Vapor integration in the ethanol-to-jet fuel process

Abstract

An ethanol dehydration process is provided, in which the steam to ethanol ratio is 1.0-2.0 wt / wt, preferably 1.5 wt / wt. Steam can be taken from outside the dehydration process, for example from an oligomerization or dimerization reaction.

Claims

1. A process for ethanol dehydration, To separate the ethanol supply flow into a first charge flow and a second charge flow, Adding a certain amount of vapor to the first charge flow, where the vapor-to-ethanol ratio is 1.0 to 2.0 wt / wt, and The first charge flow and the second charge flow are reacted under reaction conditions in the presence of a catalyst to generate an ethylene effluent flow. A process that includes this.

2. The process according to claim 1, wherein a portion of the vapor is taken in from outside the ethanol dehydration process.

3. The process according to claim 2, wherein a portion of the water is removed to minimize the accumulation of impurities.

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