And Liquid Contact (e.g., Scrubbing, Sorption, Etc.) Patents (Class 95/92)
Sweep gas used on solid sorbent (Class 95/93)
And recycle or reuse of contact liquid for further contact (Class 95/94)
  • Process for cooling the feed gas to gas separation systems
    Patent number: 5306331
    Abstract: The present invention provides a process for utilizing one stream from a gas separation unit in an evaporation cooler to provide cool water which is used to cool the feed gas mixture by direct or indirect contact prior to entering the gas separation unit.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: April 26, 1994
    Assignee: Permea, Inc.
    Inventors: Steven R. Auvil, Rodney J. Allam, Paul A. Webley, Philip J. Young
  • Vapour recovery system for a fuel filling installation
    Patent number: 5299605
    Abstract: A vapor recovery system for a fuel filling installation in which the recovered air-vapor mixture is pumped to the submerged end of a discharge pipe. The discharge pipe is connected to a closed tube which extends along the bottom of an underground fuel tank. The closed tube has a porosity that generates very small bubbles from the air-vapor mixture that flows through the fuel within the tank. A vent pipe for the underground tank separates air from the air-vapor mixture through decreasing density separation by means of a large cross-section for the vent pipe and by providing baffles in the pipe interior.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: April 5, 1994
    Assignee: Nuovopignone-Industrie Meccaniche e Fonderia SpA
    Inventors: Giorgio Bergamini, Ernesto Paris
  • Method and apparatus for concentrating chlorine gas
    Patent number: 5296017
    Abstract: A method and an apparatus for concentrating/purifying a chlorine gas are disclosed in which a pressure swing adsorption method for alternately repeating an adsorbing operation and a desorbing operation employing one or more adsorption towers packed with an adsorbent for adsorbing the chlorine gas are used to obtain a high-purity concentrated/purified chlorine gas and an exhaust gas containing virtually no chlorine gas is obtained from the chlorine gas containing impurities by terminating the adsorption operation when the rate of temperature rise near the outlet end of an adsorption tower due to adsorption of chlorine therein rises above a predetermined amount.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: March 22, 1994
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Yoshitsugu Kono, Masaaki Ura, Hiroyuki Itoh, Satoshi Tsuruda
  • Vent gas processing scheme with vacuum swing adsorption
    Patent number: 5259853
    Abstract: An integrated process for treating a vent gas stream containing halogenated organic compounds to produce a clean vent gas with vacuum swing adsorption of the halogenated organic compounds and the recycle of a gaseous stream from the halogenated organic compound recovery section. A liquid sponge oil containing halogenated organic compounds is contacted and admixed with the evacuated effluent from the adsorption zone to prevent the accumulation of normally gaseous hydrocarbonaceous compounds.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: November 9, 1993
    Assignee: UOP
    Inventors: Robert S. Brasier, Steven P. Lankton, Richard T. Maurer, Kirit M. Patel