摘要
研究了ZSM-5分子筛气相催化γ-丁内酯与甲胺水溶液合成N-甲基吡咯烷酮(NMP)的反应,考察了空速、反应温度、分子筛硅铝比以及原料投料比等因素对NMP产率的影响。结果表明,以硅铝摩尔比为120的ZSM-5分子筛作催化剂,在n(甲胺):n(γ-丁内酯):n(水)=1.5:1.0:30、空速为0,5 h-1、反应温度为300℃、常压的条件下,NMP产率达到99%左右。
A process for vapor-phase synthesis of N-mehtyl-2-pyrrolidone （NMP） from ~,-butyrolac- tone （GBL） and aqueous methylamine over ZSM-5 molecular sieve was studied. The effects of liquid hourly space velocity （LHSV）, reaction temperature, silica to alumina ratio of ZSM-5 molecular sieve and molar ratios of raw materials on the yield of NMP were investigated. Test results showed that using ZSM-5 molecular sieve catalyst with silica to alumina ratio of 120, under the conditions of molar ratios of methylamine ： GBL ： water was optimized to 1.5 ： 1.0 ： 30, LHSV of 0.5 h^-1, under atmospheric pressure and a reaction temperature of 300℃, the yield of NMP could reach about 99%.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2013年第1期51-55,共5页
Petroleum Processing and Petrochemicals
