公开(公告)号：WO2019083846A1

公开(公告)日：2019-05-02

申请号：PCT/US2018/056727

申请日：2018-10-19

申请人： LYONDELL CHEMICAL TECHNOLOGY, L.P.

发明人： LEYSHON, David W.

IPC分类号： C07C1/20 ,  C07C4/06 ,  C07C11/04 ,  C07C11/06 ,  C07C1/24 ,  C07C11/08 ,  C10G11/05

CPC分类号： C07C1/22 ,  B01J21/16 ,  B01J29/85 ,  C07C1/20 ,  C07C1/24 ,  C07C4/06 ,  C07C2521/08 ,  C07C2521/16 ,  C07C2527/173 ,  C07C2529/40 ,  C07C2529/82 ,  C10G3/49 ,  C10G11/05 ,  C10G2400/20 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08

摘要： Methods of producing at least one of ethylene and propylene. The methods may include contacting a mixture of C4+ compounds with a catalyst to convert at least a portion of the C4+ compounds to at least one of ethylene and propylene. The catalyst can include a phosphorus treated zeolite, and the mixture of C4+ compounds can include at least one of t-butyl alcohol and methyl t-butyl ether.

公开(公告)号：WO2019152980A1

公开(公告)日：2019-08-08

申请号：PCT/US2019/016631

申请日：2019-02-05

申请人： LYONDELL CHEMICAL TECHNOLOGY, L.P.

发明人： ROSS-MEDGAARDEN, Elizabeth I. ,  LEYSHON, David W. ,  RUFENER, Karl P. ,  KONGKITISUPCHAI, Sunti ,  WOLFF, Richard J. ,  PETRY, Kimberly A.

IPC分类号： C07D301/32 ,  B01D3/32

CPC分类号： C07D301/32 ,  B01D3/008 ,  B01D3/143 ,  B01D3/40 ,  B01D3/4227

摘要： A propylene oxide separation system comprising a heavies distillation column configured to receive a crude propylene oxide stream and discharge a heavies purge bottoms comprising at least one impurity selected from acetone, methanol, aldehydes, aldehyde derivatives, water, heavy hydrocarbons comprising C 5+ , or combinations thereof, and discharge a heavies distillation column overhead stream comprising a majority of the propylene oxide entering with the crude propylene oxide stream, and a first extractive distillation column configured to receive the heavies distillation column overhead stream and a first extraction solvent stream comprising a hydrocarbon solvent, and discharge a lights purge overhead comprising at least one impurity selected from aldehydes (e.g., acetaldehyde, formaldehyde, etc.) methyl formate, methanol, water, C 3 hydrocarbons, C 4 hydrocarbons, or combinations thereof, and discharge a rich solvent bottoms stream comprising a majority of the propylene oxide entering via the heavies distillation column overhead stream. A propylene oxide purification method is also provided.