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A kind of vulcanization method of adsorbent

An adsorbent and sulfidation treatment technology, applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of slow measurement process, difficult to meet industrial needs, etc., and achieve the effect of simple operation

Active Publication Date: 2019-11-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the determination process is often slow and difficult to meet the existing industrial needs

Method used

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  • A kind of vulcanization method of adsorbent
  • A kind of vulcanization method of adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Put 2g of FCAS-R09 fresh adsorbent in a small fixed-bed reactor, and firstly treat the fresh adsorbent under the conditions of pressure 2.5 MPa, hydrogen (hydrogen reduction gas, the same below) 16L / h and a temperature of 400°C. Hydrogen reduction treatment was performed for 2 hours to obtain the hydrogen reduction adsorbent.

[0053] Using CS with a mass fraction of sulfur of 1% 2 Cyclohexane solution is used as the sulfur-containing material, and when the reaction pressure is 2.5 MPa, the hydrogen gas (hydrogen sulfide gas, the same below) is 16L / h, and the weight hourly space velocity of the sulfur-containing material is 5h -1 1. Under the reaction condition of 300° C., the hydrogen-reducing adsorbent was hydrosulfurized for 4 hours to obtain the hydrogen-sulfide adsorbent.

[0054] After the hydrosulfide treatment, the hydrosulfide adsorbent obtained was subjected to hydrogen conversion treatment at 350° C. for 2 h in a 16 L / h hydrogen gas (hydrogen conversion gas,...

Embodiment 2

[0058] Put 2g of industrial equilibrium adsorbent S1 in a small fixed-bed reactor, first roast and regenerate industrial equilibrium adsorbent S1, the regeneration conditions are: regeneration stage 1, regeneration temperature is 430°C, pressure is normal pressure, regeneration gas is air Mixed gas with nitrogen (8L / h air + 8L / h nitrogen), regeneration for 2h; regeneration stage 2, regeneration temperature is 480°C, pressure is 0.1 MPa, regeneration gas is a mixture of air and nitrogen (12L / h air +4L / h nitrogen), regeneration for 2h; regeneration stage 3, regeneration temperature is 530°C, pressure is 0.1MPa, regeneration gas is 16L / h air, regeneration is 2h.

[0059] The regenerated industrial equilibrium adsorbent S1 was subjected to hydrogen reduction treatment for 0.5h under the conditions of pressure 2.5 MPa, hydrogen gas 16L / h, and temperature 300°C to obtain hydrogen reduction adsorbent S1.

[0060] Then use CS with 1% sulfur mass fraction 2 The cyclohexane solution of...

Embodiment 3

[0065] Put 2g of industrial equilibrium adsorbent S2 in a small fixed-bed reactor, and first roast and regenerate industrial equilibrium adsorbent S2. The regeneration conditions are: regeneration stage 1, regeneration temperature is 430 ° C, pressure is 0.5 MPa, and regeneration gas is Mixed gas of air and nitrogen (8L / h air + 8L / h nitrogen), regeneration 2h; regeneration stage 2, regeneration temperature is 480 ° C, pressure is 0.5 MPa, regeneration gas is a mixed gas of air and nitrogen (12L / h Air + 4L / h nitrogen), regeneration for 2h; regeneration stage 3, regeneration temperature is 530°C, pressure is 0.5MPa, regeneration gas is 16L / h air, regeneration is 2h.

[0066] The regenerated industrial equilibrium adsorbent S2 was subjected to hydrogen reduction treatment for 2 hours under the conditions of pressure 1.5 MPa, hydrogen gas 32L / h, and temperature 400°C to obtain hydrogen reduction adsorbent S2.

[0067] Then use the reformed gasoline solution of dimethyl disulfide w...

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Abstract

The invention discloses an adsorbent sulfuration method. The method comprises: performing hydrogen-present reduction, hydrogen-present sulfuration and hydrogen-present conversion in sequence to a to-be-sulfurated adsorbent to obtain a hydrogen-present conversion adsorbent. The method is simple and easy to operate. Nickel and zinc components in the to-be-sulfurated adsorbent are sulfurated to trinickel disulfide and zinc sulfide, and then the activity of the adsorbent is calculated.

Description

technical field [0001] The invention relates to a sulfuration method of an adsorbent. Background technique [0002] As people pay more and more attention to environmental protection, the restrictions on the sulfur content in light hydrocarbons used as fuels are becoming more and more stringent. Taking gasoline as an example, the European Union has stipulated that the sulfur content should not exceed 50 μg / g in 2005, and the Euro V gasoline standard planned to be implemented in 2010 stipulates that the sulfur content should be less than 10 μg / g. China's National III standard, which was implemented on December 31, 2009, stipulates that the sulfur content of gasoline is not greater than 150 μg / g, and plans to promote the implementation of the National IV standard of gasoline sulfur content of not greater than 50 μg / g in 2014. [0003] The S-Zorb gasoline adsorption desulfurization process has been rapidly promoted in China due to its characteristics of high desulfurization dep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G25/00
CPCC10G25/003
Inventor 王文寿毛安国刘宪龙徐莉刘玉良
Owner CHINA PETROLEUM & CHEM CORP
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