Continuous process for recovery of acetylene-free gaseous mixtur

Details Continuous process for recovery of acetylene-free gaseous mixtur Continuous process for recovery of acetylene-free gaseous mixtur

1997-04-07

1998-10-27

Anthony, Joseph D.

Gas separation: processes

Liquid contacting

Organic gas, liquid particle, or solid particle sorbed

95149, 95151, B01D 4700, B01D 4702

Patent

active

058273565

ABSTRACT:
A continuous process for recovery of acetylene-free gaseous mixture from gaseous feedstreams containing acetylene and optionally other low molecular weight hydrocarbons by contacting the acetylene-containing feedstream with an alkanol in combination with a super acid catalyst, Lewis acid, Bronsted acids, or mixtures thereof, under conditions of reaction sufficient to form a mixture containing at least one acetal organic compound, and a gaseous product substantially free of acetylene. Preferred catalysts include boron trifluoride in methanol with mercuric oxide. Processes according to the invention are, advantageously, used for recovery of acetylene-free gaseous mixture from gaseous feedstreams containing a mixture of acetylene, a synthesis gas comprising dihydrogen and carbon monoxide, and optionally one or more members of the group consisting of dimethyl ether, formaldehyde, ethylene, and propylene.

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Article by Hinton and J. A. Nieuwland, J. American Chem. Soc. 52, 2892, Article Entitled: "A New Method of Preparing Acetals. II. Acetals of Monohydric Alcohols".

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