Patents by Inventor Howard L. Fang
Howard L. Fang 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: 10808179Abstract: The present invention provides apparatuses and processes for producing high octane fuel from synthesis gas. The process combines transalkylation and zeolite-forming/aromatization in conjunction with a single recycle loop configuration in order to effectively promote the fuel quality, particularly octane rating. The process involves adding a step for enriching octane of the fuel coming from the single recycle loop process. Preferably, the enrichment step takes place in an octane enrichment reactor containing two different catalysts, a zeolite-forming/aromatization catalyst followed by a transalkylation catalyst. The final fuel product preferably has an octane of about 92 to about 112.Type: GrantFiled: September 17, 2019Date of Patent: October 20, 2020Assignee: Primus Green Energy Inc.Inventors: Meifang Qin, Howard L. Fang, Zhong He, Ricardo Orench, Zhiyi Wu, Arie Toren
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Publication number: 20200010766Abstract: The present invention provides apparatuses and processes for producing high octane fuel from synthesis gas. The process combines transalkylation and zeolite-forming/aromatization in conjunction with a single recycle loop configuration in order to effectively promote the fuel quality, particularly octane rating. The process involves adding a step for enriching octane of the fuel coming from the single recycle loop process. Preferably, the enrichment step takes place in an octane enrichment reactor containing two different catalysts, a zeolite-forming/aromatization catalyst followed by a transalkylation catalyst. The final fuel product preferably has an octane of about 92 to about 112.Type: ApplicationFiled: September 17, 2019Publication date: January 9, 2020Inventors: Meifang QIN, Howard L. FANG, Zhong HE, Ricardo ORENCH, Zhiyi WU, Arie TOREN
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Patent number: 10450512Abstract: The present invention provides apparatuses and processes for producing high octane fuel from synthesis gas. The process combines transalkylation and zeolite-forming/aromatization in conjunction with a single recycle loop configuration in order to effectively promote the fuel quality, particularly octane rating. The process involves adding a step for enriching octane of the fuel coming from the single recycle loop process. Preferably, the enrichment step takes place in an octane enrichment reactor containing two different catalysts, a zeolite-forming/aromatization catalyst followed by a transalkylation catalyst. The final fuel product preferably has an octane of about 92 to about 112.Type: GrantFiled: February 9, 2017Date of Patent: October 22, 2019Assignee: Primus Green Energy Inc.Inventors: Meifang Qin, Howard L. Fang, Zhong He, Ricardo Orench, Zhiyi Wu, Arie Toren
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Patent number: 10214694Abstract: This invention relates to a new process to directly produce transportation gasoline from synthesis gas containing principally carbon monoxide, carbon dioxide, and hydrogen. The process entails three sequential catalytic stages with intermediate heat exchange to provide the requisite temperature in each stage, but with no interstage separation. The recycle loop enhances the conversion of the synthesis gas to the desired products and also serves as heat sink for the highly exothermic reactions involved in each stage.Type: GrantFiled: May 23, 2017Date of Patent: February 26, 2019Assignee: Primus Green Energy Inc.Inventors: Howard L. Fang, Meifang Qin, Cunping Huang, Zhong He, Robert M. Koros
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Publication number: 20170260458Abstract: This invention relates to a new process to directly produce transportation gasoline from synthesis gas containing principally carbon monoxide, carbon dioxide, and hydrogen, The process entails three sequential catalytic stages with intermediate heat exchange to provide the requisite temperature in each stage, but with no interstage separation. The recycle loop enhances the conversion of the synthesis gas to the desired products and also serves as heat sink for the highly exothermic reactions involved in each stage.Type: ApplicationFiled: May 23, 2017Publication date: September 14, 2017Inventors: Howard L. FANG, Meifang QIN, Cunping HUANG, Zhong HE, Robert M. KOROS
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Publication number: 20170226427Abstract: The present invention provides apparatuses and processes for producing high octane fuel from synthesis gas. The process combines transalkylation and zeolite-forming/aromatization in conjunction with a single recycle loop configuration in order to effectively promote the fuel quality, particularly octane rating. The process involves adding a step for enriching octane of the fuel coming from the single recycle loop process. Preferably, the enrichment step takes place in an octane enrichment reactor containing two different catalysts, a zeolite-forming/aromatization catalyst followed by a transalkylation catalyst. The final fuel product preferably has an octane of about 92 to about 112.Type: ApplicationFiled: February 9, 2017Publication date: August 10, 2017Inventors: Meifang QIN, Howard L. FANG, Zhong HE, Ricardo ORENCH, Zhiyi WU, Arie TOREN
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Patent number: 9670416Abstract: This invention relates to a new process to directly produce transportation gasoline from synthesis gas containing principally carbon monoxide, carbon dioxide, and hydrogen. The process entails three sequential catalytic stages with intermediate heat exchange to provide the requisite temperature in each stage, but with no interstage separation. The recycle loop enhances the conversion of the synthesis gas to the desired products and also serves as heat sink for the highly exothermic reactions involved in each stage.Type: GrantFiled: December 10, 2014Date of Patent: June 6, 2017Assignee: Primus Green Energy Inc.Inventors: Howard L. Fang, Meifang Qin, Cunping Huang, Zhong He, Robert M. Koros
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Publication number: 20160168476Abstract: This invention relates to a new process to directly produce transportation gasoline from synthesis gas containing principally carbon monoxide, carbon dioxide, and hydrogen. The process entails three sequential catalytic stages with intermediate heat exchange to provide the requisite temperature in each stage, but with no interstage separation. The recycle loop enhances the conversion of the synthesis gas to the desired products and also serves as heat sink for the highly exothermic reactions involved in each stage.Type: ApplicationFiled: December 10, 2014Publication date: June 16, 2016Inventors: Howard L. Fang, Meifang Qin, Cunping Huang, Zhong He, Robert M. Koros
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Patent number: 9169166Abstract: Synthetic fuels are produced from synthesis gas in a four-stage reactor system with a single recycle loop providing the requisite thermal capacity to moderate the high heat release of the reactions and to provide the reactants and reaction environments for the efficient operation of the process. The first reactor converts a portion of the synthesis gas to methanol; the second reactor converts the methanol to dimethylether; the third reactor converts the methanol and dimethylether to fuel; and the fourth reactor converts the high melting point component, durene, and other low volatility aromatic components such as tri- and tetra-methylbenzenes to high octane branched paraffins. A large part of the gas stream of the fourth reactor is recycled to the inlet of the first stage and mixed with the fresh synthesis gas stream. Alternatively, the fresh synthetic gas stream is mixed with the product of the second stage.Type: GrantFiled: January 15, 2014Date of Patent: October 27, 2015Assignee: Primus Green Energy Inc.Inventors: Howard L. Fang, Moshe Ben-Reuven, Richard E. Boyle, Robert M. Koros
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Publication number: 20140199213Abstract: Synthetic fuels are produced from synthesis gas in a four-stage reactor system with a single recycle loop providing the requisite thermal capacity to moderate the high heat release of the reactions and to provide the reactants and reaction environments for the efficient operation of the process. The first stage converts a portion of the synthesis gas to methanol, the second stage converts the methanol to dimethylether, the third stage converts the methanol and dimethylether to fuel and the fourth stage converts the high melting point component, durene, and other low volatility aromatic components such as tri- and tetra-methylbenzenes to high octane branched paraffins. The four-stage catalyst used for hydrotreating is resistant to CO poisoning. The reactions i produce water as a side product that is carried through to a high pressure separator after the fourth stage.Type: ApplicationFiled: January 15, 2014Publication date: July 17, 2014Applicant: PRIMUS GREEN ENERGYInventors: Howard L. FANG, Moshe BEN-REUVEN, Richard E. BOYLE, Robert M. KOROS
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Patent number: 8722951Abstract: This invention relates to fuel compositions for use in combustion engines, such as for motor vehicle and aircraft usage. The fuel composition contains at least 99.5% of aromatic hydrocarbons and paraffinic hydrocarbons. The composition also preferably contains no lead, no multi-ring compound (only single ring compounds are present), less than about 15 ppm sulfur, and/or less than about 5 ppm nitrogen species. The resulting fuel is a drop-in fuel that provides clean burning with little to no engine deposit, high lubricity, high stability, and low corrosion.Type: GrantFiled: July 12, 2013Date of Patent: May 13, 2014Assignee: Primus Green Energy Inc.Inventors: Howard L. Fang, Meifang Qin, Moshe Ben-Reuven
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Patent number: 8686206Abstract: Synthetic fuels are produced from synthesis gas in a four-stage reactor system with a single recycle loop providing the requisite thermal capacity to moderate the high heat release of the reactions and to provide the reactants and reaction environments for the efficient operation of the process. The first stage converts a portion of the synthesis gas to methanol, the second stage converts the methanol to dimethylether, the third stage converts the methanol and dimethylether to fuel and the fourth stage converts the high melting point component, durene, and other low volatility aromatic components such as tri- and tetra-methylbenzenes to high octane branched paraffins.Type: GrantFiled: November 9, 2010Date of Patent: April 1, 2014Assignee: Primus Green Energy Inc.Inventors: Howard L. Fang, Moshe Ben-Reuven, Richard E. Boyle, Robert M. Koros
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Publication number: 20140018587Abstract: This invention relates to fuel compositions for use in combustion engines, such as for motor vehicle and aircraft usage. The fuel composition contains at least 99.5% of aromatic hydrocarbons and paraffinic hydrocarbons. The composition also preferably contains no lead, no multi-ring compound (only single ring compounds are present), less than about 15 ppm sulfur, and/or less than about 5 ppm nitrogen species. The resulting fuel is a drop-in fuel that provides clean burning with little to no engine deposit, high lubricity, high stability, and low corrosion.Type: ApplicationFiled: July 12, 2013Publication date: January 16, 2014Applicant: Primus Green Energy Inc.Inventors: Howard L. FANG, Meifang QIN, Moshe BEN-REUVEN
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Patent number: 8569554Abstract: This invention relates to fuel compositions for use in combustion engines, such as for motor vehicle and aircraft usage. The fuel composition contains at least 99.5% of aromatic hydrocarbons and paraffinic hydrocarbons. The composition also preferably contains no lead, no multi-ring compound (only single ring compounds are present), less than about 15 ppm sulfur, and/or less than about 5 ppm nitrogen species. The resulting fuel is a drop-in fuel that provides clean burning with little to no engine deposit, high lubricity, high stability, and low corrosion.Type: GrantFiled: July 12, 2012Date of Patent: October 29, 2013Assignee: Primus Green Energy IncInventors: Howard L. Fang, Meifang Qin, Moshe Ben-Reuven
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Publication number: 20130270483Abstract: The invention relates to systems and methods for producing synthesis gas. In particular, the systems of the present invention include two catalytic reactors in series, a wet reformer/gasifier followed by a dry reformer. The systems produce synthesis gas with very little to no methane.Type: ApplicationFiled: July 17, 2012Publication date: October 17, 2013Applicant: Primus Green Energy Inc.Inventors: Moshe BEN-REUVEN, Howard L. Fang, Meifang Qin, Robert M. Koros, Arie Toren
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Publication number: 20120116137Abstract: Synthetic fuels are produced from synthesis gas in a four-stage reactor system with a single recycle loop providing the requisite thermal capacity to moderate the high heat release of the reactions and to provide the reactants and reaction environments for the efficient operation of the process. The first stage converts a portion of the synthesis gas to methanol, the second stage converts the methanol to dimethylether, the third stage converts the methanol and dimethylether to fuel and the fourth stage converts the high melting point component, durene, and other low volatility aromatic components such as tri- andtetra-methylbenzenes to high octane branched paraffins. The four-stage catalyst used for hydrotreating is resistant to CO poisoning. The reactions i produce water as a side product that is carried through to a high pressure separator after the fourth stage.Type: ApplicationFiled: November 9, 2010Publication date: May 10, 2012Applicant: PRIMUS GREEN ENERGY INC.Inventors: Howard L. Fang, Moshe BEN-REUVEN, Richard E. BOYLE, Robert M. KOROS
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Publication number: 20040116276Abstract: An exhaust emission control regeneration system regenerates a particulate filter by combusting trapped particulate and producing a combustion product from such combustion, and uses the combustion product to assist regeneration of a downstream catalyst, such as CO assisting regeneration of a downstream NOX adsorber, located in sufficiently close proximity to a diesel particulate filter.Type: ApplicationFiled: February 12, 2002Publication date: June 17, 2004Inventors: Aleksey Yezerets, Neal W. Currier, Matthew J. DeWitt, Sriram S. Popuri, George G. Muntean, Michael J. Cunningham, Z. Gerald Liu, Barry M. Verdegan, Robert K. Miller, Jer-Sheng Jason Chen, Howard L. Fang, Herbert Dacosta, Cary D. Bremigan, William C. Haberkamp
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Patent number: 5837657Abstract: The present invention is directed to a method for improving the performance of a sooted diesel oil and controlling soot induced viscosity increase by adding to a major amount of a diesel oil a minor amount of a composition comprising at least one compound having the formula Mo.sub.3 S.sub.k L.sub.n Q.sub.z and mixtures thereof wherein the L are independently selected ligands having organo groups with a sufficient number of carbon atoms to render the compound soluble or dispersible in the oil, n is from 1 to 4, k varies from 4 through 10, Q is selected from the group of neutral electron donating compounds such as water, amines, alcohols, phosphines, and ethers, and z ranges from 0 to 5 and includes nonstoichiometric values.Type: GrantFiled: December 2, 1997Date of Patent: November 17, 1998Inventors: Howard L. Fang, Jonathan M. McConnachie, Edward Ira Stiefel