title: Improved light olefin yield from methyl bromide coupling over modified SAPO-34 molecular sieves.
abstract: As an alternative to the partial oxidation of methane to synthesis gas followed by methanol synthesis and the subsequent generation of olefins, we have studied the production of light olefins (ethylene and propylene) from the reaction of methyl bromide over various modified microporous silico-aluminophosphate molecular-sieve catalysts with an emphasis on SAPO-34. Some comparisons of methyl halides and methanol as reaction intermediates in their conversion to olefins are presented. Increasing the ratio of Si/Al and incorporation of Co into the catalyst framework improved the methyl bromide yield of light olefins over that obtained using standard SAPO-34.
authors.affiliation: GRT, Inc., Santa Barbara, California, USA.
authors.forename: Aihua
authors.initials: A
authors.lastname: Zhang
authors.forename: Shouli
authors.initials: S
authors.lastname: Sun
authors.forename: Zachary J A
authors.initials: ZJ
authors.lastname: Komon
authors.forename: Neil
authors.initials: N
authors.lastname: Osterwalder
authors.forename: Sagar
authors.initials: S
authors.lastname: Gadewar
authors.forename: Peter
authors.initials: P
authors.lastname: Stoimenov
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Auerbach
authors.forename: Galen D
authors.initials: GD
authors.lastname: Stucky
authors.forename: Eric W
authors.initials: EW
authors.lastname: McFarland