Gasoline hydrorefining catalyst, and preparation method thereof

A gasoline hydrogenation and catalyst technology, which is applied in the direction of molecular sieve catalysts, chemical instruments and methods, organic compound/hydride/coordination complex catalysts, etc., can solve the problems of slow coking speed, high metal content, and poor desulfurization and denitrification effects Good and other questions

Active Publication Date: 2018-08-28
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN100998952A prepares a coker gasoline hydrotreating catalyst containing Mo, W, Ni and P. The catalyst has high metal content and has a low olefin saturation temperature when coking gasoline is processed, and olefin saturation, desulfurization, and denitrogenation reactions are carri

Method used

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  • Gasoline hydrorefining catalyst, and preparation method thereof
  • Gasoline hydrorefining catalyst, and preparation method thereof

Examples

Experimental program
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Effect test

Example Embodiment

[0038] Example 1

[0039] Take 100g pseudo-boehmite, 20g TS-1 molecular sieve, add 1g graphene, and mix well. Add 4g sesame powder, mix well, add dropwise a mixed solution consisting of 4g nitric acid, 4g citric acid and 40g deionized water, knead, extrude into a 1.5mm clover shape, freeze-dry, and then roast at 550°C for 4h to make the carrier . Reuse Ni 6 [WNi 3 (H 2 O) 2 (ZnW 9 O 34 ) 2 ] The prepared impregnation solution is immersed in equal volume, freeze-dried, and calcined at 400°C for 4 hours to prepare catalyst A.

Example Embodiment

[0040] Example 2

[0041] Take 100g pseudo-boehmite, 20g TS-1 molecular sieve, add 1g graphene, and mix well. Add 4g sesame powder, mix well, add dropwise a mixed solution consisting of 4g nitric acid, 4g citric acid and 40g deionized water, knead, extrude into a 1.5mm clover shape, freeze-dry, and then roast at 550°C for 4h to make the carrier . Reuse Co 6 [WCo 3 (H 2 O) 2 (ZnW 9 O 34 ) 2 ] The prepared impregnation solution is immersed in equal volume, freeze-dried, and calcined at 400°C for 4 hours to prepare catalyst B.

Example Embodiment

[0042] Example 3

[0043] Take 100g pseudo-boehmite, 84g TS-1 molecular sieve, add 14g graphene, and mix well. Add 14g of sesame powder, mix well, add dropwise an aqueous solution containing 14g of nitric acid and 14g of citric acid to knead, extrude into a 1.5mm cylindrical strip, freeze-dry, and then calcinate at 550°C for 4h to prepare a carrier. Reuse Ni 6 [WNi 3 (H 2 O) 2 (ZnW 9 O 34 ) 2 ] The prepared impregnation solution is immersed in equal volume, freeze-dried, and calcined at 400°C for 6 hours to prepare catalyst C.

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Abstract

The invention discloses a gasoline hydrorefining catalyst. The gasoline hydrorefining catalyst comprises a carrier and an active component; the active component is loaded onto the carrier, a heteropoly acid is taken as the active component, and an Al2O3-TS-1-graphene composite oxide is taken as the carrier; the specific surface area of the gasoline hydrorefining catalyst ranges from 250 to 500m2/g, the pore volume ranges from 0.5 to 0.8mL/g. The invention also relates to a preparation method of the gasoline hydrorefining catalyst. According to the preparation method, a molecular sieve is uniformly mixed with alumina and graphene, a nitric acid solution and an appropriate amount of water are added, and mixing kneading, strip extrusion, drying, and roasting are carried out so as to obtain the carrier of the gasoline hydrorefining catalyst; the carrier is subjected to dipping with a solution containing the heteropoly acid, and then drying and roasting are carried out so as to obtain the gasoline hydrorefining catalyst. The gasoline hydrorefining catalyst possesses a specific pore diameter, is large in pore volume, is high in hydrodesulfurization activity, and can be taken as a gasoline hydrorefining catalyst.

Description

technical field [0001] The invention relates to a gasoline hydrofinishing catalyst and a preparation method thereof, which are suitable for the gasoline hydrofinishing process in the petroleum refining field. Background technique [0002] At present, hydrodesulfurization is a main method to reduce the sulfur content in gasoline raw materials. It can simultaneously perform hydrodesulfurization, hydrodenitrogenation, olefin saturation and other reactions to produce National V gasoline or its blending components. [0003] In 2017, my country fully implemented the National V motor gasoline standard, and plans to implement the National VI motor gasoline standard in 2019. Compared with straight-run gasoline, catalytic gasoline and coker gasoline in gasoline raw materials have higher sulfur, nitrogen, and olefin content, and are more difficult to process. In order to meet the requirements of more stringent standards and to cope with the trend of inferior crude oil, the research an...

Claims

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Application Information

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IPC IPC(8): B01J29/89B01J31/16C10G45/08C10G45/04
CPCB01J29/89B01J2229/186C10G45/04C10G45/08C10G2300/1037
Inventor 徐铁钢孙发民马宝利王丹王磊张学佳宋金鹤方磊徐伟池纪魏谭明伟李实高晓宇田然王刚郭金涛郭立艳艾连锋李亮亮温广明
Owner PETROCHINA CO LTD
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