Patents by Inventor Erik G. A. Dahlquist

Erik G. A. Dahlquist has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • CFB black liquor gasification system operating at low pressures
    Patent number: 5425850
    Abstract: A black liquor gasification system intended for use as a replacement for a Tomlinson cycle, Chemical Recovery Unit, and which operates at a temperature below the ash melting temperature thereby removing the potential for smelt-water reactions and explosions. The subject black liquor gasification system is based on the use of a circulating fluidized bed operating at atmospheric pressure that produces dry, recoverable salts as well as low calorific gases to be used within the paper-making process.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: June 20, 1995
    Assignee: Combustion Engineering, Inc.
    Inventors: Michael C. Tanca, Erik G. A. Dahlquist, Sune Flink
  • Black liquier gasification process operating at low pressures using a circulating fluidized bed
    Patent number: 5284550
    Abstract: A black liquor gasification system intended for use as a replacement for a Tomlinson cycle, Chemical Recovery Unit, and which operates at a temperature below the ash melting temperature thereby removing the potential for smelt-water reactions and explosions. The subject black liquor gasification system is based on the use of a circulating fluidized bed operating at atmospheric pressure that produces dry, recoverable salts as well as low calorific gases to be used within the paper-making process.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: February 8, 1994
    Assignee: Combustion Engineering, Inc.
    Inventors: Michael C. Tanca, Erik G. A. Dahlquist, Sune Flink