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Methods and systems for generating polyols

  • US 20080025903A1
  • Filed: 05/07/2007
  • Published: 01/31/2008
  • Est. Priority Date: 05/08/2006
  • Status: Active Grant
First Claim
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1. A method of generating an oxygenated compound, the method comprising the steps of:

  • a) contacting a first catalytic material comprising one or more Group VIII metals with a first portion of an aqueous feedstock solution comprising water and at least one water soluble oxygenated hydrocarbon having two or more carbon atoms, at;

    i. a temperature of about 80°

    C. to 400°

    C.;

    ii. a weight hourly space velocity of at least about 1.0 gram of the oxygenated hydrocarbon per gram of the first catalytic material per hour; and

    iii. a pressure where the water and the oxygenated hydrocarbons are condensed liquids, to produce aqueous phase reforming (APR) hydrogen; and

    b) reacting the APR hydrogen with a second portion of the feedstock solution over a second catalytic material, the second catalytic material different than the first catalytic material and selected from the group consisting of;

    iron, ruthenium, copper, rhenium, cobalt, nickel, alloys thereof, and mixtures thereof, at;

    i. a temperature of about 100°

    C. to 300°

    C.; and

    ii. a pressure of about 200 psig to about 1200 psig, to produce a reaction product comprising one or more oxygenated compounds selected from the group consisting of a polyol, a ketone, an aldehyde, a carboxylic acid and an alcohol.

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