Patents by Inventor Kenneth P. Keckler
Kenneth P. Keckler 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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Publication number: 20220162178Abstract: Novel processes for recovering solvents and isolating humin or humate materials from 5-hydroxymethylfurfural (HMF) and 2,5-furandicarboxylic acid (FDCA) pathway processes are described. In some embodiments, the process utilizes a thin film evaporator, such as a horizontal thin film evaporator (HTFE).Type: ApplicationFiled: April 1, 2020Publication date: May 26, 2022Inventors: Staffan Torssell, Marco Antonio Saucedo, Christopher Paul Dunckley, Kenneth P. Keckler
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Patent number: 9328920Abstract: The present invention relates generally to processes for preparing an inorganic sodium and/or chlorine contaminated low-rank coal feedstock for combustion in a fluidized fuel combustor to generate steam and, desirably, co-generate electricity.Type: GrantFiled: September 27, 2013Date of Patent: May 3, 2016Assignee: GreatPoint Energy, Inc.Inventors: Avinash Sirdeshpande, Kenneth P. Keckler, Earl T. Robinson, Pattabhi K. Raman
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Patent number: 9273260Abstract: The present invention relates generally to processes for preparing agglomerated particulate low-rank coal feedstocks of a particle size suitable for reaction in a fluidized-bed reactor and certain other gasification reactors and, in particular, for coal gasification and combustion applications. The present invention also relates to an integrated coal hydromethanation process including preparing and utilizing such agglomerated particulate low-rank coal feedstocks.Type: GrantFiled: September 27, 2013Date of Patent: March 1, 2016Assignee: GreatPoint Energy, Inc.Inventors: Earl T. Robinson, Kenneth P. Keckler, Pattabhi K. Raman, Avinash Sirdeshpande
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Patent number: 9034058Abstract: The present invention relates generally to processes for preparing agglomerated particulate low-rank coal feedstocks of a particle size suitable for reaction in certain gasification reactors and, in particular, for coal gasification. The present invention also relates to integrated coal gasification processes including preparing and utilizing such agglomerated particulate low-rank coal feedstocks.Type: GrantFiled: September 27, 2013Date of Patent: May 19, 2015Assignee: GreatPoint Energy, INc.Inventors: Earl T. Robinson, Kenneth P. Keckler, Pattabhi K. Raman, Avinash Sirdeshpande
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Patent number: 9034061Abstract: The present invention relates generally to processes for preparing agglomerated particulate low-rank coal feedstocks of a particle size suitable for reaction in a fluidized-bed reactor and certain other gasification reactors and, in particular, for coal gasification and combustion applications. The present invention also relates to integrated coal gasification and combustion processes including preparing and utilizing such agglomerated particulate low-rank coal feedstocks.Type: GrantFiled: September 27, 2013Date of Patent: May 19, 2015Assignee: GreatPoint Energy, Inc.Inventors: Earl T. Robinson, Kenneth P. Keckler, Pattabhi K. Raman, Avinash Sirdeshpande
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Publication number: 20140090584Abstract: The present invention relates generally to processes for preparing an inorganic sodium and/or chlorine contaminated low-rank coal feedstock for combustion in a fluidized fuel combustor to generate steam and, desirably, co-generate electricity.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Applicant: GreatPoint Energy, Inc.Inventors: Avinash Sirdeshpande, Kenneth P. Keckler, Earl T. Robinson, Pattabhi K. Raman
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Publication number: 20140094636Abstract: The present invention relates generally to processes for preparing agglomerated particulate low-rank coal feedstocks of a particle size suitable for reaction in a fluidized-bed reactor and certain other gasification reactors and, in particular, for coal gasification and combustion applications. The present invention also relates to an integrated coal hydromethanation process including preparing and utilizing such agglomerated particulate low-rank coal feedstocks.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Applicant: GreatPoint Energy, Inc.Inventors: Earl T. Robinson, Kenneth P. Keckler, Pattabhi K. Raman, Avinash Sirdeshpande
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Publication number: 20140091258Abstract: The present invention relates generally to processes for preparing agglomerated particulate low-rank coal feedstocks of a particle size suitable for reaction in a fluidized-bed reactor and certain other gasification reactors and, in particular, for coal gasification and combustion applications. The present invention also relates to integrated coal gasification and combustion processes including preparing and utilizing such agglomerated particulate low-rank coal feedstocks.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Applicant: GreatPoint Energy, Inc.Inventors: Earl T. Robinson, Kenneth P. Keckler, Pattabhi K. Raman, Avinash Sirdeshpande
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Publication number: 20140091259Abstract: The present invention relates generally to processes for preparing agglomerated particulate low-rank coal feedstocks of a particle size suitable for reaction in certain gasification reactors and, in particular, for coal gasification. The present invention also relates to integrated coal gasification processes including preparing and utilizing such agglomerated particulate low-rank coal feedstocks.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Applicant: GreatPoint Energy, Inc.Inventors: Earl T. Robinson, Kenneth P. Keckler, Pattabhi K. Raman, Avinash Sirdeshpande
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Publication number: 20080308463Abstract: Disclosed is a process which reduces the sulfur and/or nitrogen content of a distillate feedstock to produce a refinery transportation fuel or blending components for refinery transportation fuel, by contacting the feedstock with an oxygen-containing gas in an 5 oxidation/adsorption zone at oxidation conditions in the presence of an oxidation catalyst comprising a titanium-containing composition whereby the sulfur species are converted to sulfones and/or sulfoxides which are adsorbed onto the titanium-containing composition.Type: ApplicationFiled: December 22, 2005Publication date: December 18, 2008Applicant: BP Corporation North America Inc.Inventors: Kenneth P. Keckler, Janet L. Yedinak, Russell R. Simpson, Jeffrey T. Miller
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Patent number: 7442345Abstract: A new reactor apparatus that can be used to carry out chemical reactions in a fluidized catalyst bed at high temperatures with reduced afterburning or other undesirable downstream side reactions.Type: GrantFiled: May 7, 2004Date of Patent: October 28, 2008Assignee: Ineos USA LLCInventors: Louis R. Trott, David R. Wagner, Steven J. Rowe, Robert A. Gustaferro, Gregory A. Norenberg, Kenneth P. Keckler, Robert P. Hepfer
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Patent number: 7326391Abstract: A process for the recovery of unreacted ammonia from the effluent from a reaction zone used to produce acrylonitrile or methacrylonitrile comprising quenching the reactor effluent with an aqueous solution of ammonium phosphate in at least two stages, thereby capturing the ammonia component of the effluent. The captured ammonia may be recovered by heating the aqueous ammonium phosphate, which then may be recycled. Contaminants present in the aqueous ammonium phosphate may be removed, for example by solvent extraction or wet oxidation, prior to recycle.Type: GrantFiled: July 21, 2005Date of Patent: February 5, 2008Assignee: Ineos USA LLCInventors: Albert R. Shuki, Kenneth P. Keckler, Thomas L. Bowman, Thomas L. Szabo
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Patent number: 5959134Abstract: A process for the enhanced recovery of waste organics, mainly hydrogen cyanide (HCN) and acrylonitrile, from the process flare material obtained from the reactor effluent of an ammoxidation reaction of propylene or isobutylene.Type: GrantFiled: May 20, 1998Date of Patent: September 28, 1999Assignee: The Standard Oil CompanyInventors: Kenneth P. Keckler, Sanjay P. Godbole
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Patent number: 5457223Abstract: A process for the substantial or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing methanol into said reactor in the upper portion of the reactor at a location where the methanol reacts with at least a portion if not substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, methanol is introduced into the reactor at below its coking temperature. In particular, when an oxygen lean fluid bed catalyst is utilized, an additional oxygen containing gas is introduced into the reaction at a distance between about 8 to 14 inches from the methanol feed location.Type: GrantFiled: August 11, 1993Date of Patent: October 10, 1995Assignee: The Standard Oil CompanyInventors: Wilfrid G. Shaw, Kenneth L. Bigler, Louis R. Trott, Steve J. Miko, Vincent G. Reiling, Michael J. Seely, Dev D. Suresh, Maria S. Friedrich, Paul E. Bott, Edward J. Sockell, Albert R. Shuki, Jr., Kenneth P. Keckler, Frank J. Kocjancic, Steven J. Rowe
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Patent number: 5288473Abstract: A process for the substantial or complete elimination of ammonium sulfate generated during the production of acrylonitrile by the direct ammoxidation of propylene/propane, ammonia and an oxygen containing gas (e.g. air) over a fluid bed catalyst wherein the improvement comprises introducing an organic compound(s) into said reactor at a location where the compound(s) reacts with substantially all of the excess ammonia without affecting the acrylonitrile yield. Preferably, the organic compound is methanol which is introduced into the reactor at below its coking temperature.Type: GrantFiled: October 9, 1992Date of Patent: February 22, 1994Assignee: The Standard Oil CompanyInventors: Wilfrid G. Shaw, Kenneth L. Bigler, Louis R. Trott, Steve J. Miko, Vincent G. Reiling, Michael J. Seely, Dev D. Suresh, Maria S. Friedrich, Paul E. Bott, Edward J. Sockell, Albert R. Shuki, Jr., Kenneth P. Keckler, Frank J. Kojancic
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Patent number: 5234607Abstract: The invention is a process for starting up a wet oxidation system using essentially pure oxygen for oxidation of a concentrated wastewater. Flow of startup water and air is established through the wet oxidation system at an elevated temperature and pressure. An incremental increase in flow of oxygen and wastewater to the system commences while simultaneously an incremental decrease in flow of startup water and air occurs, raising system temperature in a controlled fashion. The incremental changes in flows are repeated until the wastewater and pure oxygen have reached about 100 percent of selected operating flows, the startup water and air flows have decreased to zero, and the system has attained the selected operating temperature, while maintaining a selected oxygen residual in the offgases.Type: GrantFiled: April 22, 1992Date of Patent: August 10, 1993Assignee: Zimpro Passavant Environment Systems Inc.Inventors: Bruce L. Brandenburg, Richard W. Lehmann, Gene W. Mueller, Kenneth P. Keckler
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Patent number: 5192453Abstract: A process is disclosed which limits the corrosion of the materials of construction of a wet oxidation system treating wastewaters. The process is particularly useful in the wet oxidation treatment of ammonium sulfate containing wastes such as acrylonitrile wastewaters. The wastewater is mixed with an oxygen containing gas such that a substantial residual oxygen gas concentration is maintained from before the stream-gas mixture is heated for wet oxidation until after the oxidized stream-gas mixture is cooled and separated. Preferably, in the treatment of acrylonitrile waste water the shutdown procedure comprises cooling said waste stream by introducing an aqueous liquid substantially free of organic impurities and containing a basic material.Type: GrantFiled: January 6, 1992Date of Patent: March 9, 1993Assignee: The Standard Oil CompanyInventors: Kenneth P. Keckler, Bruce L. Brandenburg, Joseph A. Momont, Richard W. Lehmann