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Catalytic cracking co-catalyst for high yield diesel oil and its preparing method

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 good coke selectivity

Active Publication Date: 2008-08-27
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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  • Catalytic cracking co-catalyst for high yield diesel oil and its preparing method
  • Catalytic cracking co-catalyst for high yield diesel oil and its preparing method
  • Catalytic cracking co-catalyst for high yield diesel oil and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of extraction product microspheres:

[0039] Add water to 1Kg (dry basis) kaolin from Suzhou, 0.1kg pseudoboehmite (calculated as alumina) and 8% water glass (calculated as silicon dioxide) to make a slurry, and spray to obtain 0.9Kg of spray microspheres. The sprayed microspheres were roasted in a muffle furnace at 920° C. for 3 hours to obtain roasted microspheres, which contained about 8% mullite. While stirring, 60 g of sodium hydroxide, 600 mL of deionized water, and 500 g of calcined microspheres were successively put into a stainless steel reactor, and the temperature was raised to 90° C. for 2 hours. 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.

[0040] (2) post-treatment of extraction product to prepare co-catalyst:

[0041] Add 500ml of 1mol / l hydrochloric acid solution in a stainless steel kettle,...

Embodiment 2

[0046] (1) Preparation of extraction product microspheres:

[0047]2Kg (dry basis) kaolin produced in Suzhou, 0.4kg pseudoboehmite (calculated as alumina), 15% water glass and water were made into slurry, and 1.9Kg of spray microspheres were obtained in spray molding. The sprayed microspheres were roasted in a muffle furnace at 900°C for 2 hours to obtain roasted microspheres, which contained about 5% mullite. In a stirring state, 800 g of sodium hydroxide, 5 L of deionized water, and 1 kg of calcined microspheres were sequentially put into a stainless steel reactor, and the temperature was raised to 80° C. for 0.5 hours to react. After the reaction, the mother liquor was removed by filtration, washed with deionized water, and dried by filtration to obtain microspheres of the extraction product.

[0048] (2) post-treatment of extraction product to prepare co-catalyst:

[0049] Add 1l of 0.5mol / l hydrochloric acid solution in a stainless steel kettle, put in 200g of the extra...

Embodiment 3

[0054] (1) Preparation of extraction product microspheres:

[0055] 1.5Kg (dry basis) kaolin produced in Suzhou, 0.075kg pseudo-boehmite (calculated as alumina) and 12% water glass (calculated as silicon dioxide) are added with water to make a slurry, and spray molding obtains 1.2Kg of spray micro ball. The sprayed microspheres were roasted in a muffle furnace at 950° C. for 1 hour to obtain the roasted microspheres, which contained about 10% mullite. In a stirring state, 100 g of sodium hydroxide, 500 mL of deionized water, and 500 g of roasted microspheres were sequentially put into a stainless steel reactor, and the temperature was raised to 80° C. for 3.5 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.

[0056] (2) post-treatment of extraction product to prepare co-catalyst:

[0057] Add 100ml of 3mol / l hydrochloric acid sol...

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Abstract

The present invention is catalytically cracking co-catalyst for raising diesel oil yield and its preparation process. The co-catalyst is prepared with sprayed microballoon containing kaolin, pseudo boehmite and water galss, and through high temperature roasting over 900 deg.c, extraction with sodium hydroxide or other strong alkali to form pore channels, and final supporting phosphorus and RE oxide. The co-catalyst contains phosphorus in 1-3.5 wt%, RE oxide in 1-5 wt%, no zeolite component and sodium oxide less than 0.6 wt%. Adding certain amount of the co-catalyst into FCC catalyzing apparatus can raise diesel oil yield, improve product distribution and raise the utilization rate of available catalyst.

Description

technical field [0001] The invention relates to a catalytic cracking co-catalyst with the function of producing more diesel oil and a preparation method thereof. Background technique [0002] Compared with gasoline engines, diesel engines have high thermal efficiency and low fuel consumption. Compared with gasoline engines of the same power, diesel engines can save fuel by 16% in terms of mass. Diesel vehicles have become an effective way to save energy. Therefore, in recent years, diesel vehicles have developed rapidly worldwide. The impact of this change on the oil industry is a sharp rise in diesel demand. For major refineries, it is imperative to increase the diesel yield of FCC unit. Therefore, the development of FCC catalysts with the function of producing diesel has become the focus of attention of the 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 Academy of Pet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/02
Inventor 高雄厚段长艳庞新梅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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