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Assisted catalyst for catalyzing cracking and preparation process thereof

A co-catalyst and catalytic cracking technology, which is applied in catalytic cracking, cracking, petroleum industry, etc., to achieve the effects of increasing diesel yield, strong resistance to heavy metals, and low cost

Active Publication Date: 2007-12-19
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This additive has a certain effect in cracking heavy oil and increasing the yield of diesel oil, but it needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Preparation of extraction product microspheres:

[0038] 1Kg (dry basis) of kaolin from Suzhou, 80ml of water glass and 27g of sodium hydroxide were added to water to make a slurry, and spray-molded to obtain 0.9Kg of spray microspheres. The sprayed microspheres were calcined in a muffle furnace at 930° C. for 3 hours to obtain calcined microspheres, which contained about 8% of mullite. In a stirring state, 60 g of sodium hydroxide, deionized water, and 500 g of calcined microspheres were sequentially put into a stainless steel reactor, and the temperature was raised to 90° C. to react for 1.5 hours. After the reaction, the mother liquor was removed by filtration, washed with hot deionized water to pH=7, filtered and dried to obtain the extraction product microspheres.

[0039] (2) Preparation of cocatalyst after extraction product:

[0040] 500ml of 1mol / l hydrochloric acid solution was added to the stainless steel kettle, 100g of the extraction product prepared ...

Embodiment 2

[0045] (1) Preparation of extraction product microspheres:

[0046]2Kg (dry basis) of kaolin from Suzhou, 160ml of water glass, 54g of sodium hydroxide and water were made into slurry, and 1.9Kg of spray microspheres were obtained by spray molding. The sprayed microspheres are calcined in a muffle furnace at 900° C. for 4 hours to obtain calcined microspheres, which contain about 5% of mullite. In a stirring state, 880 g of sodium hydroxide, 5 L of deionized water, and 1.1 kg of calcined microspheres were sequentially put into a stainless steel reactor, and the temperature was raised to 80° C. to react for 1 hour. After the reaction, the mother liquor was removed by filtration, washed with deionized water, filtered and dried to obtain the extracted product microspheres.

[0047] (2) Preparation of cocatalyst after extraction product:

[0048] Add 1 liter of 0.5 mol / l hydrochloric acid solution to the stainless steel kettle, add 200 g of the extraction product prepared by the...

Embodiment 3

[0053] (1) Preparation of extraction product microspheres:

[0054] 1.5Kg (dry basis) of kaolin from Suzhou, 120ml of water glass and 41g of sodium hydroxide were added to water to make a slurry, and spray-molded to obtain 1.2Kg of spray microspheres. The sprayed microspheres are calcined in a muffle furnace at 980 DEG C for 1 hour to obtain calcined microspheres, which contain about 10% of mullite. In a stirring state, 100 g of sodium hydroxide, 500 mL of deionized water, and 500 g of calcined microspheres were sequentially put into a stainless steel reactor, and the temperature was raised to 80° C. to react for 3 hours. After the reaction, the mother liquor was removed by filtration, washed with hot deionized water to pH=7, filtered and dried to obtain the extraction product microspheres.

[0055] (2) Preparation of cocatalyst after extraction product:

[0056] Add 100ml of 1.5mol / l hydrochloric acid solution to the stainless steel kettle, put in 100g of the extraction pro...

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PUM

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Abstract

A fecund diesel fuel catalytic cracking auxiliary catalyst and its preparation method. The main component material of the auxiliary catalyst is kaolin spray micro balloons, which are calcined at the high temperature of 900DEG C, then the auxiliary catalyst is extracted to form the hole by the strange alkali such as NaOH, at last the phosphate and rare earth are loaded. This auxiliary catalyst doesn't contain any component of zeolite, and the NaCl is lower than 0.6 %, at the same time the phosphate and oxide rare earth is 1-3.5% and 1-5% according to the percent of weight. The addition of this auxiliary catalyst can increase the productive rate of the diesel fuel in FCC catalytic device, and improve the distribution of the product, increase the utilization of the existing catalyst without change of the catalyst used in the original oil refining device. Otherwise the preparation technology of auxiliary catalyst is simple, and the cost is low.

Description

technical field [0001] The present invention relates to a catalytic cracking co-catalyst and a preparation method thereof, more particularly, to a co-catalyst with the function of increasing diesel production and a preparation method thereof. Background technique [0002] In today's world oil market, the prominent contradiction between diesel supply and demand has led to the oil refining industry's emphasis on improving diesel yield. Refiners desperately need technologies that can increase diesel yields. The use of FCC catalysts or additives with prolific diesel functions has become a commonly used method because of its low investment, quick effect, and simplicity. The research and development of such catalysts has also become a hot spot in the catalyst industry. [0003] At present, the domestic multi-diesel catalysts are mainly MLC-500, DMC-2, CC-20D and other multi-diesel catalysts developed by the Chinese Academy of Sciences, as well as the Convert developed by the fore...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/02
Inventor 段长艳庞新梅高雄厚刘宏海张莉王宝杰赵连鸿刘蕴恒马建刚
Owner PETROCHINA CO LTD
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