Exxonmobil Technology and Engineering Company

Eugene Terefenko

Hilda B Vroman

Joseph M Falkowski

Karl Gottlieb Strohmaier

Allen Wayne Burton

Kanmi Mao

Michael A Marella

A method of making a molecular sieve may include: reacting a source selected from the group consisting of: a source of a tetrahedral element in the presence of a structure directing agent (SDA) selected from the group consisting of: Ar-L-Ar, Ar-L-Ar-L-Ar, Ar-L-Ar-L-NR3, and ArAr-L-ArAr, where Aris to a N-containing cationic aromatic ring, Ar is to a non-charged aromatic ring, L is a methylene chain of 3-6 carbon atoms, NR3is to a quaternary ammonium, and ArArand ArAr are a fused aromatic ring structure comprising both a N-containing cationic portion and a non-charged portion, to produce the molecular sieve.

Intramolecular pi-stacking structure directing agents and molecular sieves synthesized therefrom

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 C-Cdiquat of N,2-dimethylbenzimidazole structure directing agent to a temperature of at least 75° C. to produce a Rho zeolite.

Highly siliceous form of zeolite RHO

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Center Valley, PA, United States of America

Eugene Terefenko