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
13 Cites 12 Cited by

AI-Extracted Technical Summary

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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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.

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

Examples

  • Experimental program(5)
  • Comparison scheme(5)

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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PUM

PropertyMeasurementUnit
Specific surface area271.0m²/g
Pore volume1.1cc/g
Particle size26.0nm
tensileMPa
Particle sizePa
strength10

Description & Claims & Application Information

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