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Gasoline reforming catalyst and preparation method and application thereof

A catalyst and gasoline technology, which is applied in the field of gasoline upgrading catalyst and its preparation, can solve the problems of gasoline difficulties and achieve the effect of increasing the octane number

Inactive Publication Date: 2009-12-30
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the disadvantage that it is difficult to process gasoline with 1-2 volume % of benzene in the prior art, and proposes a gasoline reforming catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Dissolve 42 grams of zinc nitrate in deionized water, then evenly impregnate this solution on 450 grams of rare earth Y-type molecular sieve (produced by Changling Catalyst Factory) and stir evenly, put it in an oven and bake at 180 ° C for 3 hours, take out Then put it into a muffle furnace for roasting, and roast at 550° C. for 2.5 hours to make a metal oxide-modified molecular sieve with a total weight of 462 grams, wherein the content of the modified metal oxide is 2.5%.

[0018] After mixing 1375 grams of kaolin (produced by Suzhou China Kaolin Company), 1125 grams of self-made aluminum sol solution (concentration is 20w%) and 462 grams of molecular sieves prepared above, add water to make a slurry, and prepare the process steps of conventional microspherical catalysts such as spray drying and roasting A gasoline reforming catalyst with good physical properties is prepared. The physical properties of the catalyst are listed in Table 1.

[0019] Table 1 Example 1 c...

Embodiment 2

[0022] According to Example 1, the difference is that the molecular sieve used for metal modification is ZSM-5 molecular sieve (purchased).

Embodiment 3

[0024] According to Example 1, the difference is that the molecular sieve used for metal modification is a rare earth HY type molecular sieve (produced by Changling Catalyst Factory).

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PUM

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Abstract

The invention relates to a gasoline reforming catalyst, which is mainly used for solving the problem that gasoline with benzene content of 1-2 volume% is difficult to process in prior art. The catalyst comprises the following components: 32-79wt% of kaolin, 15-50wt% of metal modified Y type or ZSM-5 molecular sieve and 6-18wt% of binder; wherein, the kaolin is commercial kaolin; Y type molecular sieve is rare earth Y type molecular sieve or rare earth hydrogen Y type molecular sieve; the modified metal is one or more of copper, ferrum, zinc, cobalt, titanium, manganese and molybdenum, and the modified metal content in the molecular sieve is 1-6wt%; the binder is common binder in the field, such as silica sol or silica and alumina sol and the like, and the benzene content of the gasoline with the benzene content of 1-2 volume% can be reduced by more than 50 volume% and the benzene content is no more than 1 volume% by using the catalyst. The invention also provides a preparation method and an application of the catalyst.

Description

technical field [0001] The invention relates to a gasoline upgrading catalyst and its preparation method and application, in particular to a catalyst capable of effectively reducing the benzene content in low-quality gasoline, and the preparation method and application of the catalyst. Background technique [0002] With the increasing awareness of environmental protection, the national environmental protection department has increasingly strict requirements on the quality of finished gasoline. The "Control Standards for Hazardous Substances in Motor Gasoline" promulgated by the State Environmental Protection Administration of China has been implemented nationwide since July 1, 2003. This standard requires that the sulfur content of motor gasoline is less than 0.08% by weight and the olefin content is not more than 35% by volume. , the contents of aromatics and benzene are lower than 40% by volume and 2.5% by volume, respectively. After July 1, 2005, motor gasoline has begun...

Claims

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Application Information

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IPC IPC(8): B01J29/08B01J29/40B01J29/14B01J29/46C10G29/20
Inventor 闫鸿飞孟凡东王龙延陈曼桥武立宪王文柯汤海涛张亚西樊麦跃陈章淼
Owner CHINA PETROCHEMICAL CORP