High Yield of Liquid Range Olefins Obtained by Converting <i>i</i>-Propanol over Zeolite H-ZSM-5
作者:Uffe V. Mentzel、Saravanamurugan Shunmugavel、Sarah L. Hruby、Claus H. Christensen、Martin S. Holm
DOI:10.1021/ja907692t
日期:2009.11.25
Methanol, ethanol, and i-propanol were converted under methanol-to-gasoline (MTH)-like conditions (400 degrees C, 1-20 bar) over zeolite H-ZSM-5. For methanol and ethanol, the catalyst lifetimes and conversion capacities are comparable, but when i-propanol is used as the reactant, the catalyst lifetime is increased dramatically. In fact, the total conversion capacity (calculated as the total amount
甲醇、乙醇和异丙醇在类似甲醇到汽油 (MTH) 的条件下(400 摄氏度,1-20 巴)在沸石 H-ZSM-5 上转化。对于甲醇和乙醇,催化剂寿命和转化能力相当,但当使用异丙醇作为反应物时,催化剂寿命显着增加。事实上,与低级醇相比,异丙醇的总转化能力(按失活前转化的醇总量计算为 g(醇)/g(沸石))高出 25 倍以上。此外,当使用异丙醇作为反应物时,对烷烃和芳烃的选择性随着时间的推移而迅速下降,在 20 巴的压力下,液体产物混合物几乎完全由 C(4)-C(12) 烯烃组成。大约是整个反应时间的三分之一。