摘要
研究了膜反应器中的乙苯脱氢过程,与固定床相比,选择性由92～95％提高到97～99.7％;在水/乙苯比为1:1(m)时转化率提高了一倍;甚至在无水条件下,反应也能稳定进行,且转化率超过了平衡转化率。
The dehydrogenation of ethylbenzene is carried out in a membrane reactor at 793 K.An inorganic membrane which is hydrogen perm-selective is located between the catalyst bed and permeation chamber. The catalyst is normally operated at 773～993 K in a fixed-bed reactor with feed of W/E (Water/Ethylbenzene)=1～3. The results show that conversion is higher than that of equilibrium; selectivity to styrene formation is enhanced from 92～95% to 97～99%; the catalyst with feed of W/E=0～1 can operate steadily for 18 hrs.without the formation of carbon deposit. However, the same catalyst operated in a fixed-bed reactor under the same conditions is almost completely deactivated in less than 2 hrs.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1991年第4期98-103,共6页
Acta Petrolei Sinica(Petroleum Processing Section)
