Hydrocarbon oil desulphurization adsorbing agent and use method thereof

A technology of adsorbent and hydrocarbon oil, which is applied in the direction of refined hydrocarbon oil and petroleum industry, etc., can solve the problem of low yield of hydrocarbon oil, and achieve the effects of high hydrocarbon oil yield, high adsorption desulfurization activity, and high adsorption desulfurization efficiency

Active Publication Date: 2012-11-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The existing adsorption desulfurization adsorbent containing molecular sieves can adsorb and desulfurize hydrocarbon oil under the condition of high temperature, and the yield of hydrocarbon oil is low

Method used

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  • Hydrocarbon oil desulphurization adsorbing agent and use method thereof
  • Hydrocarbon oil desulphurization adsorbing agent and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] 700 grams of ZSM-5 molecular sieves with an average particle size less than 5 μm (the average particle size of the molecular sieves of other embodiments are the same) (dry basis, silicon-aluminum atomic molar ratio is 100, specific surface area 550m 2 / g) was added to 1500 milliliters of aqueous solution containing 583 grams of zinc nitrate, and under stirring, ammonia water was added to a pH value of 7.5 ± 0.5 to obtain a colloid, which was left to age at room temperature for 3 hours and suction filtered, and washed with deionized water. The filter cake was dried at 150° C. for 4 hours, then roasted at 640° C. in air for 2 hours, then impregnated with 1000 ml of aqueous solution containing 122 grams of cobalt nitrate for 4 hours, then dried at 150° C. for 4 hours, and roasted at 640° C. in air for 2 hours. Adsorbent A is obtained.

[0029] The composition of the adsorbent A was 70% by weight of molecular sieve, 25% by weight of zinc oxide, and 5% by weight of cobalt ox...

example 2

[0031] ZSM-5 molecular sieve (dry basis, silicon aluminum atomic molar ratio is 300, specific surface area 430m 2 / g) mixed with pseudo-boehmite and kaolin for beating, and then spray-dried to make microspheres, wherein the content of alumina is 20% by weight, the content of kaolin is 30% by weight, and the content of molecular sieve is 50% by weight.

[0032] Take 500 grams of the above-mentioned microspheres and add them to 1500 milliliters of an aqueous solution containing 583 grams of zinc nitrate, add ammonia water under stirring until the pH value is 7.5 ± 0.5 to obtain a colloid, leave it to age at room temperature for 3 hours, then suction filter it, and use 5000 ml of deionized water Wash to remove nitrate ions, dry the resulting filter cake at 150°C for 4 hours, then roast in the air at 640°C for 2 hours, then impregnate three times with 3000 ml of aqueous solution containing 610 g of cobalt nitrate, each solution consumption is 1000 ml, Immerse for 4 hours, and afte...

example 3

[0035] 700 grams of average particle size less than 5tm ZSM-5 molecular sieve (same as Example 1) was added to 1500 milliliters of aqueous solution containing 698 grams of zinc nitrate, and ammonia was added under stirring until the pH value was 7.5 ± 0.5 to obtain a colloid, which was aged at room temperature Suction filtration after 3 hours, after washing with deionized water, the resulting filter cake was dried at 150° C. for 4 hours, and then roasted in air at 640° C. for 2 hours to obtain adsorbent C, which was composed of 70% by weight of molecular sieve and 30% by weight of zinc oxide. .

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Abstract

A spraytex desulfurization sorbent contains molecular sieve and metal oxide having the function of absorbing sulfur; wherein, the mol ratio between silicon atom and aluminium atom of the molecular sieve is 50-750, and the weight ratio between the molecular sieve and metal oxide having the function of absorbing sulfur is 45-98:2-55. The desulfurization sorbent has large capacity, and can be used for absorbing and decarbolizing spraytex, thus having high desulfurization efficiency and high yield of the spraytex.

Description

technical field [0001] The present invention relates to the refining of hydrocarbon oil with solid adsorbent, more specifically the present invention relates to the adsorption desulfurization of hydrocarbon oil. Background technique [0002] Sulfur in vehicle oils can cause serious air pollution. For this reason, various countries have formulated strict standards to limit the sulfur content in vehicle fuels. The sulfur content of gasoline (III) is not more than 500ppm (mass fraction), and the sulfur content of motor gasoline (III) is not more than 150ppm (mass fraction). [0003] At present, the methods for removing sulfur from automotive oil mainly include: catalytic hydrodesulfurization, catalytic cracking desulfurization, oxidative desulfurization, solvent extraction desulfurization, biological desulfurization, adsorption desulfurization, membrane desulfurization, and photocatalytic desulfurization. Among them, adsorption desulfurization is to achieve the purpose of redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G25/03
Inventor 王鹏陈振宇田辉平朱玉霞王振波徐莉孙言达志坚张久顺
Owner CHINA PETROLEUM & CHEM CORP
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