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

A catalytic thermal cracking and catalyst technology, applied in catalytic cracking, cracking, petroleum industry and other directions, can solve the problem that macromolecular catalytic reaction cannot be used, and achieve the effect of reducing coke and facilitating diffusion

Active Publication Date: 2005-08-31
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

[0038] Example 8 illustrates the preparation process of the mesoporous silica-alumina material.

example 1

[0040] 20gNH 4 Cl was dissolved in 1000g of water, and 100g (dry basis) of the crystallized product ZRP zeolite (produced by Qilu Petrochemical Catalyst Factory, SiO2) was added to the solution. 2 / Al 2 O 3 =30, rare earth content RE 2 O 3 = 2.0 wt%), exchanged at 90 °C for 0.5 h, filtered to obtain a filter cake; added 4.2 gH 3 PO 4 (concentration 85%) with 4.8g Fe (NO 3 ) 3 Dissolved in 90 g of water, mixed with filter cake, dipped and dried; the obtained sample was calcined at 550°C for 2 hours. Its elemental analytical chemical composition is

[0041] 0.1Na 2 O 5.0Al 2 O 3 ·2.4P 2 O 5 1.5Fe 2 O 3 1.9RE 2 O 3 ·89.1SiO 2 .

example 2

[0043] 50gNH 4 Cl was dissolved in 1000g of water, and 100g (dry basis) of the crystallized product ZRP zeolite (produced by Qilu Petrochemical Catalyst Factory, SiO2) was added to the solution. 2 / Al 2 O 3 =30, rare earth content RE 2 O 3 = 2.0 wt%), after exchanged at 85°C for 0.5 h, the filter cake was obtained by filtration; 8.0 g NH 4 H 2 PO 4 Dissolved in 60 g of water, mixed with filter cake, dipped and dried, and calcined at 550 ° C for 2 hours; 3 ) 3 The solution was exchanged at 80-90°C for 2 hours, filtered, exchanged several times until the target amount was reached, and then calcined at 550°C for 2 hours. The chemical composition of elemental analysis is

[0044] 0.03Na 2 O 4.8Al 2 O 3 ·4.5P 2 O 5 ·3.0Fe 2 O 3 ·1.8RE 2 O 3 ·85.9SiO 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 present invention relates to a catalytic thermal cracking catalyst for increasing the production of ethylene and propylene. Background technique [0002] The traditional method for producing ethylene from petroleum hydrocarbons is thermal cracking in a tubular furnace, 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 sources of light petroleum hydrocarbons are limited, so people turn their attention to the process of producing ethylene from heavy petroleum hydrocarbons. For example, the thermal cracking method of heavy petroleum hydrocarbons using quartz sand and coke as heat carriers, and the thermal cracking 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 in the production of low-carbon ol...

Claims

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Application Information

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Patent Type & Authority Applications(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