Process for converting oxygenates to aromatic hydrocarbons
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United States of America Patent
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Oct 17, 2017
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app pub date -
Dec 4, 2014
filing date -
Dec 20, 2013
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Abstract
Processes for catalytically converting oxygenates to hydrocarbon products having an increased C6-C8 aromatics content therein. A first mixture comprising ≧10.0 wt. % of at least one oxygenate, based on the weight of the first mixture, contacts a catalyst in a fluidized bed reactor to produce a product stream including water, one or more hydrocarbons comprising ≧30.0 wt. % of aromatics, based on the weight of the hydrocarbons in the product stream, hydrogen, and one or more oxygenates. The catalyst comprises at least one molecular sieve, a binder, and at least one element selected from Groups 2-14 of the Periodic Table. At least one water-rich stream, at least one aromatic-rich hydrocarbon stream, and at least one aromatic-depleted hydrocarbon stream are separated from the product stream, and at least a portion of one of the aromatic-rich hydrocarbon stream or the aromatic-depleted hydrocarbon stream is recycled back to the reactor.
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