Patents by Inventor Stefan E.F. Laux

Stefan E.F. Laux 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).

  • REFORMING METHANE AND HIGHER HYDROCARBONS IN SYNGAS STREAMS
    Publication number: 20160102259
    Abstract: Oxygen is added to a raw syngas stream that contains hydrogen and CO, one or more light hydrocarbons, and that may also contain tars, produced by gasification of carbonaceous feed material, while imparting heat at a rate greater than 125 BTU per pound of oxygen added, to partially oxidize light hydrocarbons and convert tars if present to lower molecular weight products.
    Type: Application
    Filed: December 18, 2015
    Publication date: April 14, 2016
    Inventors: LAWRENCE BOOL, SHRIKAR CHAKRAVARTI, STEFAN E.F. LAUX, RAYMOND F. DRNEVICH, DANTE P. BONAQUIST, DAVID R. THOMPSON
  • Oxygen to expand burner combustion capability
    Patent number: 9091442
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: July 28, 2015
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventor: Stefan E. F. Laux
  • Stabilizing combustion of oxygen and flue gas
    Patent number: 9091430
    Abstract: Flame stability of a burner that is operated with a mixture of oxygen and flue gas as the oxidant, is enhanced by including a second burner that combusts fuel with oxidant having a high O2 content.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: July 28, 2015
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Lawrence Bool, Stefan E. F. Laux, Kelly Fangmei Tian
  • Oxygen to expand burner combustion capability
    Patent number: 9091440
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: July 28, 2015
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventor: Stefan E. F. Laux
  • Oxygen to expand burner combustion capability
    Patent number: 9091441
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: July 28, 2015
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventor: Stefan E. F. Laux
  • OXYGEN TO EXPAND BURNER COMBUSTION CAPABILITY
    Publication number: 20130252182
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Application
    Filed: May 15, 2013
    Publication date: September 26, 2013
    Inventor: Stefan E.F. Laux
  • OXYGEN TO EXPAND BURNER COMBUSTION CAPABILITY
    Publication number: 20130244189
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Application
    Filed: May 14, 2013
    Publication date: September 19, 2013
    Inventor: Stefan E. F. Laux
  • OXYGEN TO EXPAND BURNER COMBUSTION CAPABILITY
    Publication number: 20130244188
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Application
    Filed: May 14, 2013
    Publication date: September 19, 2013
    Inventor: Stefan E.F. Laux
  • Oxygen to expand burner combustion capability
    Patent number: 8459986
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: June 11, 2013
    Assignee: Praxair Technology, Inc.
    Inventor: Stefan E. F. Laux
  • STABILIZING COMBUSTION OF OXYGEN AND FLUE GAS
    Publication number: 20130047900
    Abstract: Flame stability of a burner that is operated with a mixture of oxygen and flue gas as the oxidant, is enhanced by including a second burner that combusts fuel with oxidant having a high O2 content.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 28, 2013
    Inventors: Lawrence Bool, Stefan E.F. Laux, Kelly Fangmei Tian
  • REFORMING METHANE AND HIGHER HYDROCARBONS IN SYNGAS STREAMS
    Publication number: 20120291351
    Abstract: Oxygen is added to a raw syngas stream that contains hydrogen and CO, one or more light hydrocarbons, and that may also contain tars, produced by gasification of carbonaceous feed material, while imparting heat at a rate greater than 125 BTU per pound of oxygen added, to partially oxidize light hydrocarbons and convert tars if present to lower molecular weight products.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 22, 2012
    Inventors: Lawrence Bool, Shrikar Chakravartt, Stefan E.F. Laux, Raymond F. Drnevich, Dante P. Bonaquist, David R. Thompson
  • OXYGEN TO EXPAND BURNER COMBUSTION CAPABILITY
    Publication number: 20110123938
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Application
    Filed: January 31, 2011
    Publication date: May 26, 2011
    Inventor: Stefan E.F. Laux
  • INTEGRATED OXY-FUEL COMBUSTION AND NOX CONTROL
    Publication number: 20080153042
    Abstract: The efficiency of selective non-catalytic reduction reactions for converting NOx in a flue gas to molecular nitrogen is improved by producing the flue gas from combustion of fuel with oxidant having an oxygen concentration above that of air.
    Type: Application
    Filed: November 27, 2007
    Publication date: June 26, 2008
    Inventors: Stefan E.F. Laux, Lawrence E. Bool, Hisashi Kobayashi
  • Oxygen to expand burner combustion capability
    Publication number: 20070298357
    Abstract: A burner at which fuel cannot be combusted with air as the only source of oxygen for combustion in a stable flame at the burner when the feed rate of the fuel is too low, when the fuel is fed at too high an air-to-fuel mass ratio, when the fuel contains too high an amount of inert matter, or when the specific energy content of the fuel is too low, is modified by supplying oxidant containing more than 21 vol. % oxygen into the base of a flame at the burner, whereupon such fuels can be combusted at the burner.
    Type: Application
    Filed: June 27, 2006
    Publication date: December 27, 2007
    Inventor: Stefan E.F. Laux