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Process for the production of jet-range hydrocarbons

a hydrocarbon and jet-range technology, applied in the field of jet-range hydrocarbon production, can solve the problems of loss of potential distillate yield and yield loss, and achieve the effect of increasing flow rate and reducing temperature rise in the oligomerization reactor

Inactive Publication Date: 2016-10-27
UOP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent talks about a process for making certain chemicals using a specific type of reaction. The invention aims to prevent the temperature in the reaction from rising too much during the process. This is done by increasing the flow rate of one of the components involved in the reaction. The technical effect is that it helps to control the temperature and make the chemicals more efficiently.

Problems solved by technology

Hydrogen transfer from the saturated diluent to the light olefinic feed to the oligomerization reactor can cause yield loss by saturating the light olefin feeds into paraffins.
Since the desired product is a distillate range material, conversion of the olefins into saturated liquefied petroleum gas amounts to a loss of potential distillate yield, and thus is considered undesirable.

Method used

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  • Process for the production of jet-range hydrocarbons

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Embodiment Construction

[0021]As used herein, the term “stream” can include various hydrocarbon molecules and other substances. Moreover, the term “stream comprising Cx hydrocarbons” or “stream comprising Cx olefins” can include a stream comprising hydrocarbon or olefin molecules, respectively, with “x” number of carbon atoms, suitably a stream with a majority of hydrocarbons or olefins, respectively, with “x” number of carbon atoms and preferably a stream with at least 75 wt % hydrocarbons or olefin molecules, respectively, with “x” number of carbon atoms. Moreover, the term “stream comprising Cx+ hydrocarbons” or “stream comprising Cx+ olefins” can include a stream comprising a majority of hydrocarbon or olefin molecules, respectively, with more than or equal to “x” carbon atoms and suitably less than 10 wt % and preferably less than 1 wt % hydrocarbon or olefin molecules, respectively, with x−1 carbon atoms. Lastly, the term “Cx− stream” can include a stream comprising a majority of hydrocarbon or olefi...

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PUM

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Abstract

A method for producing jet-range hydrocarbons includes passing a renewable olefin feedstock comprising C3 to C8 olefins to an oligomerization reactor containing a zeolite catalyst to produce an oligomerized effluent, separating the oligomerized effluent into at least a light stream, and a heavy olefin stream. At least a first portion of the heavy olefin stream is recycled to the oligomerization reactor to dilute the renewable olefin feedstock. portion of heavy olefin stream may be hydrogenated and separated to provide a jet range hydrocarbon product.

Description

FIELD OF THE INVENTION[0001]The present disclosure generally relates to methods for producing renewable fuels and chemicals from biorenewable sources and the renewable fuels and chemicals produced thereby, and more particularly relates to methods for producing jet-range hydrocarbons from alkanols, including for example isobutanol, and the jet-range hydrocarbons produced thereby.BACKGROUND OF THE INVENTION[0002]As the worldwide demand for fuel increases, interest in sources other than crude oil from which to produce transportation fuels, including aviation fuels, is ever increasing. For example, due to the growing environmental concerns over fossil fuel extraction and economic concerns over exhausting fossil fuel deposits, there is a demand for using an alternate or “green” feed source for producing hydrocarbons for use as transportation fuels and for use in other industries. Such sources of interest include, for example, biorenewable sources, such as vegetable and seed oils, animal ...

Claims

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Application Information

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IPC IPC(8): C10G69/12C10L1/04C10G50/00
CPCC10G69/126C10G50/00C10L1/04C10L2290/10C10L2200/043C10L2270/04C10L2200/0469C10G2300/1088C10G2400/08C10G2400/22
Inventor FICHTL, GEOFFREY W.FREY, STANLEY J.LUEBKE, CHARLES P.NICHOLAS, CHRISTOPHER P.SULLIVAN, DANA K.
Owner UOP LLC