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- W2272535560 abstract "Acidity plays an important role in the conversion of methanol and dimethyl ether (DME) to hydrocarbons and oxygenates. In the conversion to hydrocarbons over zeolite catalyst, Broensted acidity is the main contributor to the first hydrocarbon formed. Here, acidity is also an important factor in determining olefin, paraffin, and aromatic content in the final product distribution. Catalyst life has also been found to be related to acidity content in zeolites. DME conversion to oxygenates is especially dependent on high acidity catalysts. Superacids like BF{sub 3}, HF-BF{sub 3}, and CF{sub 3}COOH have been used in the past for conversion of DME in carbonylation reactions to form methyl acetate and acetic acid at high pressures. Recently, heteropoly acids and their corresponding metal substituted salts have been used to convert DME to industrially important petrochemicals resulting in shorter reaction times and without the use of harsh operating conditions." @default.
- W2272535560 created "2016-06-24" @default.
- W2272535560 date "1997-11-01" @default.
- W2272535560 modified "2023-09-25" @default.
- W2272535560 title "97/04564 Role of acid catalysis in dimethyl ether conversion processes" @default.
- W2272535560 doi "https://doi.org/10.1016/s0140-6701(97)81859-0" @default.
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