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CN109126898A - It is a kind of to be passivated various metals simultaneously, improve light oil and the passivator of total liquid recovery and preparation method thereof - Google Patents

It is a kind of to be passivated various metals simultaneously, improve light oil and the passivator of total liquid recovery and preparation method thereof Download PDF

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Publication number
CN109126898A
CN109126898A CN201811122326.6A CN201811122326A CN109126898A CN 109126898 A CN109126898 A CN 109126898A CN 201811122326 A CN201811122326 A CN 201811122326A CN 109126898 A CN109126898 A CN 109126898A
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CN
China
Prior art keywords
parts
passivator
light oil
passivated
total liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811122326.6A
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Chinese (zh)
Inventor
顾同新
王勇
赵泽华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YIXING HANGUANG HIGH-TECH PETROCHEMICAL Co Ltd
Original Assignee
YIXING HANGUANG HIGH-TECH PETROCHEMICAL Co Ltd
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Application filed by YIXING HANGUANG HIGH-TECH PETROCHEMICAL Co Ltd filed Critical YIXING HANGUANG HIGH-TECH PETROCHEMICAL Co Ltd
Priority to CN201811122326.6A priority Critical patent/CN109126898A/en
Publication of CN109126898A publication Critical patent/CN109126898A/en
Pending legal-status Critical Current

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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
    • B01J33/00Protection of catalysts, e.g. by coating

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

Abstract

The passivator that the invention discloses one kind can be passivated various metals simultaneously, improves light oil and total liquid recovery, including following components in percentage by weight: 20 ~ 30 parts of sb oxide, 10 ~ 20 parts of cerous sulfate, 1 ~ 10 part of paraffin, 1 ~ 5 part of stearic acid, 1 ~ 5 part of calcium stearate, 5 ~ 10 parts of sodium carbonate, 10 ~ 15 parts of triethanolamine, 1 ~ 5 part of sodium hydroxide, 1 ~ 5 part of zinc stearate and 10 ~ 15 parts of water.Meanwhile the invention also discloses the preparation methods of above-mentioned passivator.The present invention has the function of while improving FCC reaction selectivity and conversion ratio, compared with former passivator, is keeping passivation effect, light oil yield and total liquid yield improve 0.8% again respectively on the basis of not reducing.

Description

A kind of passivator that can be passivated various metals simultaneously, improve light oil and total liquid recovery and Preparation method
Technical field
The invention belongs to function Field of Fine Chemicals, can be passivated various metals simultaneously more particularly to one kind, improve light oil And passivator of total liquid recovery and preparation method thereof.
Background technique
In catalytic cracking process, especially using mink cell focus to contain in the catalytic cracking process of raw material in feedstock oil Heavy metal, such as nickel, vanadium, copper, iron heavy metal can be deposited on catalyst surface and cause catalyst poisoning inactivation and selectivity decline, To make yield of light oil decline, hydrogen and coke yield rise.For the metallic pollution of catalytic cracking catalyst, industrially remove Demetalization pretreatment is carried out, outside the catalyst for selecting anti-metal ability strong to raw material, it can also setting using larger catalyst Throw-over rate improves the property of catalyst, and inhibits toxic action of the metal in raw material to catalyst using passivator. It wherein, the use of passivator is most simple, effective method.Metal passivating technique is the organic or inorganic chemical combination using certain metals Object is injected in catalytic cracking reaction-regenerative system with liquid, and is allowed to deposition on a catalyst, with the middle metal on catalyst It has an effect.When existing simultaneously a large amount of nickel, vanadium, sodium in crude oil, need to be added blunt nickel agent, blunt vanadium agent and blunt sodium agent simultaneously, Or it is added while having the multi-functional passivator of anti-nickel anti-vanadium the resistance against sodium energy.The prior art is frequently with sexavalence chromium type passivator conduct Passivator.But sexavalence chromium type passivator passivation effect is larger with the changes of contents of Cr VI, while passivation effect also less stable, Corrosion resistance is poor, can not be effectively protected nickel layer surface.Simultaneously as hexavalent chromium compound is easily absorbed by the body, can lead to Digestive system, respiratory tract, skin and mucous membrane intrusion human body are crossed, therefore environment and human body are endangered larger.And other traditional gold The stability for belonging to passivator is shorter, and general storage period can generate a large amount of precipitatings in 3 ~ 6 months, long term storage and use process, Serious even blocking pipeline.Conventional metals passivator is mostly acidic materials, ph in 2 ~ 4 or so (PH high influences product stabilities), Iron pipe or container are touched in storage and use process, acceleration equipment corrosive pipeline causes product effect to decline or fail, Even aggravate catalyst contamination.
Summary of the invention
Goal of the invention: in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to which a variety of gold can be passivated simultaneously by providing one kind Belong to, improve the passivator of light oil and total liquid recovery.
Another object of the present invention is to disclose the preparation method of above-mentioned passivator.
Technical solution: in order to achieve the above object of the invention, what the present invention specifically completed in this way: one kind can be passivated more simultaneously Kind metal, the passivator for improving light oil and total liquid recovery, including following components in percentage by weight: 20 ~ 30 parts of sb oxide, 10 ~ 20 parts of cerous sulfate, 1 ~ 10 part of paraffin, 1 ~ 5 part of stearic acid, 1 ~ 5 part of calcium stearate, 5 ~ 10 parts of sodium carbonate, 10 ~ 15 parts of triethanolamine, 1 ~ 5 part of sodium hydroxide, 1 ~ 5 part of zinc stearate and 10 ~ 15 parts of water.
Wherein, the sb oxide is antimony pentoxide or antimony oxide.
The method for preparing the above-mentioned passivator that can be passivated various metals simultaneously, improve light oil and total liquid recovery, including it is following Step:
(1) sb oxide, paraffin, stearic acid, calcium stearate, sodium carbonate and triethanolamine are measured by formula and successively puts into reaction kettle Stirring, temperature are controlled at 75 ~ 80 DEG C, are heated 50 ~ 60min, are then heated to boiling, and flow back 30 ~ 50min, are cooled to room temperature;
(2) cerous sulfate, sodium hydroxide, zinc stearate and water being measured by formula, temperature is controlled at 65 ~ 70 DEG C, 40 ~ 50min is heated, It is then heated to boiling, flow back 20 ~ 40min, is cooled to room temperature;
(3) mixture obtained by step (1) and step (2) is subjected to 20 ~ 30min of mixing, by pH adjusting agent control pH7 ~ 8 to get.
Wherein, the pH adjusting agent is sodium carbonate, sodium bicarbonate, disodium bicarbonate or sodium hydroxide.
Wherein, the step (1), the zeolite of mixture quality percentage 1 ~ 2% is added in step (2) heating process.
The utility model has the advantages that the present invention, compared with traditional technology, there are following advantages:
(1) present invention has the function of while improving FCC reaction selectivity and conversion ratio, compared with former passivator, is keeping blunt Change effect, light oil yield and total liquid yield improve 0.8% again respectively on the basis of not reducing;
(2) present invention selects a kind of weakly alkaline metal oxide according to the mechanism of metal poisoning to act on vanadic acid, generates one The highly stable solid metal hydrochlorate of kind, achievees the purpose that passivating vanadium;
(3) when 100ppm is added in the present invention, less than 1, catalyst consumption controls when less than 0.8 H/C ratio in catalytic cracked dry gas, Catalyst activity not low 62.
Specific embodiment
Embodiment 1:
20 parts of sb oxide, 1 part of paraffin, 1 part of stearic acid, 1 part of calcium stearate, 5 parts of carbon are taken by weight percentage Sour sodium and 10 parts of triethanolamine successively put into reaction kettle stirring, temperature control at 75 ~ 80 DEG C, heat 50 ~ 60min, then plus Heat is to boiling, and flow back 30 ~ 50min, is cooled to room temperature;10 parts of cerous sulfate, 1 part of sodium hydroxide, 1 part are taken by weight percentage Zinc stearate and 10 parts of water, temperature controls at 65 ~ 70 DEG C, heats 40 ~ 50min, be then heated to boiling, flow back 20 ~ 40min is cooled to room temperature;Above-mentioned gained mixture is subjected to 20 ~ 30min of mixing, pH7 ~ 8 are controlled by pH adjusting agent, To obtain the final product.
Embodiment 2:
30 parts of sb oxide, 10 parts of paraffin, 5 parts of stearic acid, 5 parts of calcium stearate, 10 parts are taken by weight percentage Sodium carbonate and 15 parts of triethanolamine successively put into reaction kettle stirring, and temperature is controlled at 75 ~ 80 DEG C, heat 50 ~ 60min, then It is heated to boiling, flow back 30 ~ 50min, is cooled to room temperature;20 parts of cerous sulfate, 5 parts of sodium hydroxide, 5 are taken by weight percentage Part zinc stearate and 15 parts of water, temperature controls at 65 ~ 70 DEG C, heats 40 ~ 50min, be then heated to boiling, flow back 20 ~ 40min is cooled to room temperature;Above-mentioned gained mixture is subjected to 20 ~ 30min of mixing, pH7 ~ 8 are controlled by pH adjusting agent, To obtain the final product.
Embodiment 3:
25 parts of sb oxide, 5 parts of paraffin, 3 parts of stearic acid, 3 parts of calcium stearate, 8 parts of carbon are taken by weight percentage Sour sodium and 12 parts of triethanolamine successively put into reaction kettle stirring, temperature control at 75 ~ 80 DEG C, heat 50 ~ 60min, then plus Heat is to boiling, and flow back 30 ~ 50min, is cooled to room temperature;15 parts of cerous sulfate, 3 parts of sodium hydroxide, 3 parts are taken by weight percentage Zinc stearate and 13 parts of water, temperature controls at 65 ~ 70 DEG C, heats 40 ~ 50min, be then heated to boiling, flow back 20 ~ 40min is cooled to room temperature;Above-mentioned gained mixture is subjected to 20 ~ 30min of mixing, pH7 ~ 8 are controlled by pH adjusting agent, To obtain the final product.
Embodiment 4:
22 parts of sb oxide, 2 parts of paraffin, 2 parts of stearic acid, 2 parts of calcium stearate, 6 parts of carbon are taken by weight percentage Sour sodium and 11 parts of triethanolamine successively put into reaction kettle stirring, temperature control at 75 ~ 80 DEG C, heat 50 ~ 60min, then plus Heat is to boiling, and flow back 30 ~ 50min, is cooled to room temperature;12 parts of cerous sulfate, 2 parts of sodium hydroxide, 3 parts are taken by weight percentage Zinc stearate and 11 parts of water, temperature controls at 65 ~ 70 DEG C, heats 40 ~ 50min, be then heated to boiling, flow back 20 ~ 40min is cooled to room temperature;Above-mentioned gained mixture is subjected to 20 ~ 30min of mixing, pH7 ~ 8 are controlled by pH adjusting agent, To obtain the final product.
Embodiment 5:
28 parts of sb oxide, 9 parts of paraffin, 4 parts of stearic acid, 3 parts of calcium stearate, 8 parts of carbon are taken by weight percentage Sour sodium and 14 parts of triethanolamine successively put into reaction kettle stirring, temperature control at 75 ~ 80 DEG C, heat 50 ~ 60min, then plus Heat is to boiling, and flow back 30 ~ 50min, is cooled to room temperature;18 parts of cerous sulfate, 3 parts of sodium hydroxide, 4 parts are taken by weight percentage Zinc stearate and 14 parts of water, temperature controls at 65 ~ 70 DEG C, heats 40 ~ 50min, be then heated to boiling, flow back 20 ~ 40min is cooled to room temperature;Above-mentioned gained mixture is subjected to 20 ~ 30min of mixing, pH7 ~ 8 are controlled by pH adjusting agent, To obtain the final product.

Claims (5)

1. the passivator that one kind can be passivated various metals simultaneously, improve light oil and total liquid recovery, which is characterized in that including following heavy The component of amount percentage: 20 ~ 30 parts of sb oxide, 10 ~ 20 parts of cerous sulfate, 1 ~ 10 part of paraffin, 1 ~ 5 part of stearic acid, 1 ~ 5 parts of calcium stearate, 5 ~ 10 parts of sodium carbonate, 10 ~ 15 parts of triethanolamine, 1 ~ 5 part of sodium hydroxide, 1 ~ 5 part of stearic acid Zinc and 10 ~ 15 parts of water.
2. the passivator that can be passivated various metals simultaneously according to claim 1, improve light oil and total liquid recovery, feature exist In the sb oxide is antimony pentoxide or antimony oxide.
3. the method that can be passivated various metals, the passivator for improving light oil and total liquid recovery described in preparation power 1 simultaneously, feature exist In, comprising the following steps:
(1) sb oxide, paraffin, stearic acid, calcium stearate, sodium carbonate and triethanolamine are measured by formula and successively puts into reaction kettle Stirring, temperature are controlled at 75 ~ 80 DEG C, are heated 50 ~ 60min, are then heated to boiling, and flow back 30 ~ 50min, are cooled to room temperature;
(2) cerous sulfate, sodium hydroxide, zinc stearate and water being measured by formula, temperature is controlled at 65 ~ 70 DEG C, 40 ~ 50min is heated, It is then heated to boiling, flow back 20 ~ 40min, is cooled to room temperature;
(3) mixture obtained by step (1) and step (2) is subjected to 20 ~ 30min of mixing, by pH adjusting agent control pH7 ~ 8 to get.
4. preparing the side that can be passivated various metals, the passivator for improving light oil and total liquid recovery simultaneously according to claim 3 Method, which is characterized in that the pH adjusting agent is sodium carbonate, sodium bicarbonate, disodium bicarbonate or sodium hydroxide.
5. preparing the side that can be passivated various metals, the passivator for improving light oil and total liquid recovery simultaneously according to claim 3 Method, which is characterized in that the zeolite of mixture quality percentage 1 ~ 2% is added in the step (1), step (2) heating process.
CN201811122326.6A 2018-09-26 2018-09-26 It is a kind of to be passivated various metals simultaneously, improve light oil and the passivator of total liquid recovery and preparation method thereof Pending CN109126898A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111054449A (en) * 2019-12-31 2020-04-24 宜兴汉光高新石化有限公司 Environment-friendly multi-metal passivator and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104066819A (en) * 2011-11-21 2014-09-24 巴斯夫公司 Improved metal passivator/trap for FCC processes
CN104818045A (en) * 2014-01-31 2015-08-05 环球油品公司 Resid catalytic cracker and catalyst for increasing propylene yield
CN104841490A (en) * 2015-04-08 2015-08-19 宜兴市中大凯化工有限公司 Method for preparing double metal deactivator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104066819A (en) * 2011-11-21 2014-09-24 巴斯夫公司 Improved metal passivator/trap for FCC processes
CN104818045A (en) * 2014-01-31 2015-08-05 环球油品公司 Resid catalytic cracker and catalyst for increasing propylene yield
CN104841490A (en) * 2015-04-08 2015-08-19 宜兴市中大凯化工有限公司 Method for preparing double metal deactivator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111054449A (en) * 2019-12-31 2020-04-24 宜兴汉光高新石化有限公司 Environment-friendly multi-metal passivator and preparation method thereof

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Application publication date: 20190104