Advanced cellulosic renewable fuels

Patent metadata

Field	Value
Publication number	US-9447344-B2
Application number	US-201514796496-A
Country	US
Kind code	B2
Filing date	Jul 10, 2015
Priority date	Sep 20, 2011
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

The invention relates to a process to manufacture advanced cellulosic gasolines. Dilute organic acids derived from pyrolized biomass are converted to their corresponding alcohols in a stand-alone hydrodeoxygenation unit followed by membrane pervaporation step to remove water. The alcohol product is blended directly into a neat hydrocarbon fuel basestock to make unadditized gasoline.

First claim

The invention claimed is:

1. A method for producing a renewable gasoline from cellulosic biomass comprising:
a) separating a cellulosic feedstream
in an ionic separator to generate a polyol stream comprising at least one of sugars and polyols and an organic stream comprising one or more organic acids and water;
b) generating hydrocarbons comprising alkanes from the polyol stream in a hydrotreating reactor and converting at least a portion of the hydrocarbons to isomerized gasoline range hydrocarbons in an isomerization reactor
c) generating alcohol from the organic stream, at least a portion of the hydrocarbons from the hydrotreating reactor and hydrogen in a hydrodeoxygenation reactor
d) separating the alcohol, water, and hydrogen in a cold separator, and removing water using a membrane separator; and
e) producing one or more product renewable gasoline streams comprising the alcohols, at least a portion of the hydrocarbons from the hydrotreating reactor and the isomerized gasoline range hydrocarbons.

2. The method of claim 1 , wherein said hydrodeoxygenation reactor comprises a catalyst selected from the group consisting of CuO, ZnO, Fe2O3, CuO/ZnO, CuO/Fe2O3, ZnO/Fe2O3, CuO/ZnO/Fe2O3, CuO/ZnO/Al2O3, CuO/Al2O3/SiO2, CuO/Fe2O3/Al2O3/SiO2, and combinations thereof.

3. The method of claim 1 , wherein said membrane separator comprises a membrane selected from the group consisting of hydrophilic, hydrophobic, organophillic, polydimethylsiloxane (PDMS), polyvinyl alcohol (PVA), polyimide, ceramic, zeolite, amorphous silica, hybrid membranes, and combinations thereof.

Assignees

• Phillips 66 Co

Inventors

• Kalakkunnath Sumod
• Truitt Matthew J
• Bae Jaehoon
• Phillips Cory B

Classifications

• C10G45/58 Primary

  to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins (C10G32/00 takes precedence; improving or increasing the octane number or aromatic content of naphtha C10G35/00) · CPC title

• C10G3/50

  in the presence of hydrogen, hydrogen donors or hydrogen generating compounds · CPC title

• C10L2270/023

  for gasoline engines · CPC title

• C10L2200/0469

  Renewables or materials of biological origin · CPC title

• Y02P30/20

  using bio-feedstock · CPC title