Quantitative risk assessment for the gasseparationplant is made using the DOW index. According to the results, prevention measures are offered to reduce the hazards further.
Propylene recovery at a rate above 85% from the non-condensable gas released from polypropylene plant was carried out with membrane separation technique.
应用膜分离技术，回收聚丙烯装置排空不凝气中的丙烯，回收率在85%以上。
3
Taking cases as example, the important role played by the gas monitoring and measuring system in safety operation of an air separationplant is verified.