丙烯腈生产急冷新工艺  

A New Quenching Process for Acrylonitrile Production

作　　者：张辉[1] 甘永胜[1] 方永成[1] 

机构地区：[1]上海石油化工研究院,上海201208

出　　处：《石油化工》2003年第7期596-598,共3页Petrochemical Technology

摘　　要：针对国内现有丙烯腈生产装置急冷工艺所存在的缺陷,经热模试验、冷模试验分析研究和工业试验修改验证,开发了一种新的急冷工艺。此工艺具有提高急冷系统内气液传热和传质效率以及降低急冷系统内丙烯腈聚合损失的优点。工业运行结果表明,此新工艺的应用可使整个装置的丙烯腈精制回收率提高4%以上。Existing defects of present quenching tower and process in China's acrylonitrile production plants were analyzed.Based on a series of cold-flow model experiments and real-flow model tests,the existing quenching towers were revamped and consequently a new quenching process was developed.The new quenching system and process improved the efficiency of mass and heat transfer of vapor-liquid quenching system and decreased the loss of acrylonitrile in quenching tower.Industrial practice showed that recovery of acrylonitrile of the whole plant can be increased by more than 4%.

关 键 词：丙烯腈 急冷 工艺 精制 回收率 

分 类 号：TQ226.61[化学工程—有机化工]