Selective hydrogenation process

Selective hydrogenation process

  • CN 105,339,329 A
  • Filed: 06/19/2014
  • Published: 02/17/2016
  • Est. Priority Date: 06/25/2013
  • Status: Active Application
First Claim
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1. one kind for making the method for diolefin hydrogenation, described method comprises:

  • substantially do not deposit and make liquid phase olefin stream contact with hydrogen with single catalyst in the case of carbon monoxide, described liquid phase olefin stream contains 200ppm to 1 of the total weight 2wt.% by described olefin stream, 3-divinyl, wherein carry out described contact;

    (a) is to make at least 2 different hydro load points in method described in described hydrogen feed-in, and relative to the amount of described divinyl, the hydrogen amount of at least one load point of feed-in is substoichiometric amount, and (b) is enough under hydrogenating conditions by 1, 3-butadiene concentration is reduced to and is less than 100ppm at least one effluent stream of described method.

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