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Catalytic cracking of organic compounds, using modified y zeolite

An organic compound, catalytic cracking technology, used in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve problems such as dry gas increase

Inactive Publication Date: 2015-08-05
CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS (CSIC) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution causes a significant increase in gaseous products and especially the undesirable dry gas

Method used

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  • Catalytic cracking of organic compounds, using modified y zeolite
  • Catalytic cracking of organic compounds, using modified y zeolite
  • Catalytic cracking of organic compounds, using modified y zeolite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: the preparation of modified USY type zeolite

[0036] 30 g of CBV300 (Zeolyst International, silica:alumina ratio 5.1:1) was mixed with 14.4 g H 4 EDTA at 450cm 3 The solutions in distilled water were contacted and stirred vigorously at 100 °C for 24 h. The solids were then separated from the solution using standard procedures: the suspension was cooled, filtered, washed with distilled water and dried overnight at 65°C.

[0037] Make 20g of the obtained solid at 65°C, 2.4g NaOH at 600cm 3 The solution in distilled water was subjected to alkali treatment for 30 minutes under vigorous stirring, the resulting solid was separated from the solution according to the procedure described in the previous paragraph, and 15 g of this solid was treated with 9.2 g of NaH at 100 °C under vigorous stirring. 2 EDTA at 225cm 3 The solution in distilled water was treated for 6 hours. Finally, the solid was separated from the liquid, and in 0.1M NH 4 NO 3 The solution...

Embodiment 2

[0038] Example 2: Hydrothermal treatment of the modified zeolite.

[0039] The modified zeolite obtained according to the method described in Example 1 was calcined in a furnace at 750° C. for 5 hours in a neat powder form under a 100% steam atmosphere.

Embodiment 3

[0040] Example 3: Exchange of the modified zeolite with RE and hydrothermal treatment of the modified zeolite exchanged with RE.

[0041] The modified zeolite obtained according to the method described in Example 1 utilizes 0.1M RECl 3 The aqueous solution was subjected to an ion exchange process at 80°C for 2h under vigorous stirring and reflux conditions. The weight ratio of solution to zeolite used was 10. The solid was then isolated by filtration, washed with deionized water until the chloride was completely removed, and dried overnight at 100°C. The obtained solid was dried in an oven at 500° C. for 3 hours. This procedure was repeated a second time to obtain a final solid with an RE content of 3.5% by weight relative to REO. Finally, the resulting solid was calcined in a furnace at 800° C. for 5 hours in the form of a neat powder under a 100% steam atmosphere.

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Abstract

The present invention relates to a method in the absence of hydrogen for the catalytic cracking of organic compounds using a zeolitic material, modified Y zeolite. In said cracking method, the modified zeolitic material can be the sole zeolitic component or can be combined with at least one second zeolitic component. The catalytic cracking method of the invention comprises at least the following steps: a) introducing at least one first zeolitic material, modified zeolite, into a reactor; b) supplying the reactor with at least one organic compound; c) leaving the modified zeolite and the organic compound in contact with another for the time necessary for the reaction to occur.

Description

technical field [0001] The present invention relates to catalysts for catalytic cracking. Background technique [0002] In catalytic processes, including those belonging to the field of refining, the general trend is to reduce costs by increasing the activity of the catalyst used, especially by optimizing its selectivity" Marcilly, C., Journal of Catalysis 216, 47( 2003)". Furthermore, conversion methods become more important due to the reduced consumption of heavy fuel oil. It can be expected that the fluidized catalytic cracking process (FCC) will remain the main method for conversion of vacuum distillates due to its high capacity and flexibility, which allows the production to be directed to To gaseous products (propylene and butylenes) gasoline or diesel. (A. Corma, B.W. Wojciechowski, Catal. Rev. Sci. Eng. 27(1985) 29). [0003] Global liquid fuel consumption continues to rise, but its demand is changing in recent years, with a marked increase in diesel demand and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/08B01J37/00B01J37/10C10G11/05B01J37/30
CPCC10L2200/0423B01J29/084B01J37/00C10L1/06C10L2270/026C10L2270/023C10L1/08B01J29/08C10G11/05C10L2200/0446B01J37/10B01J37/30B01J29/088B01J29/40B01J29/80B01J2229/186
Inventor A·科马卡诺斯M·C·马蒂内兹桑撤兹
Owner CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS (CSIC)
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