公开(公告)号：WO2021081089A1

公开(公告)日：2021-04-29

申请号：PCT/US2020/056653

申请日：2020-10-21

Applicant: PHILLIPS 66 COMPANY

Inventor： YAO, Jianhua ,  XIE, Hong ,  MARDA, Jonathan ,  GHONASGI, Dhananjay ,  PANSARE, Sourabh

IPC: B01D3/10 ,  B01D3/14 ,  C10G21/00

Abstract: A process and system for the conversion of a feedstock comprising C3-C5 light alkanes to a C5+ hydrocarbon product, for example, a BTX-rich hydrocarbon product, by performing the alkane activation (first-stage) and the oligomerization/aromatization (second- stage) in separate stages, which allows each conversion process to occur at optimal reaction conditions thus increasing the overall hydrocarbon product yield. The alkane activation or first- stage is operated at a higher temperature than the second-stage since light alkanes are much less reactive than light olefins. Since aromatization of olefins is more efficient at higher pressure, the second-stage is maintained at a higher pressure than the first-stage. Further, fixed-bed catalysts are used in each of the first-stage and the second-stage.