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Catalytic and thermal cracking catalyst for increasing production of ethane and propylene

A catalytic thermal cracking and catalyst technology, which is applied in catalytic cracking, cracking, petroleum industry, etc., can solve the problems that macromolecules cannot be used to catalyze reactions, achieve good shape-selective catalytic ability, reduce coke, and facilitate diffusion

Active Publication Date: 2006-08-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the processed raw oil becomes heavier, traditional microporous catalytic materials cannot be used for catalytic reactions of macromolecules due to the limitation of pores.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 8

[0039] Example 8 illustrates the preparation of mesoporous silica-alumina materials.

example 1

[0041] 20gNH 4 Cl is dissolved in 1000g water, and 100g (dry basis) crystallization product ZRP zeolite (production of Qilu Petrochemical Catalyst Factory, SiO 2 / Al 2 o 3 =30, rare earth content RE 2 o 3 =2.0% by weight), after exchanging at 90°C for 0.5h, filter the filter cake; add 4.2gH 3 PO 4 (Concentration 85%) and 4.8gFe(NO 3 ) 3 Dissolved in 90g of water, mixed with the filter cake, soaked and dried; the obtained sample was roasted at 550°C for 2 hours. Its elemental analysis chemical composition is 0.1Na 2 O·5.0Al 2 o 3 2.4P 2 o 5 1.5Fe 2 o 3 1.9RE 2 o 3 89.1 SiO2 2 .

example 2

[0043] 50gNH 4 Cl is dissolved in 1000g water, and 100g (dry basis) crystallization product ZRP zeolite (production of Qilu Petrochemical Catalyst Factory, SiO 2 / Al 2 o 3 =30, rare earth content RE 2 o 3 =2.0% by weight), after exchanged at 85°C for 0.5h, filtered to obtain a filter cake; 8.0gNH 4 h 2 PO 4 Dissolve in 60g of water, mix with filter cake, immerse and dry, and roast at 550°C for 2 hours; mix the above sample with 5% Fe(NO 3 ) 3 The solution was exchanged at 80-90°C for 2 hours, filtered, and exchanged several times until the target amount was reached, and then calcined at 550°C for 2 hours. Elemental analysis chemical composition is 0.03Na 2 O·4.8Al 2 o 3 4.5P 2 o 5 3.0 Fe 2 o 3 1.8RE 2 o 3 ·85.9SiO2 2 .

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PUM

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Abstract

A thermocracking catalyst for increasing the output of ethene and propene is proportionally prepared from clay, meso-porous SiAl material, inorganic oxide and the zeolite with MFI structure.

Description

technical field [0001] The invention relates to a catalytic pyrolysis catalyst for increasing the production of ethylene and propylene. Background technique [0002] The traditional method of producing ethylene from petroleum hydrocarbons is to use tube furnace pyrolysis, and the raw materials used are light petroleum hydrocarbons such as ethane, propane, butane, natural gas, naphtha or light diesel oil. With the tight supply of crude oil resources, the source of light petroleum hydrocarbons is limited, so people turn their attention to the process of producing ethylene from heavy petroleum hydrocarbons. For example, the pyrolysis method of heavy petroleum hydrocarbons using quartz sand and coke as heat carriers, and the pyrolysis method of heavy petroleum hydrocarbons using alkali metal or alkaline earth metal oxide catalysts as heat carriers. [0003] There are roughly three types of catalysts used when petroleum hydrocarbons are used as raw materials to produce low-carbo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/05
Inventor 赵留周罗一斌谢朝钢欧阳颖贺方王殿中舒兴田汪燮卿
Owner CHINA PETROLEUM & CHEM CORP