Patents by Inventor Mahendra Joshi

Mahendra Joshi 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).

  • Publication number: 20120145602
    Abstract: A process for separating bitumen from bitumen ore material includes extracting bitumen with a hydrocarbon solvent to produce a bitumen-enriched solvent phase and tailings. The tailings are dried or stripped in a dryer to remove any remaining hydrocarbon solvent. The amount of solvent discharged in the tailings may be less than 4 bbl per 1000 bbl of recovered bitumen.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 14, 2012
    Inventors: Julian Kift, Mahendra Joshi, Whip C. Thompson, Cherish M. Hoffman
  • Publication number: 20120145603
    Abstract: A process for separating bitumen from bitumen ore material includes extracting bitumen with a hydrocarbon solvent to produce a bitumen-enriched solvent phase and tailings. The tailings are dried or stripped in a dryer to remove any remaining hydrocarbon solvent. The amount of solvent discharged in the tailings may be less than 4 bbl per 1000 bbl of recovered bitumen.
    Type: Application
    Filed: October 14, 2011
    Publication date: June 14, 2012
    Applicant: MARATHON OIL CANADA CORPORATION
    Inventors: Julian Kift, Mahendra Joshi, Cherish M. Hoffman, Whip C. Thompson
  • Publication number: 20120101014
    Abstract: A process for producing biofuels and biolubricants from lipid material includes reacting lipid material with a motive fluid in a reactor. The reactor may be configured to cause a high energy collision between the motive fluid and the lipid material that facilitates the reactions that result in biofuels and biolubricants. A heavy fraction of the effluent may be repeatedly recycled back through the reactor until most, if not all, of the lipid material has been converted.
    Type: Application
    Filed: October 25, 2010
    Publication date: April 26, 2012
    Inventors: Jose Armando Salazar-Guillen, Mahendra Joshi
  • Publication number: 20110180459
    Abstract: Methods for preparing solvent-dry, stackable tailings. The method can include the steps of adding a first quantity of first solvent to a bitumen material to form a first mixture, separating a first quantity of bitumen-enriched solvent from the first mixture and thereby creating first solvent-wet tailings, adding a quantity of second solvent to first solvent-wet tailings to separate a first quantity of first solvent component from the first solvent-wet tailings and thereby producing second solvent-wet tailings, and adding a quantity of water to the second solvent-wet tailings to separate a first quantity of second solvent component from the second solvent-wet tailings and thereby forming solvent-dry, stackable tailings.
    Type: Application
    Filed: November 30, 2010
    Publication date: July 28, 2011
    Applicant: MARATHON OIL CANADA CORPORATION
    Inventors: Willem P.C. Duyvesteyn, Mahendra Joshi, Julian Kift, Dominic J. Zelnik, Whip C. Thompson, Cherish M. Hoffman
  • Publication number: 20080020334
    Abstract: Combustion system comprising a furnace having a thermal load and a combustion atmosphere, wherein the thermal load and combustion atmosphere are disposed within the furnace; one or more fuel lances adapted to inject fuel into the combustion atmosphere; and one or more igniters associated with the one or more fuel lances and adapted to ignite the fuel injected by the one or more fuel lances.
    Type: Application
    Filed: July 31, 2007
    Publication date: January 24, 2008
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Mahendra Joshi, Aleksandar Slavejkov, Xianming Li
  • Publication number: 20070254251
    Abstract: Burner assembly comprising (a) an elongated body having a periphery, a discharge end adjacent a combustion zone, and an axis, wherein the axis extends into the combustion zone; (b) one or more oxidant nozzles disposed at the discharge end of the elongated body and adapted to discharge a gaseous oxidant into the combustion zone; and (c) one or more fuel nozzles disposed at the discharge end of the elongated body and adapted to discharge a fuel into the combustion zone. At least one of the oxidant and fuel nozzles is characterized by a shape factor, ?, that is greater than about 10, wherein ? is a dimensionless parameter defined as ?=P2/2A where P is the perimeter dimension of the discharge opening and A is the area of the discharge opening.
    Type: Application
    Filed: April 26, 2006
    Publication date: November 1, 2007
    Inventors: Jin Cao, Mahendra Joshi, Aleksandar Slavejkov
  • Publication number: 20070099141
    Abstract: The present invention relates to a method and furnace for generating straightened flames in a steam methane reformer or ethylene cracking furnace where fuel-staged burners are used. Fuel staging may be used for reducing NOx emissions. Criteria for generating straightened flames are provided. These criteria relate to oxidant conduit geometry and furnace geometry. Techniques for modifying the furnace and/or burners to achieve these criteria are also provided.
    Type: Application
    Filed: November 3, 2005
    Publication date: May 3, 2007
    Inventors: Mahendra Joshi, Xianming Li, William Licht, Aleksandar Slavejkov, Stephen DiMartino
  • Publication number: 20070048679
    Abstract: A combustion device and combustion method for mixing a fuel and a fluid to form a diluted fuel mixture and passing the diluted fuel mixture through a nozzle. The nozzle comprises a nozzle body having an inlet face, an outlet face, and an inlet flow axis passing through the inlet face and the outlet face, and one or more slots extending through the nozzle body from the inlet face to the outlet face, each slot having a slot axis.
    Type: Application
    Filed: October 12, 2006
    Publication date: March 1, 2007
    Inventors: Mahendra Joshi, Xianming Li, Aleksandar Slavejkov
  • Publication number: 20060275724
    Abstract: A furnace combustion system includes a plurality of burners adapted to generate a plurality of flames and an oxidant port disposed between and surrounded by at least two of the burners. Each burner is spaced apart from another burner and adapted to combust a stream of a first fuel or an other fuel with a stream of a first oxidant or an other oxidant and to generate a flame. The oxidant port is adapted to transmit at least one jet of the first oxidant or the other oxidant axially between at least two of the flames. The at least one jet is transmitted from the oxidant port at a controlled flow rate. At least a portion of the first oxidant or the other oxidant in the jet is required to complete combustion of at least a portion of at least one stream of the first fuel or the other fuel.
    Type: Application
    Filed: June 2, 2005
    Publication date: December 7, 2006
    Inventors: Mahendra Joshi, Xianming Li
  • Publication number: 20060057517
    Abstract: A method of combustion in a furnace comprising a firing zone and an exhaust zone, three oxidants and fuel comprising the steps of: introducing fuel into said firing zone; introducing a first oxidant into the firing zone; introducing a second oxidant into the firing zone; and introducing a third oxidant into the exhaust zone; wherein during said step of introducing a first oxidant, the step of introducing a second oxidant, and the step of introducing a third oxidant occur.
    Type: Application
    Filed: September 1, 2005
    Publication date: March 16, 2006
    Inventors: Mahendra Joshi, Michael Habel, Kevin Lievre
  • Publication number: 20060000395
    Abstract: Combustion system comprising a furnace having a thermal load and a combustion atmosphere disposed therein; one or more fuel lances adapted to inject fuel into the combustion atmosphere; and one or more igniters associated with the one or more fuel lances and adapted to ignite the fuel injected by the one or more fuel lances into the combustion atmosphere.
    Type: Application
    Filed: July 1, 2004
    Publication date: January 5, 2006
    Inventors: Mahendra Joshi, Aleksandar Slavejkov, Xianming Li
  • Publication number: 20050230500
    Abstract: A system and method are disclosed for lancing gas into an environment, such as a furnace, wherein an inner conduit is in communication with a gas supply and adapted to transport a gas at a first mass flow rate, and an outer conduit is in communication with a gas supply and adapted to transport a gas at a second mass flow rate. The first mass flow rate is greater than the second mass flow rate, preferably at least two times greater. The distal end of the inner conduit is preferably recessed back at a distance from the distal end of the outer conduit.
    Type: Application
    Filed: April 13, 2005
    Publication date: October 20, 2005
    Inventors: Ovidiu Marin, Mahendra Joshi, Olivier Charon, Harley Borders
  • Patent number: 6688876
    Abstract: A process for combustion with the aid of a liquid fuel and a gaseous oxidizer containing from 20% to 100% volume of oxygen, in which the fuel is injected with the aid of an injector. The injector, which has a height “d”, is placed inside a glory hole. The glory hole has a height “D” at the end thereof corresponding to the ejection of the gaseous mixture towards the zone of heating of a charge. A coefficient “S” in the following equation is maintained at a value less than or equal to 1 for substantially the entire duration of combustion to ensure the stability of the flame.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: February 10, 2004
    Assignee: L'Air Liquide Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Olivier Delabroy, Pierre Bodelin, Mahendra Joshi, Bernard Labegore, François Lacas
  • Publication number: 20020048735
    Abstract: A process for combustion with the aid of a liquid fuel and a gaseous oxidizer containing from 20% to 100% volume of oxygen, in which the fuel is injected with the aid of an injector. The injector, which has a height “d”, is placed inside a glory hole. The glory hole has a height “D” at the end thereof corresponding to the ejection of the gaseous mixture towards the zone of heating of a charge. A coefficient “S” in the following equation is maintained at a value less than or equal to 1 for substantially the entire duration of combustion to ensure the stability of the flame.
    Type: Application
    Filed: June 1, 2001
    Publication date: April 25, 2002
    Inventors: Olivier Delabroy, Pierre Bodelin, Mahendra Joshi, Bernard Labegore, Francois Lacas