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Olefin disproportionation catalyst

A technology for olefin disproportionation and catalysts, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, organic chemistry, etc., can solve the problem of low disproportionation activity of catalysts, and achieve good disproportionation activity and synergistic effect Obvious, life-enhancing effect

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The technical problem to be solved by the present invention is the problem of low catalyst disproportionation activity existing in the prior art, and a new olefin disproportionation catalyst is provided

Method used

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Experimental program
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Effect test

Embodiment 1

[0036] 52 grams of chromatographic silica gel, 100 grams of silica sol (containing 40% by weight of silicon oxide) and 2 grams of scallop powder are mixed and put into a blender, after stirring for 20 minutes, add 0.1 gram of magnesium oxide, 0.004 gram of zinc nitrate Zn (NO 3 ) 2 ·6H 2 O and 10 grams of ammonium metatungstate (containing 80% by weight of tungsten oxide), then stirred for 5 minutes, added 250 grams of deionized water, kneaded for 2 hours, extruded and dried at 100 ° C for 4 hours, in the air atmosphere The catalyst was obtained by calcining at 550°C for 4 hours, which was designated as SL-1.

[0037] The evaluation of the catalyst was carried out on an olefin disproportionation evaluation device, using 2-butene and ethylene as raw materials, calculated by mass fraction, the raw materials were 99.9% 2-butene and 99.9% ethylene. The reaction is at a temperature of 300°C, a pressure of 3MPa, a molar ratio of ethylene to butene of 3.5 and a weight space veloci...

Embodiment 2

[0040] 52 grams of chromatographic silica gel, 100 grams of silica sol (containing 40% by weight of silicon oxide) and 2 grams of scallop powder were mixed and put into a blender, and after stirring for 20 minutes, 5 grams of magnesium oxide and 0.004 grams of zinc nitrate Zn were added. (NO 3 ) 2 ·6H 2 O and 10 grams of ammonium metatungstate (containing 80% by weight of tungsten oxide), then stirred for 5 minutes, added 250 grams of deionized water, kneaded for 2 hours, extruded and dried at 100 ° C for 4 hours, in the air atmosphere The catalyst was prepared by calcining at 550°C for 4 hours, which was designated as SL-2.

[0041] The evaluation of the catalyst was carried out on an olefin disproportionation evaluation device, using 2-butene and ethylene as raw materials, calculated by mass fraction, the raw materials were 99.9% 2-butene and 99.9% ethylene. The reaction is at a temperature of 300°C, a pressure of 3MPa, a molar ratio of ethylene to butene of 3.5 and a wei...

Embodiment 3

[0044] 52 grams of chromatographic silica gel, 100 grams of silica sol (containing 40% by weight of silicon oxide) and 2 grams of scallop powder were mixed and put into a blender, and after stirring for 20 minutes, 0.5 grams of magnesium oxide and 0.004 grams of zinc nitrate Zn were added. (NO 3 ) 2 ·6H 2 O and 10 grams of ammonium metatungstate (containing 80% by weight of tungsten oxide), then stirred for 5 minutes, added 250 grams of deionized water, kneaded for 2 hours, extruded and dried at 100 ° C for 4 hours, in the air atmosphere The catalyst was obtained by calcining at 550°C for 4 hours, which was designated as SL-3.

[0045] The evaluation of the catalyst was carried out on an olefin disproportionation evaluation device, using 2-butene and ethylene as raw materials, calculated by mass fraction, the raw materials were 99.9% 2-butene and 99.9% ethylene. The reaction is at a temperature of 300°C, a pressure of 3MPa, a molar ratio of ethylene to butene of 3.5 and a w...

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Abstract

The invention relates to an olefin disproportionation catalyst, which is mainly used for solving the problem of low disproportionation activity of a catalyst in the prior art. The problem is well solved through the adoption of the technical scheme that the olefin disproportionation catalyst comprises the following components in parts by weight: a) 1-30 parts of tungsten or a tungsten oxide; b) 0.1-5 parts of magnesium or a magnesium oxide; c) 0.001-1 part of at least one element in group IIB in the periodic table of elements or an oxide of the IIB element; and d) 64-99 parts of silicon oxide. The olefin disproportionation catalyst can be applied to the industrial production of olefin disproportionation reaction.

Description

technical field [0001] The invention relates to an olefin disproportionation catalyst. Background technique [0002] The traditional methods of ethylene co-production and refinery recovery of propylene are obviously difficult to meet the growing demand for propylene. The use of olefin disproportionation technology can digest C without reducing the cracking severity of naphtha. 4 Distillate, and can increase the production of propylene, so the research and development of olefin disproportionation to propylene technology is not only to improve the production of propylene, but also to promote low value-added C 4 The comprehensive utilization of distillates is of great significance, among which the disproportionation of butene involved in the present invention to produce propylene is a promising process. [0003] Olefin disproportionation reaction, also known as olefin double bond replacement reaction, is an olefin conversion phenomenon discovered in the 1960s. Abundant olefin...

Claims

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Application Information

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IPC IPC(8): B01J23/30C07C11/06C07C6/04
CPCY02P20/52
Inventor 董静宣东刘苏
Owner CHINA PETROLEUM & CHEM CORP