1,4-丁二醇液相脱水环化制四氢呋喃

1,4-Butanediol Liquid Phase Dehydration for Producing Tetrahydrofuran

考察了 1,4-丁二醇液相脱水环化制四氢呋喃的催化剂 ,发现杂多酸或负载型杂多酸及Y、β、ZSM - 5型分子筛均具有很高活性 ,经催化剂稳定性试验 ,表明每克催化剂可处理原料 35 0 0 0g以上 ,原料转化率 10 0 %(mol) ,四氢呋喃选择性≥ 99% (mol)。该方法与传统糠醛法相比 ,具有设备投资少、四氢呋喃收率高、质量好。

The catalysts of 1,4-butanediol dehydration for producing tetrahydrofuran are studied,It is found that heteropoly acid,immersing heteropoly acid carrier and Y,β,ZSM-5 zeolite all have high activities.It hes been verified that by stability test more than 35000 grame 1,4-butanediol are reacted by one grame catalyst.The conversion of 1,4-butanediol is 100%(mol).the selectivity of tetrahydrofuran is more than 99.6%(mol).Comparing to the conventional furfural method,this process has many advantages,eg.lower investmentlower consumption of catalyst,high yield and quality product.