Synthesis of DME using a fluid pluralized bed reactor
AssigneeUnitel Technologies, Inc.
InventorsSarabjit S. Randhava, Richard L. Kao, Todd L. Harvey
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Abstract
This invention discloses a method for making a dimethylether (DME) product from a synthesis gas (syngas) in the presence of a catalyst in a fluid pluralized bed reactor operating in the gas phase. The reactions generate a significant amount of heat and the heat management is balanced between supplying quench recycle syngas to the pluralized sections along the reactor and also by controlling the preheat temperature of the reactant streams. Gas phase fluidization of the catalyst is controlled so that the pluralized reactive zones are maintained in a backmix configuration.
Claims15
A process for making DME product in a fluid pluralized bed reactor, comprising:
- flowing a syngas containing hydrogen and carbon monoxide through a fluid pluralized bed reactor at a superficial gas velocity ranges from 0.1 msec to 2.0 msec;
- contacting the syngas with a bifunctional catalyst in a dense phase fluid pluralized bed reactor having a catalyst bed height to diameter ratio of not greater than 10:1 so as to form DME product;
- and separating the catalyst from the product gas in the disengaging zone via one or more cyclones equipped with diplegs.
Dependencies are inferred from the claim text.