PROCESS FOR MAXIMIZING 371 DEG + PRODUCTION IN A FISCHER-TROPSCH PROCESS
摘要
A hydrocarbon synthesis (HCS) process wherein a Fisher-Tropsch reactor is operated to maximize the selectivity to 371 DEG C+ boiling fraction while minimizing the production of less valuable products such as light gases (C>1<-C>4<), naphtha and diesel fractions. Inventive modes of operation to offset the effects of catalyst deactivation and maximize selectivity to 371 DEG C+ boiling fraction are utilized including (a) reducing gas inlet velocity to maintain an optimal CO conversion level, (b) introducing additional active catalyst until a maximum loading is reached, and (c) increasing reactor temperature until productivity reaches a predetermined cut-off level.
申请公布号
WO03044128(A2)
申请公布日期
2003.05.30
申请号
WO2002US32190
申请日期
2002.10.08
申请人
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
发明人
WITTENBRINK, ROBERT, JAY;BURNS, LOUIS, FRANCIS;HOWSMAN, GREGG, JOHNSTON;SAY, GEOFFREY, RHYS