| 摘要 |
<p>The process for the recovery of acrylonitrile or methacrylonitrile obtained from the reactor effluent of an ammoxidation reaction of propylene or isobutylene comprises the passing of the reactor effluent through an absorption column, a recovery column and a stripper column, wherein the improvement consists in increasing the recovery column top pressure by mechanical means by about 1.72 to 34.47 KPa (0.25 to 5 psi) in order to improve the hydraulic capacity of the recovery and stripper columns.</p> |
