公开(公告)号：US11939225B2

公开(公告)日：2024-03-26

申请号：US17285546

申请日：2019-11-01

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Joseph M. Falkowski ,  Hilda Bouza Vroman ,  Allen W. Burton ,  Eugene Terefenko ,  Kanmi Mao ,  Karl G. Strohmaier

IPC: B01J20/18 ,  B01D53/047 ,  C01B39/48

CPC classification number: C01B39/48 ,  B01D53/047 ,  B01J20/186 ,  B01D2253/116 ,  B01D2253/306 ,  B01D2253/311 ,  B01D2256/245 ,  B01D2257/504 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16

Abstract: A composition can include a Rho zeolite with a RHO topology having a Si to B ratio or a Si to Al ratio greater than or equal to 8. Making such a composition can include heating an aqueous reaction mixture having a molar ratio of atomic Si to atomic B of about 4 to about 50 or a molar ratio of atomic Si to atomic Al of about 4 to about 50 in the presence of a C4-C6 diquat of N,2-dimethylbenzimidazole structure directing agent to a temperature of at least 75° C. to produce a Rho zeolite.