Process and catalyst for conversion of acetic acid to isobutene and propylene

摘要

A process is disclosed for converting acetic acid to propylene and isobutene as the principal hydrocarbon products made, in the presence of a catalyst and in the further presence of hydrogen. In certain embodiments, a ZnxZryOz mixed oxide catalyst is used for carrying out a gas phase process, and propylene is produced preferentially to isobutene by using at least a certain amount of hydrogen in the process. In some embodiments, a ZnxZryOz mixed oxide catalyst made by an incipient wetness impregnation method is used and is indicated to be very stable for carrying out the conversion.

主权项

1. A process for converting acetic acid to propylene and isobutene comprising: reacting hydrogen with acetic acid in the presence of a ZnxZryOz mixed oxide catalyst in a reactor to form propylene and isobutene, in which the ratio of x:y is from 1:100 to 10:1 and z is a stoichiometric coefficient for the ZnxZryOz mixed oxide catalyst.