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Assisted catalyst for hydrocarbon catalyzing cracking reacting and preparation process thereof

A catalytic cracking and co-catalyst technology, applied in catalytic cracking, cracking, petroleum industry and other directions, to achieve the effect of improving utilization rate, good activity stability, and improving diesel yield

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

[0036] (1) Preparation of extraction product microspheres:

[0037] Add 1Kg (dry basis) of kaolin from Suzhou to 242g of aluminum sol, add water to make a slurry, and spray to obtain 0.98Kg of spray microspheres. The sprayed microspheres were roasted in a muffle furnace at 1100°C for 2 hours to obtain roasted microspheres, which contained about 8% mullite. While stirring, 72g of sodium hydroxide, 600mL of deionized water, and 500g of roasted microspheres were successively put into a stainless steel reactor, and the temperature was raised to 90°C for 2 hours to react. After the reaction is completed, the mother liquor is removed by filtration, washed with hot deionized water until pH = 7, filtered and dried to obtain microspheres of the extraction product.

[0038] (2) post-treatment of extraction product to prepare co-catalyst:

[0039] Add 0.5 mol / l hydrochloric acid solution 11 into a stainless steel kettle, put in 200 g of the extracted product prepared by the above metho...

Embodiment 2

[0044] (1) Preparation of extraction product microspheres:

[0045] 1Kg (dry basis) of kaolin produced in Suzhou was added to 724g of aluminum sol and water to make a slurry, and sprayed to obtain 1.6Kg of spray microspheres. The sprayed microspheres were roasted in a muffle furnace at 1070°C for 2 hours to obtain roasted microspheres, which contained about 3% mullite. While stirring, 200 g of sodium hydroxide, 1.2 L of deionized water, and 400 g of calcined microspheres were sequentially put into a stainless steel reactor, and the temperature was raised to 95° C. for 1 hour. After the reaction is completed, the mother liquor is removed by filtration, washed with deionized water, and dried by filtration to obtain microspheres of the extraction product.

[0046] (2) post-treatment of extraction product to prepare co-catalyst:

[0047] Add 300ml of 3mol / l hydrochloric acid solution into a stainless steel kettle, add 100g of the extracted product prepared by the above method unde...

Embodiment 3

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

[0054] Add 1Kg (dry basis) of kaolin from Suzhou to 485g of aluminum sol, add water to make a slurry, and spray to obtain 1.2Kg of spray microspheres. The sprayed microspheres were roasted in a muffle furnace at 970° C. for 2 hours to obtain roasted microspheres, which contained about 5% mullite. While stirring, 250 g of sodium hydroxide, 800 mL of deionized water, and 500 g of calcined microspheres were successively put into a stainless steel reactor, and the temperature was raised to 80° C. for 3 hours. After the reaction is finished, the mother liquor is removed by filtration, washed with hot deionized water until pH=7, filtered and dried to obtain microspheres of the extraction product.

[0055] (2) post-treatment of extraction product to prepare co-catalyst:

[0056] Add 0.5mol / l hydrochloric acid solution 0.51 in a stainless steel kettle, put in 200g of the extraction product prepared by the above method unde...

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PUM

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Abstract

An auxiliary catalyst is used in the catalytic cracking reaction of hydrocarbon and its preparation method. The main material of the auxiliary catalyst is kaolin and aluminum sol 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 invention relates to a catalyst co-catalyst for catalytic cracking of hydrocarbons and a preparation method thereof, more specifically, a co-catalyst which is helpful for catalytic cracking of hydrocarbons to produce diesel oil and a preparation method thereof. Background technique [0002] In today's world oil market, the outstanding contradiction between the supply and demand of diesel oil has caused the refining industry to pay more attention to improving the yield of diesel oil. Refineries are in urgent need of technologies that can increase diesel yields. The use of FCC catalysts or additives with the function of producing diesel oil has become a commonly used method because of its low investment, quick effect, and simplicity. The research and development of this type of catalyst 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-produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/02
Inventor 段长艳刘宏海庞新梅张莉高雄厚王宝杰赵连鸿刘蕴恒马建刚
Owner PETROCHINA CO LTD
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