Method for preparing a light olefin using an oxygen-containing compound, and device for use thereof
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United States of America Patent
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Aug 1, 2017
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Oct 20, 2016
app pub date -
Dec 3, 2013
filing date -
Dec 3, 2013
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Abstract
A method for preparing a light olefin using an oxygen-containing compound, and a device for use thereof, more specifically, taking methanol and/or dimethyl ether as main starting materials, using a multi-stage (n≧2) dense phase fluidized bed reactor and a multi-stage (m≧2) catalyst regenerator, which solves the problem in the prior art of the uniformity of catalyst carbon deposition and the carbon content being difficult to control and the light olefin selectivity being low.
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