Cu-Zn-Al system gas phase aldehyde hydrogenation catalyst won the Patent Excellence Award

The preparation method and product of a copper-zinc-aluminum gas-phase aldehyde hydrogenation catalyst developed by the Research Institute of Petroleum and Petrochemicals, China, recently won the Excellence Award in the Eleventh China Patent Award.
The patent solves the problems in the prior art that the preparation process of the aldehyde hydrogenation catalyst is complicated, the repeatability is poor, the size of the catalyst crystal is not uniform, the selectivity is low, and the method for preparing the copper-zinc-aluminum gas-phase aldehyde hydrogenation catalyst is provided. Its products. The patented technology adopts a step-by-step continuous co-precipitation method to change the step-by-step intermittent feeding mode to continuous feeding mode. The obtained catalyst has a large specific surface area and pore volume, a high dispersion of active metal copper, and good catalyst activity. Both selectivity and stability have been greatly improved, reducing the occurrence of side reactions of esterification and etherification.
It is reported that this patented technology has been successively applied to Daqing Petrochemical Corporation Chemical No. 2 Plant and Jilin Petrochemical Company Fertilizer Plant, and successfully bid for Shandong and other places in the first half of this year, achieving the promotion of VAH-type gas-phase aldehyde hydrogenation catalysts outside the PetroChina system.