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Catalyst, preparation method and composite catalyst for hydrocatalytic thermal cracking

A technology for catalytic thermal cracking and composite catalysts, applied in the field of composite catalysts, can solve the problems of poor by-product properties, low yield of high-density fuel blending components, etc., and achieves the effects of strong applicability, reduction of coke generation, and reduction of addition amount

Active Publication Date: 2020-04-14
INNER MONGOLIA SHENGYUAN TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above two technical routes are difficult to solve the problems of low yield of high-density fuel blending components and poor properties of by-products

Method used

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  • Catalyst, preparation method and composite catalyst for hydrocatalytic thermal cracking
  • Catalyst, preparation method and composite catalyst for hydrocatalytic thermal cracking
  • Catalyst, preparation method and composite catalyst for hydrocatalytic thermal cracking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A catalyst for hydrogen-catalyzed thermal cracking, the catalyst uses silicon dioxide as the core, and molybdenum disulfide is coated on the outside of the core as the shell; the catalyst is prepared by the following method: ethanol with ammonium tetrathiomolybdate and silicon dioxide The dispersion liquid is used as a raw material and prepared by reacting polyethylene glycol with the participation of hydroxylamine hydrochloride as a reducing agent. The inner core has a diameter of 278 nm and the outer shell has a thickness of 13 nm.

[0024] Preparation:

[0025] Under a nitrogen atmosphere, add deionized water, ethanol dispersion, ammonium tetrathiomolybdate, polyethylene glycol and hydroxylamine hydrochloride (the molar ratio of silicon dioxide:ammonium tetrathiomolybdate:hydroxylamine hydrochloride) to the reaction vessel 4:1:6), heated to 70°C while stirring, reacted for 120 minutes, cooled to room temperature after the reaction, and obtained a solid reaction prod...

Embodiment 2

[0027] A catalyst for hydrogen catalytic thermal cracking, the catalyst uses silicon dioxide as the core, molybdenum disulfide is coated on the outside of the core as the shell; the catalyst is prepared by the following method: ammonium tetrathiomolybdate and silicon dioxide The ethanol dispersion liquid is used as a raw material, and it is prepared by reacting with polypyrrolidone under the participation of hydroxylamine hydrochloride as a reducing agent. The inner core has a diameter of 275 nm and the outer shell has a thickness of 15 nm.

[0028] Preparation:

[0029] Under a nitrogen atmosphere, add deionized water, ethanol dispersion, ammonium tetrathiomolybdate, polypyrrolidone and hydroxylamine hydrochloride (the mol ratio of silicon dioxide: ammonium tetrathiomolybdate: hydroxylamine hydrochloride is 5 :1:4), heated to 90°C for reaction while stirring, the reaction time was 60min, cooled to room temperature after the reaction was over, to obtain a solid reaction produ...

Embodiment 3

[0031] A catalyst for hydrogen catalytic thermal cracking, the catalyst uses silicon dioxide as the core, molybdenum disulfide is coated on the outside of the core as the shell; the catalyst is prepared by the following method: ammonium tetrathiomolybdate and silicon dioxide The ethanol dispersion liquid is used as a raw material, and it is prepared by reacting with potassium oleate under the participation of hydroxylamine hydrochloride as a reducing agent. The inner core has a diameter of 282 nm and the outer shell has a thickness of 17 nm.

[0032] The preparation method is basically the same as in Example 1, except that the amphiphilic molecule modifier is potassium oleate.

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Abstract

The invention provides a catalytic hydroprocessing thermal cracking catalyst, a preparation method thereof and a composite catalyst for producing high-density fuel blending components by inferior heavy oil hydroprocessing. The catalyst takes silicon dioxide as an inner core, and molybdenum disulfide is coated outside the inner core to serve as a shell; and the catalyst is prepared by enabling an ethanol dispersion solution of ammonium tetrathiomolybdate and silicon dioxide, serving as a raw material, to react with an amphipathic molecule modifying agent under the participation of hydroxylamine hydrochloride serving as a reducing agent. The composite catalyst comprises the catalytic hydroprocessing thermal cracking catalyst and a fixed-bed hydrogenation catalyst. The catalyst is applied to the slurry-bed hydrocracking technology of inferior residual oil, the addition amount of the catalyst can be reduced, and the processing cost of the residual oil can be lowered.

Description

technical field [0001] The invention belongs to the technical field of inferior heavy oil treatment, and relates to a catalyst for catalytic thermal cracking with hydrogen, a preparation method and a composite catalyst for hydrogenating inferior heavy oil to produce high-density fuel blending components. Background technique [0002] At present, there are mainly two technical routes of hydrogenation and denitrification in the processing of low-quality heavy oil to produce high-density fuel blending components. The hydrogenation process mainly includes fixed bed hydrogenation, moving bed hydrogenation, ebullating bed hydrogenation and suspension bed hydrogenation; while the decarbonization process mainly includes visbreaking, coking, thermal cracking, heavy oil catalytic cracking, solvent deasphalting and solvent extraction etc. However, the above two technical routes are difficult to solve the problems of low yield of high-density fuel blending components and poor propertie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/051B01J29/072B01J29/076B01J21/08B01J23/30B01J23/42B01J23/883C10G47/06C10G47/14C10G47/20
CPCB01J21/08B01J23/30B01J23/42B01J23/883B01J27/051B01J29/072B01J29/076C10G47/06C10G47/14C10G47/20C10G2300/70
Inventor 李传邓文安王金林冯亮杜峰李庶峰贺西格满都呼
Owner INNER MONGOLIA SHENGYUAN TECH CO LTD
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