Patents Assigned to Hismelt Corporation Pty Limited
  • Method and apparatus for treating hot gases
    Patent number: 5759495
    Abstract: A method and apparatus for treating hot process gases produced in high temperature processes in a circulating fluidized bed reactor. The reactor (10) includes a mixing chamber (12), a particle separator (16) and a return duct (18) for returning the circulating mass from the particle separator to the mixing chamber. The return opening (24) of the return duct is so arranged that the flow of solids entering the mixing chamber via the opening is directed substantially downwardly. The inlet (22) for hot process gas is so arranged as to allow the hot process gas to flow into the mixing chamber as a substantially upwardly directed solids flow so that the solids flow comes into contact with the gas flow.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: June 2, 1998
    Assignees: A. Ahlstrom Corporation, Hismelt Corporation PTY. Limited
    Inventor: Timo Hyppanen
  • Method and apparatus for treating hot gases
    Patent number: 5585071
    Abstract: A method and apparatus for treating hot process gases produced in high temperature processes in a circulating fluidized bed reactor. The reactor (10) includes a mixing chamber (12), a particle separator (16) and a return duct (18) for returning the circulating mass from the particle separator to the mixing chamber. The return opening (24) of the return duct is so arranged that the flow of solids entering the mixing chamber via the opening is directed substantially downwardly. The inlet (22) for hot process gas is so arranged as to allow the hot process gas to flow into the mixing chamber as a substantially upwardly directed solids flow so that the solids flow comes into contact with the gas flow.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: December 17, 1996
    Assignees: A. Ahlstrom Corporation, Hismelt Corporation Pty. Limited
    Inventor: Timo Hyppanen
  • Apparatus for treating gases and particulate solids in a fluid bed
    Patent number: 5386974
    Abstract: A method for treating gases and solids in a fluid bed, the fluid bed reactor substantially comprising, regarded downstream, a mixing chamber, a riser pipe and a cyclone with a solids return pipe to the mixing chamber, the gases being introduced into the mixing chamber at a gas rate immediately before the inlet port of the mixing chamber of more than 35 m/sec.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: February 7, 1995
    Assignees: Hismelt Corporation Pty Limited, A. Ahlstrom Corporation
    Inventors: Gregory J. Hardie, John M. Ganser, Ian D. Webb, Timo Hyppanen, Kari Myohanen, Ismo Nopanen
  • Method for treating gas and particulate solids in a fluid bed
    Patent number: 5330556
    Abstract: A method for treating gases and solids in a fluid bed, the fluid bed reactor substantially comprising, regarded downstream, a mixing chamber, a riser pipe and a cyclone with a solids return pipe to the mixing chamber, the gases being introduced into the mixing chamber at a gas rate immediately before the inlet port of the mixing chamber of more than 35 m/sec.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: July 19, 1994
    Assignees: Hismelt Corporation Pty Limited, Ahlstrom Corporation
    Inventors: Gregory J. Hardie, John M. Ganser, Ian D. Webb, Timo Hyppanen, Karl Myohanen, Ismo Nopanen