Isomerization catalyst, method for producing linear olefin, and method for producing compound

A technology for straight-chain olefins and a production method, which is applied in the directions of isomerization to hydrocarbon production, carbon compound catalysts, physical/chemical process catalysts, etc., can solve the problems of insufficient yield, reduced product purity, catalyst deterioration, etc., and achieves good efficiency. , the effect of suppressing catalytic degradation

Active Publication Date: 2020-05-29
JXTJ NIPPON OIL & ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, the positional isomerization method of olefins using the conventional isomerization catalyst has the following disadvantages: the purity of the product is lowered due to the progress of side reactions, or the yield is insufficient, or Difficult to use industrially due to obvious deterioration of the catalyst, etc.

Method used

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  • Isomerization catalyst, method for producing linear olefin, and method for producing compound
  • Isomerization catalyst, method for producing linear olefin, and method for producing compound
  • Isomerization catalyst, method for producing linear olefin, and method for producing compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] 0.3 cc of an H-β zeolite catalyst (manufactured by Tosoh Corporation, Si / Al=250 (mol / mol)) was filled in a tubular reactor (manufactured by SUS tube). The tube reactor had an inner diameter of 14 mm and a total length of 60 cm. Fill the upper and lower parts of the catalyst with glass beads. The glass beads had an average particle diameter of 1 mm. After connecting this reactor to a circulation reactor, the temperature in the reactor was raised to 350° C. using an electric furnace. A raw material (raw material gas) containing olefin, an oxygen / nitrogen mixed gas (oxygen concentration 10%), and water (steam) were supplied to the heated reactor. The isomerization reaction of olefins is carried out in the above steps.

[0106] In addition, the inflow rates of the raw material gas, air and water (steam) into the reactor were as follows. In addition, the oxygen concentration in the gas supplied to a reactor was 8.5 volume%, and the water concentration was 7.1 volume%. T...

Embodiment 2

[0114] Isomerization of olefins was carried out in the same manner as in Example 1 except that a zeolite catalyst of H-ZSM-5 (manufactured by Tosoh Corporation, Si / Al=940 (mol / mol)) was used as the isomerization catalyst. reaction.

Embodiment 3

[0116] The isomerization reaction of olefins was carried out in the same manner as in Example 1 except that the SAPO-34 zeolite catalyst prepared in reference to Comparative Example 2 of JP-A-2012-91997 was used as the isomerization catalyst.

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Abstract

An isomerization catalyst for isomerizing a first linear olefin into a second linear olefin having a different position of a double bond in the presence of 20 ppm by volume or more of molecular oxygen and / or water , the isomerization catalyst comprises Si and Al.

Description

technical field [0001] The present invention relates to an isomerization catalyst and a method for producing linear olefins using the same. Furthermore, the present invention relates to a process for the production of compounds derived from linear olefins. Background technique [0002] A linear olefin having one double bond in the molecule is useful as a basic chemical raw material in the petrochemical industry, and its use varies depending on the position of the double bond in the molecule. An internal olefin having a double bond inside is used, for example, as a reaction raw material for hydrogenation, alkylation, or the like. On the other hand, a terminal olefin having a double bond at the terminal is used, for example, in reactions such as dehydrogenation, hydroformylation, and oligomerization. In addition, among terminal olefins, C4-C8 terminal olefins (for example, 1-butene, 1-hexene, and 1-octane) used together with ethylene in the production of linear low-density p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/70B01J21/12B01J29/08B01J29/40B01J29/85C07C5/25C07C11/08C07B61/00
CPCB01J21/12B01J29/06B01J29/08B01J29/18B01J29/40B01J29/70B01J29/7007B01J29/85C07C5/2518C07C2529/06C07C2529/40C07C2529/70C07C11/08C07C5/333C07C45/50C07C2521/12C07C2529/08C07C2529/85
Inventor 木村信启樋口荘祐若林隼二濑川敦司
Owner JXTJ NIPPON OIL & ENERGY CORP
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