Petroleum hydrocarbon cracking catalys containing rare earth superstable Y-type zeolite

A cracking catalyst, a technology for petroleum hydrocarbons, applied in cracking, petroleum industry, catalytic cracking and other directions, can solve the problems such as the inability to effectively reduce the olefin content of catalytic gasoline, achieve good heavy oil cracking capacity, increase yield, and reduce the effect of olefin content

Active Publication Date: 2005-10-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method involves using an acid to further treat an ultrastable Y-type zeolite that has undergone high-temperature hydrothermal dealumination to carry out deep framework dealumination, and the unit cell constant of the obtained target product is lower than 2.419nm. Obviously, as a cracking catalyst active components, cannot effectively reduce the olefin content of catalytic gasoline

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Add 60 kg of decationized water, 3 kg of NH 4 Cl and 3 kilograms (dry basis) NaY zeolite (Qilu Petrochemical Company Catalyst Factory produces, NaY 2 O14 wt%, unit cell constant 2.465nm), carry out ion exchange at 90°C for 45 minutes, filter and wash with water, roast the filter cake at 600°C and 100% water vapor for 2 hours to prepare a baked NaHY zeolite M. Its composition is Na 2 O5.5 wt%, Al 2 o 3 23.4% by weight, SiO 2 %69.7% by weight, unit cell constant 2.455nm, relative crystallinity 78.2%.

[0049] Get 100 grams (dry basis) NaHY zeolite M and 1200 milliliters of decationized water to make a slurry, be warming up to 90 ℃, then add the mixed solution of 100 milliliters of chlorinated mixed rare earths and citric acid (containing 4 Gram C 6 h 8 o 7 ·H 2 O and 5.36 g RE 2 o 3 ), and reacted under these conditions for 45 minutes, filtered and washed with water, and the filter cake was roasted in air at 600°C for 2 hours to obtain a rare earth ultra-stable...

Embodiment 2

[0052] Preparation method is the same as example 1, and difference is that 100 milliliters of chlorinated mixed rare earths and the mixed solution of citric acid contain 8 grams of C 6 h 8 o 7 ·H 2 O, the rare earth ultra-stable Y-type zeolite was prepared, coded as B.

[0053] The chemical composition of B is shown in Table 1, and the main physical and chemical properties are shown in Table 2.

Embodiment 3

[0055] Preparation method is the same as example 1, and difference is that 100 milliliters of chlorinated mixed rare earths and the mixed solution of citric acid contain 12 grams of C 6 h 8 o 7 ·H 2 O, the rare earth ultrastable Y zeolite was prepared, coded as C.

[0056] The chemical composition of C is shown in Table 1, and the main physical and chemical properties are shown in Table 2.

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Abstract

This invention discloses a petroleum hydrocarbon cracking catalyst, including Y-shaped zeolite, clay and inorganic oxide agglomerant. The characteristic is that the Y-shaped zeolite contains 30-100 weight % rare earth super-stable Y-shaped zeolite, and the preparation method of the rare earth super-stable Y-shaped zeolite includes that the mixing solution of rare earth salt and citric acid or mixing agent of inorganic ammonium salt, rare earth salt and citric acid treat the zeolite. This catalyst can effectively decrease the content of olefin hydrocarbon in catalyzing cracking petroleum and increase the yield of light petroleum.

Description

technical field [0001] The present invention relates to a petroleum hydrocarbon cracking catalyst, more specifically, relates to a petroleum hydrocarbon cracking catalyst containing rare earth ultrastable Y-type zeolite. Background technique [0002] As environmental protection has increasingly stringent quality requirements for gasoline products, gasoline has developed from unleaded gasoline to new formula gasoline. In the standards of newly formulated gasoline, on the one hand, it is required to limit the vapor pressure and benzene content of gasoline, and on the other hand, it will gradually limit the content of olefin components. For example, the Class II gasoline standard in the World Fuel Oil Specification requires that the olefin content in gasoline components be less than 20% by volume. China's gasoline standards implemented in the three major cities of Beijing, Shanghai and Guangzhou on July 1, 2002 require that the olefin content in gasoline components be less tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G11/05
Inventor 蒋文斌龙军田辉平宋海涛陈蓓艳何鸣元王振波范玉华
Owner CHINA PETROLEUM & CHEM CORP
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