Patents Assigned to Woodland Chemical Systems, Inc.
  • Publication number: 20070270511
    Abstract: A method and apparatus for synthesizing ethanol using synthetic routes via synthesis gas are disclosed. A method and apparatus for gasifying biomass, such as biomass, in a steam gasifier that employs a fluidized bed and heating using hot flue gases from the combustion of synthesis gas is described. Methods and apparatus for converting synthesis gas into ethanol are also disclosed, using stepwise catalytic reactions to convert the carbon monoxide and hydrogen into ethanol using catalysts including iridium acetate.
    Type: Application
    Filed: April 5, 2007
    Publication date: November 22, 2007
    Applicant: Woodland Chemical Systems Inc.
    Inventors: Larry Melnichuk, Karen Kelly, Robert Davis
  • Patent number: 6919488
    Abstract: A process for producing saleable liquids from organic material comprising the following steps. Providing organic material and separating it into solids, liquids and vapor. Reacting the liquids, combining it with water vapor and producing a volatized gas stream. Removing nitrogen dioxide from the gas stream to produce a scrubbed volatized gas stream. Reacting the scrubbed volatized gas stream with water vapor to produce a combined volatized gas stream. Removing carbon dioxide from the combined volatized gas stream to produce a subtracted volatized gas stream. Reacting the subtracted volatized gas stream with methanol to produce an enhanced volatized gas stream. Distilling the enhanced volatized gas stream to produce ethanol.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: July 19, 2005
    Assignee: Woodland Chemical Systems, Inc.
    Inventors: Larry Jack Melnichuk, Karen Venita (Sue) Kelly
  • Patent number: 6747067
    Abstract: A process for the production of oxygenated C2 hydrocarbons from cellulose is disclosed. The input cellulose waste is gasified using steam in the absence of air and the primary gaseous products of carbon monoxide and hydrogen are subjected to heat, pressure, and catalysts to form methyl alcohol. Carbon monoxide is added to the methyl alcohol and further subjected to heat, pressure and catalysts to form acetic acid. The acetic acid is purified using a distillation tower, and removed for sale. Output production is increased by adding further carbon monoxide and hydrogen from burners used to heat the gasifiers. Further carbon monoxide and hydrogen are also produced by steam gasification of the carbon residue to promote a water/gas shift. These gases are fed into the gas stream produced by the gasification of cellulose, and provide more feedstock for the reactions.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: June 8, 2004
    Assignee: Woodland Chemical Systems, Inc.
    Inventors: Larry Jack Melnichuk, Karen Venita Kelly