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Thiols conversion catalyst and preparation method thereof

A technology of catalyst and mercaptan, which is applied in the field of mercaptan conversion catalyst and its preparation, can solve the problems of high cost, low sulfur capacity, complicated preparation method, etc., and achieve the effects of strong adaptability, low equipment investment cost and simple process

Active Publication Date: 2012-09-05
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sweetening catalysts disclosed in the above-mentioned patent documents, due to the limitation of the loading amount of metal oxides, have a low sulfur capacity, generally 2%-8%, and the above-mentioned catalysts must be roasted under a protective atmosphere during the preparation process. , its preparation method is complex and costly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (a) Mix the concentrated ammonia solution with a density of 0.95g / ml and a volume of 500ml with 300ml of DMF solution, then add 1.3g of sulfonated cobalt phthalocyanine, and add water to prepare 1000ml of a soluble cobalt salt solution of 0.011g / 100ml;

[0018] (b) immersing 1000g gac in the soluble cobalt salt solution prepared in step (a) for 20 hours;

[0019] (c) soaking the gac obtained in step (b) in a 6% NaOH solution by weight for 10 hours;

[0020] (d) Dry the half-cost product obtained in step (c) and dry it at 50° C. for 5 hours to obtain the mercaptan conversion catalyst A of the present invention. The weight percentage of its product components is shown in Table 1.

Embodiment 2

[0022] (a) Mix the concentrated ammonia solution with a density of 0.95g / ml and a volume of 500ml with 300ml of DMF solution, then add 1.95g of cobalt sulfonated phthalocyanine, and add 1000ml of 0.015g / 100ml soluble cobalt salt solution by adding water;

[0023] (b) immersing 1000g gac in the soluble cobalt salt solution prepared in step (a) for 22 hours;

[0024] (c) soaking the gac obtained in step (b) in a 10% NaOH solution by weight for 15 hours;

[0025] (d) Dry the half-cost product obtained in step (c) and dry it at 100° C. for 10 hours to obtain the mercaptan conversion catalyst B of the present invention. The weight percentage of its product components is shown in Table 1.

Embodiment 3

[0027] (a) Mix the concentrated ammonia solution with a density of 0.95g / ml and a volume of 500ml with 300ml of DMF solution, then add 1.56g of cobalt sulfonated phthalocyanine, and add 1000ml of 0.012g / 100ml soluble cobalt salt solution by adding water;

[0028] (b) immersing 1000g gac in the soluble cobalt salt solution prepared in step (a) for 22 hours;

[0029] (c) soaking the gac obtained in step (b) in a 10% NaOH solution by weight for 15 hours;

[0030] (d) Dry the half-cost product obtained in step (c) and dry it at 100° C. for 10 hours to obtain the mercaptan conversion catalyst C of the present invention. The weight percentage of its product components is shown in Table 1.

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Abstract

The invention relates to a thiols conversion catalyst and a preparation method thereof. Active carbon is used as a carrier in the catalyst, the carrier is immersed in cobalt element, a section of carrier after immersing is immersed in a moderate amount of alkaline solution again, and after dying the catalyst of the invention is obtained. The thiols conversion catalyst of the invention has the advantages of good adaptability of air source, high sulfur capacity and thiols conversion rate, simple preparation technology, less equipment investment cost and low production cost.

Description

technical field [0001] The invention relates to a mercaptan conversion catalyst and a preparation method thereof, belonging to the field of organic sulfur removal in petrochemical industry. Background technique [0002] The sulfides in industrial gas sources are mainly H 2 S form exists, and there are also some organic sulfur, such as COS, CS 2 , Thiol. for H 2 For the removal of S, there have been many research works in the past, and various mature desulfurization technologies including wet and dry methods have been used in industrial applications; for the removal of organic sulfur, especially for the removal of mercaptans There are still many problems. [0003] Traditional industrial gas mercaptan removal technologies usually use metal oxides as catalysts to oxidize mercaptans to disulfides, and then use condensation, absorption, adsorption and other methods to remove disulfides. Investment and operating costs. [0004] Another type of mercaptan removal technology ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/78B01D53/48B01D53/86
Inventor 刘玉珍李景斌
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD