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Reformate non-hydroisomerization olefin-reducing catalyst

A non-hydrogenation and deolefination technology, applied in molecular sieve catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of low activity of deolefination refining preparations, large loss of aromatics, and high labor intensity, and achieve the The effect of cracking and deep polymerization, prolonging catalyst life and good technical effect

Active Publication Date: 2011-03-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is the problem of low activity, short service life and large loss of aromatics in the prior art deolefin refining preparation, and a new non-hydrogenation deolefin catalyst for reformed oil is provided
The catalyst has the advantages of high activity of deolefination, less loss of aromatics and long service life when it is used in the non-hydrogenation deolefination reaction of reforming oil, and solves the problems of high labor intensity and serious environmental pollution caused by frequent replacement of clay.

Method used

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  • Reformate non-hydroisomerization olefin-reducing catalyst
  • Reformate non-hydroisomerization olefin-reducing catalyst
  • Reformate non-hydroisomerization olefin-reducing catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take Na 2 O content is 0.15% (weight) pseudo-boehmite 10 grams, and K 2 90 grams of 4A molecular sieves with an O content of 1.5% (weight) were mixed evenly. Prepare a solution with 0.10 g of 10% hydrochloric acid, 13.02 g of 85% phosphoric acid, 2.5 ml of chemically pure nitric acid and 63 ml of water. Add this mixed solution to the mixture, mix evenly, knead and extrude to shape, dry and bake at 550°C for 3 hours to obtain a catalyst with the composition of Cl / P / molecular sieve / alumina=0.01 / 3.5 / 90 / 10 A-1.

Embodiment 2

[0023] Take SiO 2 Content is 40% (weight) of silica sol 50 grams, and K 2 80 grams of 5A molecular sieves with an O content of 1.0% (weight) were mixed evenly. A solution was prepared with 0.73 g of 10% ammonium bromide solution, 3.89 g of chemically pure ammonium fluoride, 2.5 ml of chemically pure nitric acid and 35 ml of water. Add this mixed solution to the mixture, mix evenly, knead and extrude to shape, dry and bake at 550°C for 3 hours to obtain a composition of Br / F / molecular sieve / SiO 2 = 0.05 / 2.0 / 80 / 20 for Catalyst A-2.

Embodiment 3

[0025] Take Na 2 O content is 50 grams of pseudo-boehmite of 0.15% (weight), and Na 2 50 g of Zeolite X with an O content of 1.5% (by weight) was mixed evenly. Prepare a solution with 2.5 milliliters of chemically pure nitric acid and 65 milliliters of water. Add the mixed solution to the mixture, mix evenly, knead and extrude to shape, dry and bake at 550°C for 3 hours to prepare catalyst B-1 with molecular sieve / alumina=50 / 50.

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Abstract

The invention relates to a reformate non-hydroisomerization olefin-reducing catalyst mainly solving the problems of low activity, short service life and big aromatic hydrocarbon loss of a olefin-reducing refining agent in the prior art. The invention well solves the problem through the technical scheme of adopting a novel catalyst comprising the following components in parts by weight: 10-90 parts of molecular sieve and 0.01-2.00 parts of at least one element selected from Cl, Br or S or an oxide thereof, 0.05-5 parts of at least one element selected from F and P or an oxide thereof and 10-90parts of aluminum oxide or silicon oxide binder by elements. The invention can be used for the reformate non-hydroisomerization olefin-reducing industrial production.

Description

technical field [0001] The invention relates to a catalyst for deolefinization of oil produced by reforming under non-hydrogenation conditions. Background technique [0002] The products after the catalytic reforming reaction all contain a certain amount of olefin impurities. Olefins are active, not only easy to polymerize to form colloids, but also may react with other components to form non-ideal components, which will have a great impact on the quality of aromatic products. On the other hand, certain petrochemical processes such as xylene adsorption separation are particularly sensitive to olefins, even if the content of olefin impurities is only a few parts per million, it will have a very adverse effect on the process. In order to obtain qualified chemical raw materials and ensure the smooth progress of subsequent processes, after the reforming, aromatics extraction, isomerization, and toluene disproportionation processes, there is a refining process to remove trace ol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/70B01J29/08B01J29/18B01J29/40B01J29/85C10G29/16
Inventor 王雨勃郭宏利孔德金龚燕芳杨德琴侯敏
Owner CHINA PETROLEUM & CHEM CORP
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