Patents by Inventor Wayne G. Wnuck
Wayne G. Wnuck 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).
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Patent number: 7998456Abstract: The present invention provides a process for the production of hydrogen from the catalytic partial oxidation of a hydrocarbonaceous feedstock (3) with molecular oxygen (4) over a partial oxidation catalyst (6), which process comprises: during a reaction time interval contacting a first mixture of the hydrocarbonaceous feedstock and molecular oxygen with an overall oxygen-to-carbon ratio in the range of from 0.3 to 0.8 with the partial oxidation catalyst to convert the feedstock to a hydrogen-comprising gas and during a regeneration time interval contacting a second mixture of the hydrocarbonaceous feedstock and molecular oxygen with an oxygen-to-carbon ratio in the range of from 1.0 to 10 with the partial oxidation catalyst, in which process the regeneration time interval is in the range of from 2 to 10 seconds and the ratio of the reaction time interval to the regeneration time interval is at most 40.Type: GrantFiled: October 31, 2007Date of Patent: August 16, 2011Assignee: Shell Oil CompanyInventors: Haroldus Adrianus Johannes Van Dijk, Stephan Montel, Wayne G. Wnuck
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Publication number: 20100061921Abstract: The present invention provides a process for the production of hydrogen from the catalytic partial oxidation of a hydrocarbonaceous feedstock (3) with molecular oxygen (4) over a partial oxidation catalyst (6), which process comprises: during a reaction time interval contacting a first mixture of the hydrocarbonaceous feedstock and molecular oxygen with an overall oxygen-to-carbon ratio in the range of from 0.3 to 0.8 with the partial oxidation catalyst to convert the feedstock to a hydrogen-comprising gas and during a regeneration time interval contacting a second mixture of the hydrocarbonaceous feedstock and molecular oxygen with an oxygen-to-carbon ratio in the range of from 1.0 to 10 with the partial oxidation catalyst, in which process the regeneration time interval is in the range of from 2 to 10 seconds and the ratio of the reaction time interval to the regeneration time interval is at most 40.Type: ApplicationFiled: October 31, 2007Publication date: March 11, 2010Inventors: Haroldus Adrianus Johannes Van Dijk, Stephan Montel, Wayne G. Wnuck
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Patent number: 7601316Abstract: Oxides of nitrogen are adsorbed onto the surfaces of, and particulates are trapped in, pores of channels (130, 133, 139-151) in a porous, interdigitated ceramic particulate filter (57, 100) that has relative rotation with respect to a gas inlet distributor (76, 101). The distributor has a baffle (85) or ribs (121, 122) that causes constantly flowing engine exhaust (53) to enter the filter channels over a large portion of a revolution of the adsorption bed or the distributor, and causes constantly flowing syngas (54) to thereafter pass through those passages during a small portion of each revolution. Either the inlet gas distributor (101) or the filter bed (57) may be rotated to distribute the gases. Dual, alternately regenerated filters (35, 36) may be used.Type: GrantFiled: September 8, 2003Date of Patent: October 13, 2009Assignee: Shell Oil CompanyInventors: Ke Liu, Wayne G. Wnuck, John G. Buglass
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Patent number: 6964156Abstract: A catalytic partial oxidizer (30) provides syngas (hydrogen and carbon monoxide) to an apparatus intermittently using syngas such as valves (34) feeding NOx traps (35), for brief periods of time. During turndown times when syngas is not being used, either the output of the CPO is diverted (33) to the inlet (13) of an engine (12) through the engine gas recycle (EGR) system (43-46), or the amount of fuel (19) and exhaust (23) applied to the CPO is reduced (24, 26; 59, 60) so that the CPO merely stays warm and in a reduced state, thereby being ready to restart immediately. A mini-CPO (62) may provide syngas and heat to the major CPO (30) during the turndown time when syngas is not being used by the NOx traps.Type: GrantFiled: October 23, 2003Date of Patent: November 15, 2005Assignee: HydrogenSource LLCInventors: Ke Liu, Wayne G. Wnuck, Willem P. Leenhouts
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Patent number: 6955042Abstract: A single lean NOx trap (8) has an inlet manifold (10) with baffles (18–20) to divide the inlet manifold into three flow paths (11–13). Each flow path has a thermal reformer (24–26; CPO, (POX, or ATR) with an electric heater provided electric power by related lines (29–31). Fuel from a source (50) is controlled (45–46) to apply pulses of fuel through nozzles (40–42) into each corresponding path (11–13) in turn. A plurality of diesel particulate filters (14) are disposed in the flow paths (11–13) upstream of the lean NOx trap (8). A diesel oxidation catalyst (53) is disposed downstream of the lean NOx trap.Type: GrantFiled: June 30, 2004Date of Patent: October 18, 2005Assignee: HydrogenSource LLCInventors: Wayne G. Wnuck, Ke Liu
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Patent number: 6775973Abstract: Oxides of nitrogen are adsorbed onto the surfaces of gas passages (68) in a bed (57, 100) that has relative rotation with respect to a gas inlet distributor (76, 101). The manifold has a baffle (85) or ribs (121, 122) that causes constantly flowing engine exhaust (53) to enter the gas passages over a large portion of a revolution of the adsorption bed or the distributor, and causes constantly flowing regeneration gas (54) to thereafter pass through those passages during a small portion of each revolution. The passages may be formed by planar (66a) or helical (66b) radial walls (66), a serpentine wall (70), a monolith (126), or a honeycomb (127). Either the distributor (101) or the bed (57) may be rotated to distribute the gases.Type: GrantFiled: December 4, 2002Date of Patent: August 17, 2004Assignee: HydrogenSource LLCInventors: Ke Liu, Peter F. Foley, Eric A. Rohrbach, Wayne G. Wnuck
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Publication number: 20040107697Abstract: Oxides of nitrogen are adsorbed onto the surfaces of gas passages (68) in a bed (57, 100) that has relative rotation with respect to a gas inlet distributor (76, 101). The manifold has a baffle (85) or ribs (121, 122) that causes constantly flowing engine exhaust (53) to enter the gas passages over a large portion of a revolution of the adsorption bed or the distributor, and causes constantly flowing regeneration gas (54) to thereafter pass through those passages during a small portion of each revolution. The passages may be formed by planar (66a) or helical (66b) radial walls (66), a serpentine wall (70), a monolith (126), or a honeycomb (127). Either the distributor (101) or the bed (57) may be rotated to distribute the gases.Type: ApplicationFiled: December 4, 2002Publication date: June 10, 2004Inventors: Ke Liu, Peter F. Foley, Eric A. Rohrbach, Wayne G. Wnuck
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Patent number: 4714586Abstract: A method is disclosed for preparing a dimensionally stable electrode structure, particularly nickel-chromium anodes, for use in a molten carbonate fuel cell stack. A low-chromium to nickel alloy is provided and oxidized in a mildly oxidizing gas of sufficient oxidation potential to oxidize chromium in the alloy structure. Typically, a steam/H.sub.2 gas mixture in a ratio of about 100/1 and at a temperature below 800.degree. C. is used as the oxidizing medium. This method permits the use of less than 5 weight percent chromium in nickel alloy electrodes while obtaining good resistance to creep in the electrodes of a fuel cell stack.Type: GrantFiled: January 29, 1986Date of Patent: December 22, 1987Assignee: The United States of America as represented by the United States Department of EnergyInventors: Thomas E. Swarr, Wayne G. Wnuck
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Patent number: 4654195Abstract: A method for fabricating ribbed electrodes that accommodates the shrinkage which occurs during thermal cycling reducing the cracks caused by the confining stresses of a mold. A composition comprising a metal selected from the group consisting of nickel, copper and mixtures thereof with chromium onto a ribbed mold. The mold and composition are prefired in a reducing atmosphere forming a ribbed electrode. The ribbed electrode is removed from the mold and sintered in a reducing atmosphere.Type: GrantFiled: December 23, 1985Date of Patent: March 31, 1987Assignee: International Fuel Cells CorporationInventors: Wayne G. Wnuck, Bryan J. Dec, Raymond J. Jarvis
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Patent number: 4473543Abstract: High activity steam reforming catalysts are described particularly adapted for use in autothermal reforming processes. A rhodium catalyst on a calcium oxide impregnated alumina substrate allow the autothermal reforming process to take place with substantially no carbon plugging at oxygen to carbon ratios below what had been considered critical for avoiding carbon plugging of the catalyst in the past.Type: GrantFiled: August 4, 1983Date of Patent: September 25, 1984Assignee: United Technologies CorporationInventors: Herbert J. Setzer, Roger R. Lesieur, Sam Karavolis, Wayne G. Wnuck