Abstract: An apparatus for carrying out a multi-step process of converting hydrocarbon fuel to a substantially pure hydrogen gas feed includes a plurality of modules arranged in a nested manner along a common axis. The multi-step process includes: providing a fuel processor having a plurality of modules arranged so that they are nested one within the other; and feeding the hydrocarbon fuel successively through each of the modules in the reactor to produce the hydrogen rich gas.
Abstract: An apparatus for carrying out a multi-step process of converting hydrocarbon fuel to a substantially pure hydrogen gas feed includes a plurality of reaction zones arranged in an insulated, box-shaped, compact fuel processor. The multi-step process includes preheating the hydrocarbon fuel utilizing integration with the inherent exothermic processes utilized with the fuel processor, reacting the preheated hydrocarbon fuel to form the hydrogen rich gas, and purifying the hydrogen rich gas to produce a gas that is suitable for consumption in a fuel cell.
Type:
Grant
Filed:
April 26, 2002
Date of Patent:
September 14, 2004
Assignee:
Texaco Inc.
Inventors:
Robert Childress, John R. Farrell, Wendell B. Leimbach, James W. Marshall
Abstract: This invention involves heat integration of a solvent deasphalting process with a gasification process and an improved process for separating a resin phase from a solvent solution comprising a solvent, deasphalted oil (DAO) and resin. This improved process comprises heating the solvent solution so as to precipitate the resin from the solvent solution, and then separating the resin and some solvent from the solvent solution. This will produce a resin product and a mixture comprising the DAO and the remaining solvent. The DAO/solvent mixture is then boiled so as to vaporize a fraction of the solvent, with waste heat from a gasification unit providing the heat source for the boiling. The vaporized solvent is removed from the DAO/solvent mixture leaving a resin-free DAO product that contains any unvaporized solvent. The vaporized solvent is used for heating the aforementioned solvent solution and preheating the resin-free DAO/solvent mixture.
Type:
Grant
Filed:
August 22, 2000
Date of Patent:
March 18, 2003
Assignee:
Texaco Development Corporation
Inventors:
Paul S. Wallace, Kay A. Johnson, Clint F. Penrose, Jacqueline G. Niccum