System and method for the hydrogenation of 1,4-butynediol to 1,4-butanediol
By using three different catalysts and a temperature control device in the BDO hydrogenation process via the acetylene-aldehyde method, the problem of catalyst carbon buildup is solved, catalyst life is extended, and production efficiency and product quality are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI DIYANG CHEMICAL TECHNOLOGY CO LTD
- Filing Date
- 2026-04-13
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing BDO hydrogenation process using the acetylene-aldehyde method, the catalyst deactivates rapidly due to carbon buildup, resulting in short catalyst life, low production efficiency, and reduced product quality.
By employing three catalysts with different properties to precisely control reaction conditions in two reaction stages, the formation of aldehyde intermediates and the deposition of carbon precursors are suppressed through the short residence time and high catalyst conversion rate in the first stage, and the temperature control device and modified auxiliary agent carrier noble metal catalyst in the second stage.
Extend catalyst life, reduce unplanned shutdowns, improve production stability and product quality, and reduce production costs.
Smart Images
Figure CN122399676A_ABST