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Method for preparing desulfurizer

A desulfurizing agent and powder technology, which is applied in the field of preparation of gasoline desulfurization products to achieve the effect of high sulfur capacity and large desulfurization depth

Inactive Publication Date: 2014-03-19
GUANGDONG UNIV OF EDUCATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the prior art such as insufficient desulfurization depth of desulfurizer, low sulfur capacity of adsorbent, and poor regeneration performance, the present invention provides a The preparation method of adsorption desulfurization agent, which uses nano-rare earth doped mesoporous molecular sieve as the main body, assembles metal oxide guest molecules into the surface and pores of nano-molecular sieves, and prepares a composite mesoporous molecular sieve metal oxide high-efficiency selective adsorbent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] One, the preparation of adsorption desulfurizer of the present invention

[0018] Eu 2 o 3 The powder is dissolved in an appropriate amount of concentrated nitric acid, and the excess nitric acid is evaporated by heating. After the reaction product was dissolved in absolute ethanol, it was uniformly mixed with an appropriate amount of ethyl orthosilicate (w(Si)=28.4%) to obtain an organic phase solution (wherein Eu:Si=1:10). Carefully pour the organic phase solution over 1.2% trimethylhexadecylammonium bromide NH 3 -NH 4 NO 3 On the aqueous phase solution of the solution (pH: 9.5), it can be observed that a white precipitate is slowly produced, and the reaction proceeds at the interface of the two phases. Stand at room temperature for 48h until the reaction is complete. The resulting solid product was suction filtered, washed with methanol, placed in a muffle furnace, calcined at 800° C. for 5 h, and cooled to obtain a white powder.

[0019] TiCl 4 Added dropwis...

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Abstract

In order to solve the problems of inadequate desulfurization depth, low sulfur capacity of a sorbent, poor regeneration performance, and the like of a desulfurizer existing in the prior art, the invention provides a preparation method of a desulfurizer. The method uses a nano-rare earth doped mesoporous molecular sieve as a main body, assembles metal-oxide guest molecules in the surface of the nano molecular sieve and a porous channel and prepares a high-selectivity sorbent of mesoporous molecular sieve metal oxide. The adsorption desulfurizer has large desulfurization depth, and the sorbent has high sulfur capacity and can reuse by simple heating desorption activation regeneration.

Description

technical field [0001] The invention relates to a preparation method of a gasoline desulfurization product, in particular to a preparation method of a desulfurizer which utilizes molecular sieves to effectively absorb non-single sulfur components in gasoline. Background technique [0002] The sulfur-containing exhaust gas produced after the combustion of organic sulfides in gasoline has caused serious harm to the environment. To solve the problem of automobile exhaust pollution to the environment, the fundamental method is to improve the fuel production technology from the source, that is, to reduce the sulfur content in gasoline to produce clean gasoline with low sulfur content. [0003] In addition to catalytic hydrofining, some non-hydrogenation technologies are currently used in the refining industry, such as gasoline and diesel adsorption desulfurization technology, extraction desulfurization technology and biological desulfurization technology. There is a wide space ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/10
Inventor 尹伟
Owner GUANGDONG UNIV OF EDUCATION