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Vinyl acetylene hydrogenation catalyst and preparation method and applications thereof

A technology of vinyl acetylene and hydrogenation catalyst, which is applied in the fields of hydrogenation to hydrocarbons, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc. It can solve the problems of butadiene supply risks and achieve cost reduction. Low, highly selective, less time-consuming effects

Inactive Publication Date: 2013-09-11
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the increasingly scarce oil resources in our country, the supply of butadiene is at risk

Method used

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  • Vinyl acetylene hydrogenation catalyst and preparation method and applications thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Use deionized water to make palladium nitrate and copper nitrate into 3.73×10 -3 mol / L solution, and then according to the ratio of pd%=50%, Cu%=50%, the two solutions are made into a mixed metal salt solution. Measure 30ml of mixed metal salt solution, slowly add 10g of carrier α-Al 2 o 3 In a ceramic cell, stir with a glass rod while adding, in order to obtain a paste precursor. Next, the resulting paste precursor was left to stand for 3 hours to carry out co-impregnation of the carrier, and then it was put into a muffle furnace for roasting, so as to prepare a vinyl acetylene catalyst, wherein the temperature control program of the muffle furnace is: use 30min The temperature was raised to 100°C, held at this temperature for 1 h, then raised to 500°C over 1 h and held for 4 h, and finally lowered to 30°C over 3 h.

Embodiment 2

[0034] According to the preparation method of Example 1, a vinyl acetylene hydrogenation catalyst was prepared. Wherein, the difference from Example 1 is that the mixed metal salt used in the catalyst preparation is palladium, silver and copper nitrate, and its composition is pd%=60%, Cu%=20%, Ag%=20%.

Embodiment 3

[0036] According to the preparation method of Example 1, a vinyl acetylene hydrogenation catalyst was prepared. Wherein, the difference from Example 1 lies in that the mixed metal salt solution used in the preparation of the catalyst is a nitrate solution of palladium and silver, and its composition is pd%=60%, Ag%=40%.

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PUM

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Abstract

The invention provides a vinyl acetylene hydrogenation catalyst and a preparation method and applications thereof, wherein the vinyl acetylene hydrogenation catalyst comprises the following compositions in parts by weight: 0.01-30 parts of active component, 40-99.989 parts of carriers and catalyst promoter, wherein the mole ratio of the catalyst promoter to the active component is (0.1-10):1. According to the vinyl acetylene hydrogenation catalyst, the acetylene hydrogenation activity and butadiene selectivity are high, the vinyl acetylene hydrogenation catalyst can be effectively used in vinyl acetylene hydrogenation reaction so as to further efficiently prepare butadiene.

Description

technical field [0001] The invention relates to the technical field of catalyst preparation, in particular to the technical field of vinyl acetylene hydrogenation catalyst preparation. Specifically, the present invention relates to a vinyl acetylene hydrogenation catalyst and its preparation method and use. More specifically, the present invention provides a vinyl acetylene hydrogenation catalyst, a method for preparing a vinyl acetylene hydrogenation catalyst, a method for preparing butadiene, and a butadiene product. Background technique [0002] Butadiene is an important petrochemical basic organic raw material and high polymer monomer. Its position in petrochemical olefin raw materials is second only to ethylene and propylene, and it has a wide range of uses. It can not only be used to produce synthetic butadiene rubber (BR), styrene-butadiene rubber (SBR), nitrile rubber, styrene-butadiene-styrene elastomer (SBS), acrylonitrile-butadiene-styrene ( ABS) resin and other...

Claims

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Application Information

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IPC IPC(8): B01J23/89B01J23/50B01J23/755B01J23/75B01J27/232C07C11/167C07C5/09
Inventor 韩明汉刘建国丁佐纯陈伟左宜赞汪展文
Owner TSINGHUA UNIV
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