Preparation method of FCC gasoline desulfurization agent composition

A technology for catalytic cracking gasoline and desulfurization catalysts, applied in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problems of poor component uniformity and small specific surface area, and achieve lower calcination temperature, large pore volume, and saving The effect of equipment investment

Active Publication Date: 2015-04-29
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] The invention provides a preparation method of catalytic cracking gasoline desulfurization catalyst composition, which solves the problems of poor homogeneity of zinc-aluminum spinel product components and small specific surface area in the traditional synthesis method; and the method provided by the invention does not need to add surface The activator and precipitant do

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  • Preparation method of FCC gasoline desulfurization agent composition
  • Preparation method of FCC gasoline desulfurization agent composition

Examples

Experimental program
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Example Embodiment

[0047] Example 1

[0048] Dissolve 2009.4g zinc nitrate in 1.8L tap water, dissolve it at 50℃, and stir for 10 minutes; add 1075.2g macroporous pseudo-thin, stir for 10 minutes; add 100g polystyrene and 50g activated carbon as pore expander, stir, and stir at 85℃ Aging for 30 minutes, drying at 80°C overnight, and baking at 650°C for 3 hours. A zinc aluminum spinel sample A is obtained. Specific surface area 271m 2 / g, pore volume 1.1cc / g, particle size 26nm.

Example Embodiment

[0049] Example 2

[0050] Dissolve 1694.2g zinc nitrate in 1.3L tap water, dissolve at 50°C, and stir for 10 minutes; add 906.2g macroporous pseudo-thin, stir for 10 minutes; add 60g starch as a pore expander, stir and age at 80°C for 60 minutes, 80 Dry overnight at ℃, roast at 650℃ for 3h. A zinc aluminum spinel sample B is obtained. Specific surface area 148m 2 / g, pore volume 0.71cc / g, particle size 27nm.

Example Embodiment

[0051] Example 3

[0052] Dissolve 1489.3g zinc sulfate in 2.8L tap water, dissolve at 50°C, and stir for 10 minutes; add 752.6g of macroporous pseudo-thin, stir for 10 minutes; add 100g coconut shell carbide as a pore expander, stir, and age at 80°C for 60 Dry at 80°C overnight, and fire at 750°C for 1 hour. The zinc aluminum spinel sample C is obtained. Specific surface area 117m 2 / g, pore volume 0.6cc / g, particle size 33nm.

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Abstract

The invention discloses a preparation method of an FCC gasoline desulfurization agent composition. The catalyst is prepared by the following steps of mixing and stirring water, a binding agent, an aluminum source, clay, a molecular sieve and zinc aluminate gahnite so as to form slurry, and then spraying drying so as to obtain the catalyst. The catalyst has an excellent function of reducing the sulfur content of gasoline, is relatively large in pore volume and smooth in duct, and is beneficial to the dispersion of a sulfide; as an active center, zinc aluminate gahnite can adsorb the sulfide of L alkali character, and is difficult to lose, and is better in stability when compared with zinc oxide. The catalyst can be doped with a conventional FCC catalyst, and also can be independently applied to the catalytic cracking technological process.

Description

technical field [0001] The invention relates to a preparation method of a catalyst composition, in particular to a preparation method of a catalytic cracking (FCC) gasoline desulfurization catalyst composition. Background technique [0002] In recent years, with the rapid development of the economy, the consumption of automobiles and petroleum has increased rapidly. People have paid more and more attention to the environmental pollution caused by automobile exhaust emissions. It is imperative to improve the quality of refined oil and reduce environmental pollution. At present, the major developed countries in the world strictly limit the sulfur content of motor gasoline. The world fuel specification class IV motor gasoline standard requires the sulfur content to be less than 10 μg / g; the Euro IV motor gasoline emission standard requires the gasoline sulfur content to be less than 50 μg / g. Since January 1, 2010, my country has implemented the No. III standard for motor gasoli...

Claims

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Application Information

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IPC IPC(8): B01J29/80C10G11/05
Inventor 郑云锋高雄厚潘志爽孙书红刘从华张海涛蔡进军李雪礼黄校亮黄世英高杜娟李荻段宏昌胡清勋
Owner PETROCHINA CO LTD
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