke-oven plant of large-scale coke-oven plant must the feasible effective coke(oven)gas comprehensive utilization device of auxiliary construction.Coke(oven)gas comparison of ingredients is complicated and unstable, and generally, the coke(oven)gas low heat value after purifying is 17580～18420kJ/m
3, density is 0.45～0.48kg/m
3, it is few that the principal feature of component shows as the many carbon of hydrogen, according to volume fraction meter, and CH in coke(oven)gas
4nearly 25%, CO, CO
2, CH
4, CnHm adds up to approximately 40%, H
2can be up to 60%.
According to coke(oven)gas component feature, mainly utilize at present approach, the one, be directly used in city domestic gas, this approach is limited by the factors such as region, civilian tolerance, combustion cleaning, is progressively being replaced by Sweet natural gas; The 2nd, for gas turbine power generation, this utilizes the economic benefit of approach to be limited by networking electricity price; The 3rd, through transforming, carry the chemical such as the different courses of processing such as hydrogen, synthesizing methanol, synthetic ammonia; The 4th, through courses of processing such as methanations, the clean fuels such as production synthetic natural gas (SNG), compressed natural gas (CNG) or natural gas liquids (LNG).Because methyl alcohol is basic chemical industry raw material, of many uses, be convenient to store and transport, domesticly over nearly 10 years build the more device taking coke(oven)gas as raw material production methyl alcohol.Generally, coke scale is 10 to 1 with the macro ratio of supporting methyl alcohol, and 1,000,000 t/a coke devices are wanted auxiliary construction 100,000 t/a methanol devices.
At present, the conventional process flow process taking coke(oven)gas as raw material production methyl alcohol is illustrated as shown in Figure 1.
From coke(oven)gas process rough purification desulfurization and the smart desulfurization of coking system, by H
2s content takes off to 0.1ppm, enters synthetic gas CO and H that converter becomes methanol to use the methane conversion in coke(oven)gas
2.Because current state of the art is limit, synthetic gas is lower through the yield of primary first-order equation synthesizing methanol, adopt circulating reaction.For inert gas content in synthetic cyclic gas is maintained within a certain range, entering to need to emit before circulator a part of unreacting gas (venting of speeding), all the other most gases enter to mix with fresh synthetic gas after compressor pressurizes and return to synthetic tower and recycle.Due to the principal feature of coke(oven)gas component, to show as the many carbon of hydrogen few, H in the synthetic gas after conversion
2content is higher, and hydrogen-carbon ratio is about 2.78, and the requirement of the synthetic gas hydrogen-carbon ratio of methanol is 2.10～2.15.Superfluous hydrogen in synthetic gas, with venting (hydrogen 70%) discharge of speeding, can only be back to converter or coke oven heating system is burnt as fuel, has wasted valuable hydrogen resource, also can cause methyl methanol syngas internal circulating load large simultaneously, and plant energy consumption is high.
Summary of the invention
The present invention is directed to coke(oven)gas component feature, solve the weak point that hydrogen component in coke(oven)gas is utilized existing in prior art, good in conjunction with the burnt inner quality of the self-produced 7～24mm chopped cooked entrails of sheep of coal chemical enterprise, price is low, the practical situation of sales difficulty, improve and optimizate Production Flow Chart, realize making full use of of coke(oven)gas active principle.The present invention is with H rich in coke(oven)gas
2for benchmark is supplied carbon source, taking the self-produced 7～24mm chopped cooked entrails of sheep of coal chemical enterprise Jiao as raw material, with continuous oxygen enrichment normal pressure Gas-making Furnace gas processed, supporting gas sweetening treatment system, improve existing enterprise's production capacity of methanol, make full use of hydrogen resource, thereby reach the object of less investment, the raising of many, the whole economic efficiency of volume increase.
technical scheme of the present invention is as follows:
The method that the burnt gas processed of 7～24mm chopped cooked entrails of sheep is mended carbon increase yield of methanol, its step is as follows:
(1) enter wet desulphurization from the coke(oven)gas of coking system, the inorganic sulfur in gas is removed more than 95%, the gas that goes out thionizer is sent into gas holder through outlet water seal; Absorb H
2sulfur removing pregnant solution after S enters regeneration system rapidly, and the lean solution after regeneration is sent desulphurization system back to and recycled;
The oxygen of (2) 7～24mm chopped cooked entrails of sheep Jiao, 0.3MPa steam and purity 99.6% enters the continuous Gas-making Furnace of normal pressure oxygen enrichment, and water produced coal gas enters above-mentioned steps (1) gas holder after the purification such as dedusting, wet desulphurization;
(3) in above-mentioned steps (1) gas holder take off that synthetic gas after inorganic sulfur is compressed, dry desulfurization, smart desulfurization, total sulfur is removed to 0.1ppm and enters below converter, the oxygen mix of dividing with steam with from sky, the effective gas CO and the H that under the effect of nickel-base catalyst, the methane conversion in coke(oven)gas are become methanol use
2;
(4) synthetic gas that goes out converter, after waste heat boiler heat exchange operation recovered energy cooling, is sent to synthesic gas compressor after water cooler Separation of Water, after compressed and preheating, enters methyl alcohol synthetic reactor synthesizing methanol; The synthetic venting of speeding of methyl alcohol is reclaimed H through pressure-variable adsorption (PSA-H) operation
2after tail gas send converter heating system comprehensive utilization, the H of recovery
2get back to synthetic compression for the production of methyl alcohol.
In above-mentioned steps (2), dedusting employing electric precipitation or Venturi scrubber, carbon are washed tower scrubbing dust collection desulfurization.
In above-mentioned steps (2), wet desulphurization adopts MDEA method, NHD method.
In above-mentioned steps (2), wet desulphurization can also adopt tannin extract method or modified ADA method.
In above-mentioned steps (3), dry desulfurization adopts secondary hydrogenation iron molybdenum conversion catalyst, and 280～320 DEG C of temperature, pressure 2.4～2.65MPa, for organic sulfide removal.
Warm Zinc oxide desulfurizer in smart desulfurization employing in above-mentioned steps (3), 350 DEG C of temperature, pressure 2.4MPa, for removing H2S.
Dry desulfurization and the two configured in series of smart desulfurization in above-mentioned steps (3), desulfurization precision reaches H2S content and is less than 0.1ppm.
The middle methyl alcohol of above-mentioned steps (3) synthesizes in employing, low pressure methanol synthesis technique, and 210～270 DEG C of synthesis pressure 5.0～13.0MPa, temperature, adopt Cu-series catalyst.
Pressure-variable adsorption (PSA-H) operation described in above-mentioned steps (4), condition is pressure 0.8～3.5MPa, temperature≤40 DEG C, H
2the rate of recovery 75%～95%, H
2purity (v) 96%～99.999%.
beneficial effect of the present invention is:
1. the present invention is the H making full use of in coke(oven)gas
2component, proposes first with rich H
2amount, for benchmark, taking self-produced 7～24mm chopped cooked entrails of sheep Jiao of enterprise as raw material, adopts continuous Oxygen-enriched gas making furnace gas supplementary carbon source processed increase yield of methanol.
2. the present invention has fundamentally solved preparing methanol from coke oven gas H
2superfluous problem, has given full play to the rich hydrogen advantage of coke(oven)gas, has improved methanol output, has reduced consumption.
3. the present invention has taken into full account that the burnt price of the self-produced 7～24mm chopped cooked entrails of sheep of coal chemical enterprise is low, the reality of sales difficulty, can fully utilize enterprise's self-made products, improves enterprise's whole economic efficiency.
4. the present invention has taken into full account that the existing coal chemical enterprise of methanol has air separation facility, adopts continuous Oxygen-enriched gas making furnace gas processed to mend carbon and can make full use of the rich oxygen of existing air separation facility, reduces investment.
5. the newly-built a set of gas maker of the present invention; for the protection of coke oven under accidental state provides the emergent source of the gas of a heating use (because coke oven is that continuous production can not stop; will scrap once coke oven stops heating for a long time, also need to have emergent source of the gas for a heating for subsequent use from the viewpoint of the independent coal chemical enterprise of protection coke oven).
Brief description of the drawings
Fig. 1 is the schema of recording in background technology of the present invention.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment
From the coke(oven)gas 49000Nm of the purifying treatment such as wet desulphurization
3/ h, 40 DEG C of temperature, pressure 0.104MPa, component (v%): H
261.1, CH
423.5, CO 8.5, CO
22.1, N
23.0, CnHm 1.5, O
20.3, H
2s 40mg/Nm
3, organosulfur 120mg/Nm
3.
The oxygen 2900Nm of 7～24mm chopped cooked entrails of sheep burnt 5.625t/h, 0.3MPa steam 9t/h and purity 99.6%
3/ h enters the continuous Gas-making Furnace of normal pressure oxygen enrichment, and water produced coal gas, through electric precipitation and the desulfurization of NHD method, obtains water purification coal gas 12000Nm
3/ h, 40 DEG C of temperature, pressure 0.104MPa, component (v%): H
235.0, CO 45.8, CO
217.5, CH
40.5, N
20.9, O
20.3, H
2s 40mg/Nm
3, organosulfur 120mg/Nm
3.
Above-mentioned coke(oven)gas, water-gas enter after gas holder mixing, and the compressed 2.65MPa that arrives, is preheated to 300 DEG C and enters iron molybdenum convertor, is inorganic sulfur by most of organosulfur hydrocracking, through zinc oxide desulfurization groove, total sulfur is removed to below 0.1ppm.The gas mixture completing after desulfurization mixes with the 3.9MPa saturation steam from converter waste heat boiler, be heated to 650 DEG C through preheater and process furnace again, with divide from sky and be heated to the oxygen mix of 480～510 DEG C, the synthetic gas CO and the H that in the converter that has nickel accelerant, become methanol to use the methane conversion in coke(oven)gas
2, obtain reforming gas 83606Nm
3/ h, component (v%): H
267.17, CO 20.28, CO
29.72, CH
40.9, N
21.93,40 DEG C of temperature, pressure 2.3MPa.
Above-mentioned reforming gas is after waste heat boiler heat exchange operation recovered energy cooling, after water cooler Separation of Water, be sent to synthesic gas compressor, be compressed to 5.3MPa and be preheated to 225 DEG C and enter methyl alcohol synthetic reactor, generate the reaction gas containing methyl alcohol (6～7) % through catalysis, adiabatic isothermal reaction, reaction gas generates thick methyl alcohol 40.938t/h through heat exchange, cooling separation with circulation gas after going out tower, and thick methyl alcohol is through rectifying output refined methanol 32.75t/h.Unreacted gas circulation is used, to improve methanol conversion.The synthetic venting of speeding of methyl alcohol is reclaimed H through pressure-variable adsorption operation
25030Nm
3/ h, wherein H
2content 99.4%(v), 40 DEG C of temperature, pressure 2.3MPa, gets back to synthetic compression for the production of methyl alcohol.Reclaim H
2after the tail gas 6634Nm that exits that speeds
3/ h, send the comprehensive utilization of converter heating system.
Claims (9)
- The method that the burnt gas processed of 1.7～24mm chopped cooked entrails of sheep is mended carbon increase yield of methanol, its step is as follows:(1) enter wet desulphurization from the coke(oven)gas of coking system, the inorganic sulfur in gas is removed more than 95%, the gas that goes out thionizer is sent into gas holder through outlet water seal; Absorb H 2sulfur removing pregnant solution after S enters regeneration system rapidly, and the lean solution after regeneration is sent desulphurization system back to and recycled;The oxygen of (2) 7～24mm chopped cooked entrails of sheep Jiao, 0.3MPa steam and purity 99.6% enters the continuous Gas-making Furnace of normal pressure oxygen enrichment, and water produced coal gas enters above-mentioned steps (1) gas holder after the purification such as dedusting, wet desulphurization;(3) in above-mentioned steps (1) gas holder take off that synthetic gas after inorganic sulfur is compressed, dry desulfurization, smart desulfurization, total sulfur is removed to 0.1ppm and enters below converter, the oxygen mix of dividing with steam with from sky, the effective gas CO and the H that under the effect of nickel-base catalyst, the methane conversion in coke(oven)gas are become methanol use 2;(4) synthetic gas that goes out converter, after waste heat boiler heat exchange operation recovered energy cooling, is sent to synthesic gas compressor after water cooler Separation of Water, after compressed and preheating, enters methyl alcohol synthetic reactor synthesizing methanol; The synthetic venting of speeding of methyl alcohol is reclaimed H through pressure-variable adsorption (PSA-H) operation 2after tail gas send converter heating system comprehensive utilization, the H of recovery 2get back to synthetic compression for the production of methyl alcohol.
- 2. the method that the burnt gas processed of 7～24mm chopped cooked entrails of sheep according to claim 1 is mended carbon increase yield of methanol, is characterized in that, in above-mentioned steps (2), dedusting employing electric precipitation or Venturi scrubber, carbon are washed tower scrubbing dust collection desulfurization.
- 3. the method that the burnt gas processed of 7～24mm chopped cooked entrails of sheep according to claim 1 is mended carbon increase yield of methanol, is characterized in that, in above-mentioned steps (2), wet desulphurization adopts MDEA method, NHD method.
- 4. the method that the burnt gas processed of 7～24mm chopped cooked entrails of sheep according to claim 1 is mended carbon increase yield of methanol, is characterized in that, in above-mentioned steps (2), wet desulphurization can also adopt tannin extract method or modified ADA method.
- 5. the method that the burnt gas processed of 7～24mm chopped cooked entrails of sheep according to claim 1 is mended carbon increase yield of methanol, it is characterized in that, in above-mentioned steps (3), dry desulfurization adopts secondary hydrogenation iron molybdenum conversion catalyst, and 280～320 DEG C of temperature, pressure 2.4～2.65MPa, for organic sulfide removal.
- 6. the method that the burnt gas processed of 7～24mm chopped cooked entrails of sheep according to claim 1 is mended carbon increase yield of methanol, is characterized in that, warm Zinc oxide desulfurizer in smart desulfurization employing in above-mentioned steps (3), and 350 DEG C of temperature, pressure 2.4MPa, for removing H2S.
- 7. the method for mending carbon increase yield of methanol according to the burnt gas processed of the 7～24mm chopped cooked entrails of sheep described in claim 5 or 6, is characterized in that, dry desulfurization and the two configured in series of smart desulfurization in above-mentioned steps (3), and desulfurization precision reaches H2S content and is less than 0.1ppm.
- 8. the method that the burnt gas processed of 7～24mm chopped cooked entrails of sheep according to claim 1 is mended carbon increase yield of methanol, it is characterized in that, the middle methyl alcohol of above-mentioned steps (3) synthesizes in employing, low pressure methanol synthesis technique, and 210～270 DEG C of synthesis pressure 5.0～13.0MPa, temperature, adopt Cu-series catalyst.
- 9. the method that the burnt gas processed of 7～24mm chopped cooked entrails of sheep according to claim 1 is mended carbon increase yield of methanol, is characterized in that, the pressure-variable adsorption operation described in above-mentioned steps (4), and condition is pressure 0.8～3.5MPa, temperature≤40 DEG C, H 2the rate of recovery 75%～95%, H 2purity (v) 96%～99.999%.
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| CN201410313494.9A CN104130104A (en) | 2014-07-03 | 2014-07-03 | Method for making gas, supplementing carbon and increasing methanol yield by chopped coke with 7-24mm |
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|---|---|---|---|
| CN201410313494.9A CN104130104A (en) | 2014-07-03 | 2014-07-03 | Method for making gas, supplementing carbon and increasing methanol yield by chopped coke with 7-24mm |
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| CN103524300A (en) * | 2013-10-18 | 2014-01-22 | 七台河宝泰隆甲醇有限公司 | Method for jointly producing methyl alcohol by using water gas and coke oven gas |
-
2014
- 2014-07-03 CN CN201410313494.9A patent/CN104130104A/en active Pending
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|---|---|---|---|---|
| CN101003359A (en) * | 2006-12-14 | 2007-07-25 | 杨献斌 | Method for preparing methanol synthesis gas by using coke oven gas to make hydrogen, and complementing carbon from water gas |
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