公开(公告)号：US20230265033A1

公开(公告)日：2023-08-24

申请号：US18005592

申请日：2021-07-16

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Vijay Dinkar BODAS ,  Guillermo LEAL CANELON ,  Mohammed Bismillah ANSARI

IPC: C07C41/06 ,  C07C5/27 ,  C07C5/333 ,  C07C4/04

CPC classification number: C07C41/06 ,  C07C5/2754 ,  C07C5/3337 ,  C07C5/3335 ,  C07C4/04 ,  C07C2523/26 ,  C07C2523/42 ,  C07C2521/04 ,  C07C2521/06

Abstract: Systems and methods for processing a C3 and C4 hydrocarbon mixture have been disclosed. The C3 and C4 hydrocarbon mixture is first processed in an isomerization unit to isomerize n-butane to form isobutane. The resulting effluent stream from the isomerization unit comprising primarily isobutane and C3 hydrocarbons, collectively, is flowed into a separation unit configured to separate the effluent stream to form a C3 stream comprising C1 to C3 hydrocarbons and a C4 stream comprising primarily isobutane. The isobutane in the C4 stream is further dehydrogenated to form isobutene, which is further flowed into an MTBE synthesis unit as a feedstock for producing MTBE.

公开(公告)号：US20230271907A1

公开(公告)日：2023-08-31

申请号：US18005593

申请日：2021-07-16

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Mohammed Bismillah ANSARI ,  Guillermo LEAL CANELON ,  Vijay Dinkar BODAS ,  Umesh HASYAGAR ,  Vinod NAIR

IPC: C07C41/06

CPC classification number: C07C41/06

Abstract: Systems and methods for producing MTBE without using a catalytic distillation column or a super fractionator have been disclosed. An optimum volume of methanol stream required to maximize MTBE production and reduce slippage of isobutylene to minimum acceptable values together with a crude C4 stream are flowed into a primary reaction unit that comprises a first reactor and a second reactor in parallel configured to produce maximum values of final MTBE volumes under higher or equal established purity commercial quality specifications levels. The combined effluent from the first reactor and the second reactor is split to form a first portion, a second portion and a third portion. The first portion is flowed to a third reactor configured to produce additional MTBE. The second portion is combined with an effluent from the third reactor for further separation. The third portion is recycled to the first reactor and/or second reactor.