Patents by Inventor Albert C. Tsang
Albert C. Tsang 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: 11639477Abstract: A gasification process may include (a) introducing a liquid hydrocarbon feedstock and at least one of a dry feedstock or a first slurried feedstock into a reactor lower section, wherein the at least one dry feedstock or first slurried feedstock is introduced through two primary feed nozzles while the liquid hydrocarbon feedstock is introduced through at least two secondary feed nozzles; (b) partially combusting the feedstocks in the reactor lower section with a gas stream comprising an oxygen-containing gas or steam to evolve heat and form products comprising hot synthesis gas; (c) passing said hot synthesis gas from step (b) upward into a reactor upper section; (d) and introducing a second slurried feedstock into said reactor upper section, whereby heat from said hot synthesis gas supports reaction of the second slurried feedstock by pyrolysis and gasification reactions.Type: GrantFiled: August 9, 2021Date of Patent: May 2, 2023Assignee: LUMMUS TECHNOLOGY, LLCInventors: Chancelor L. Williams, Albert C. Tsang, Philip Rodney Amick, Jayesh Shah, Paul Edgar Michaud, Shrinivas Lokare
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Publication number: 20210363442Abstract: A gasification process may include (a) introducing a liquid hydrocarbon feedstock and at least one of a dry feedstock or a first slurried feedstock into a reactor lower section, wherein the at least one dry feedstock or first slurried feedstock is introduced through two primary feed nozzles while the liquid hydrocarbon feedstock is introduced through at least two secondary feed nozzles; (b) partially combusting the feedstocks in the reactor lower section with a gas stream comprising an oxygen-containing gas or steam to evolve heat and form products comprising hot synthesis gas; (c) passing said hot synthesis gas from step (b) upward into a reactor upper section; (d) and introducing a second slurried feedstock into said reactor upper section, whereby heat from said hot synthesis gas supports reaction of the second slurried feedstock by pyrolysis and gasification reactions.Type: ApplicationFiled: August 9, 2021Publication date: November 25, 2021Applicant: LUMMUS TECHNOLOGY LLCInventors: Chancelor L. Williams, Albert C. Tsang, Philip Rodney Amick, Jayesh Shah, Paul Edgar Michaud, Shrinivas Lokare
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Patent number: 11084996Abstract: A two-stage gasification reactor may include a reactor lower section and a reactor upper section. The reactor lower section may include (a) a lower reactor body, (b) two primary feed nozzles, configured to introduce at least one of a dry feedstock or a first slurried feedstock and located on opposing terminal ends of the lower reactor body, and (c) at least two secondary feed nozzles, configured to introduce a liquid hydrocarbon feedstock, located on the lower reactor body. The reactor upper section may include (a) an upper reactor body, (b) at least one upper feed nozzle, configured to introduce at least one of a dry feedstock or a first slurried feedstock, located on the upper reactor body, and (c) an outlet.Type: GrantFiled: October 8, 2018Date of Patent: August 10, 2021Assignee: LUMMUS TECHNOLOGY LLCInventors: Chancelor L. Williams, Albert C. Tsang, Philip Rodney Amick, Jayesh Shah, Paul Edgar Michaud, Shrinivas Lokare
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Patent number: 10392572Abstract: A system for gasification of a carbonaceous material and recycling char or solids from a gasifier is disclosed. The recycling system may include a standpipe that receives a solids stream from a separator, the standpipe generating a pressure differential across a bed of accumulated char, thereby producing a bottoms stream having a greater pressure than the inlet solids stream. The recycling system may also include a holding vessel that receives the bottoms stream and a fluidized-bed distribution vessel that receives char from the holding vessel and is configured to provide a continuous and precise flow of recycled char to the gasification reactor.Type: GrantFiled: January 27, 2016Date of Patent: August 27, 2019Assignee: Lummus Technology Inc.Inventor: Albert C. Tsang
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Publication number: 20190100707Abstract: A two-stage gasification reactor may include a reactor lower section and a reactor upper section. The reactor lower section may include (a) a lower reactor body, (b) two primary feed nozzles, configured to introduce at least one of a dry feedstock or a first slurried feedstock and located on opposing terminal ends of the lower reactor body, and (c) at least two secondary feed nozzles, configured to introduce a liquid hydrocarbon feedstock, located on the lower reactor body. The reactor upper section may include (a) an upper reactor body, (b) at least one upper feed nozzle, configured to introduce at least one of a dry feedstock or a first slurried feedstock, located on the upper reactor body, and (c) an outlet.Type: ApplicationFiled: October 8, 2018Publication date: April 4, 2019Applicant: LUMMUS TECHNOLOGY LLCInventors: Chancelor L. Williams, Albert C. Tsang, Philip Rodney Amick, Jayesh Shah, Paul Edgar Michaud, Shrinivas Lokare
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Patent number: 10232356Abstract: A catalyst comprising NiO, a metal mixture comprising at least one of MoO3 or WO3, a mixture comprising at least one of SiO2 and Al2O3, and P2O5. In this embodiment the metal sites on the catalyst are sulfided and the catalyst is capable of removing tar from a synthesis gas while performing methanation and water gas shift reactions at a temperature range from 300° C. to 600° C.Type: GrantFiled: July 21, 2014Date of Patent: March 19, 2019Assignee: Lummus Technology Inc.Inventors: Sourabh S. Pansare, Joe D. Allison, Steven E. Lusk, Albert C. Tsang
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Patent number: 10093876Abstract: A gasification process may include (a) introducing a liquid hydrocarbon feedstock and at least one of a dry feedstock or a first slurried feedstock into a reactor lower section, wherein the at least one dry feedstock or first slurried feedstock is introduced through two primary feed nozzles while the liquid hydrocarbon feedstock is introduced through at least two secondary feed nozzles; (b) partially combusting the feedstocks in the reactor lower section with a gas stream comprising an oxygen-containing gas or steam to evolve heat and form products comprising hot synthesis gas; (c) passing said hot synthesis gas from step (b) upward into a reactor upper section; (d) and introducing a second slurried feedstock into said reactor upper section, whereby heat from said hot synthesis gas supports reaction of the second slurried feedstock by pyrolysis and gasification reactions.Type: GrantFiled: March 3, 2017Date of Patent: October 9, 2018Assignee: Lummus Technology LLCInventors: Chancelor L. Williams, Albert C. Tsang, Philip Rodney Amick, Jayesh Shah, Paul Edgar Michaud, Shrinivas Lokare
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Publication number: 20170253818Abstract: A gasification process may include (a) introducing a liquid hydrocarbon feedstock and at least one of a dry feedstock or a first slurried feedstock into a reactor lower section, wherein the at least one dry feedstock or first slurried feedstock is introduced through two primary feed nozzles while the liquid hydrocarbon feedstock is introduced through at least two secondary feed nozzles; (b) partially combusting the feedstocks in the reactor lower section with a gas stream comprising an oxygen-containing gas or steam to evolve heat and form products comprising hot synthesis gas; (c) passing said hot synthesis gas from step (b) upward into a reactor upper section; (d) and introducing a second slurried feedstock into said reactor upper section, whereby heat from said hot synthesis gas supports reaction of the second slurried feedstock by pyrolysis and gasification reactions.Type: ApplicationFiled: March 3, 2017Publication date: September 7, 2017Applicant: Lummus Technology Inc.Inventors: Chancelor L. Williams, Albert C. Tsang, Philip Rodney Amick, Jayesh Shah, Paul Edgar Michaud, Shrinivas Lokare
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Patent number: 9486782Abstract: A catalyst comprising of NiO; Al2O3; and ZnO. The catalyst is capable of greater than 5% sulfur removal from a synthesis gas at a temperature range from 300° C. to 600° C.Type: GrantFiled: December 22, 2014Date of Patent: November 8, 2016Assignee: Lummus Technology Inc.Inventors: Sourabh S. Pansare, Joe D. Allison, Steven E. Lusk, Albert C. Tsang
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Publication number: 20160222306Abstract: A system for gasification of a carbonaceous material and recycling char or solids from a gasifier is disclosed. The recycling system may include a standpipe that receives a solids stream from a separator, the standpipe generating a pressure differential across a bed of accumulated char, thereby producing a bottoms stream having a greater pressure than the inlet solids stream. The recycling system may also include a holding vessel that receives the bottoms stream and a fluidized-bed distribution vessel that receives char from the holding vessel and is configured to provide a continuous and precise flow of recycled char to the gasification reactor.Type: ApplicationFiled: January 27, 2016Publication date: August 4, 2016Applicant: Lummus Technology Inc.Inventor: Albert C. Tsang
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Patent number: 9074149Abstract: The current invention discloses a novel process and system to improve the quality of the slag product from a gasification process, thereby producing low-carbon marketable aggregate product. The inventive processes and systems employ a hindered-bed settler in conjunction with optional disengager and de-watering devices. A slag slurry stream from a gasification process is de-watered and the solids content is increased from less than 5% to greater than 30% via the de-waterer before being conveyed to a hindered-bed settler, wherein the carbon content is reduced from as much as 70% to less than 5%. Particles with a high carbon content are conveyed to a gravity settler, whereby they are concentrated and then recycled to the gasification reactor.Type: GrantFiled: January 5, 2010Date of Patent: July 7, 2015Assignee: Lummus Technology Inc.Inventors: Albert C. Tsang, Max W. Thompson, Rick Q. Honaker
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Publication number: 20150105248Abstract: A catalyst comprising of NiO; Al2O3; and ZnO. The catalyst is capable of greater than 5% sulfur removal from a synthesis gas at a temperature range from 300° C. to 600° C.Type: ApplicationFiled: December 22, 2014Publication date: April 16, 2015Inventors: Sourabh S. Pansare, Joe D. Allison, Steven E. Lusk, Albert C. Tsang
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Patent number: 8945424Abstract: A catalyst comprising of NiO; Al2O3; and ZnO. The catalyst is capable of greater than 5% sulfur removal from a synthesis gas at a temperature range from 300° C. to 600° C.Type: GrantFiled: September 13, 2011Date of Patent: February 3, 2015Assignee: Lummus Technology Inc.Inventors: Sourabh S. Pansare, Joe D. Allison, Steven E. Lusk, Albert C. Tsang
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Patent number: 8888876Abstract: The present invention relates to a system and process for gasifying feedstock such as carbonaceous materials. The invention includes partial combustion of dry solids and pyrolysis of carbonaceous material slurry in two separate reactor sections and produce mixture products comprising synthesis gas. The invention employs one or more catalytic or sorbent bed for removing tar from the synthesis gas. The inventive system and process allow a gasification to be carried out under higher slurry feeding rate and lower temperature with the provision to manage the tar being produced, therefore to increase the conversion efficiency of the overall gasification.Type: GrantFiled: May 8, 2013Date of Patent: November 18, 2014Assignee: Lummus Technology Inc.Inventors: Albert C. Tsang, Chancelor L. Williams, Max W. Thompson, David L. Breton
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Publication number: 20140329666Abstract: A catalyst comprising NiO, a metal mixture comprising at least one of MoO3 or WO3, a mixture comprising at least one of SiO2 and Al2O3, and P2O5. In this embodiment the metal sites on the catalyst are sulfided and the catalyst is capable of removing tar from a synthesis gas while performing methanation and water gas shift reactions at a temperature range from 300° C. to 600° C.Type: ApplicationFiled: July 21, 2014Publication date: November 6, 2014Inventors: Sourabh S. Pansare, Joe D. Allison, Steven E. Lusk, Albert C. Tsang
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Patent number: 8815962Abstract: A catalyst comprising NiO, a metal mixture comprising at least one of MoO3 or WO3, a mixture comprising at least one of SiO2 and Al2O3, and P2O5. In this embodiment the metal sites on the catalyst are sulfided and the catalyst is capable of removing tar from a synthesis gas while performing methanation and water gas shift reactions at a temperature range from 300° C. to 600° C.Type: GrantFiled: September 13, 2011Date of Patent: August 26, 2014Assignee: Lummus Technology Inc.Inventors: Sourabh S. Pansare, Joe D. Allison, Steven E. Lusk, Albert C. Tsang
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Publication number: 20130240790Abstract: The present invention relates to a system and process for gasifying feedstock such as carbonaceous materials. The invention includes partial combustion of dry solids and pyrolysis of carbonaceous material slurry in two separate reactor sections and produce mixture products comprising synthesis gas. The invention employs one or more catalytic or sorbent bed for removing tar from the synthesis gas. The inventive system and process allow a gasification to be carried out under higher slurry feeding rate and lower temperature with the provision to manage the tar being produced, therefore to increase the conversion efficiency of the overall gasification.Type: ApplicationFiled: May 8, 2013Publication date: September 19, 2013Applicant: PHILLIPS 66 COMPANYInventors: Albert C. TSANG, Chancelor L. WILLIAMS, Max W. THOMPSON, David L. BRETON
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Patent number: 8460410Abstract: The present invention relates to a system and process for gasifying feedstock such as carbonaceous materials. The invention includes partial combustion of dry solids and pyrolysis of carbonaceous material slurry in two separate reactor sections and produce mixture products comprising synthesis gas. The invention employs one or more catalytic or sorbent bed for removing tar from the synthesis gas. The inventive system and process allow a gasification to be carried out under higher slurry feeding rate and lower temperature with the provision to manage the tar being produced, therefore to increase the conversion efficiency of the overall gasification.Type: GrantFiled: August 15, 2008Date of Patent: June 11, 2013Assignee: Phillips 66 CompanyInventors: Albert C. Tsang, Chancelor L. Williams, Max W. Thompson, David L. Breton
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Publication number: 20130116345Abstract: A catalyst comprising NiO, a metal mixture comprising at least one of MoO3 or WO3, a mixture comprising at least one of SiO2 and Al2O3, and P2O5. In this embodiment the metal sites on the catalyst are sulfided and the catalyst is capable of removing tar from a synthesis gas while performing methanation and water gas shift reactions at a temperature range from 300° C. to 600° C.Type: ApplicationFiled: September 13, 2011Publication date: May 9, 2013Applicant: PHILLIPS 66 COMPANYInventors: Sourabh S. Pansare, Joe D. Allison, Steven E. Lusk, Albert C. Tsang
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Publication number: 20120294775Abstract: A novel tar-free gasification process and system is disclosed that involves the partial combustion of recycled dry solids and the drying of a slurry feedstock comprising carbonaceous material in two separate reactor zones in a two stage gasifier, thereby producing mixture products comprising synthesis gas. The synthesis gas produced from the high temperature first stage reaction zone is then quenched in the second stage reaction zone of the gasifier prior to introduction of a slurry feedstock. The temperature of the final syngas exiting the second stage reaction zone of the gasifier is thereby moderated to be in the range of about 350-900° F., which is below the temperature range at which tar is readily formed, depending upon the type of carbonaceous feedstock utilized.Type: ApplicationFiled: August 1, 2012Publication date: November 22, 2012Applicant: PHILLIPS 66 COMPANYInventors: Albert C. Tsang, David L. Breton