公开(公告)号：US11530173B2

公开(公告)日：2022-12-20

申请号：US17643867

申请日：2021-12-13

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Mohsen N. Harandi ,  Randall J. Meyer

IPC: C07C5/333 ,  B01J29/40 ,  B01J8/24

Abstract: A method may include: contacting a light paraffin feed comprising ethane, propane, butane, naphtha or combinations thereof with a restrained catalyst in a reactor; converting at least a portion of the light paraffin feed to ethylene, propylene, or combinations thereof with an olefin selectivity of at least 70 wt. % and methane selectivity of less than 15 wt. %; and withdrawing a product stream from the reactor.

公开(公告)号：US12048919B2

公开(公告)日：2024-07-30

申请号：US17217782

申请日：2021-03-30

Applicant: Massachusetts Institute of Technology ,  ExxonMobil Technology and Engineering Company

Inventor： Yuriy Román-Leshkov ,  Randall J. Meyer ,  Pedro M. Serna Merino ,  Mark Sullivan ,  Kimberly Dinh

IPC: B01J29/072 ,  B01J29/00 ,  B01J29/06 ,  B01J29/24 ,  B01J29/40 ,  B01J29/68 ,  B01J29/76 ,  B01J29/80 ,  B01J29/83 ,  B01J29/86 ,  B01J29/87 ,  B01J37/00 ,  B01J37/04 ,  C07C29/48

CPC classification number: B01J29/763 ,  B01J29/005 ,  B01J29/061 ,  B01J29/072 ,  B01J29/24 ,  B01J29/40 ,  B01J29/68 ,  B01J29/7615 ,  B01J29/80 ,  B01J29/83 ,  B01J29/86 ,  B01J29/87 ,  B01J37/0036 ,  B01J37/0063 ,  B01J37/04 ,  C07C29/48 ,  B01J2029/062 ,  B01J2229/18 ,  B01J2229/183 ,  B01J2229/186 ,  B01J2229/20 ,  C07C2529/06 ,  C07C2529/072 ,  C07C2529/24 ,  C07C2529/40 ,  C07C2529/68 ,  C07C2529/70 ,  C07C2529/76 ,  C07C2529/80 ,  C07C2529/83 ,  C07C2529/85 ,  C07C2529/87

Abstract: Catalytic compositions and sequential catalytic methods are generally described. In some embodiments, a composition comprises a first catalyst comprising a Cu-modified zeolite, and a second catalyst capable of a coupling reaction between (a) an intermediate resulting from a reaction of a reactant at the first catalyst, and (b) a co-reagent, wherein a rate of diffusion of the co-reagent within one or more cages and/or pores of the first catalyst is lower than a rate of diffusion of the intermediate within the one or more cages and/or pores of the first catalyst.