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公开(公告)号：US12090532B2
公开(公告)日：2024-09-17
申请号：US16927488
申请日：2020-07-13
申请人： Loci Controls, Inc.
发明人： Peter Quigley , Ian Martin , Jack Rowbottom , Nicole Neff
CPC分类号： B09C1/005 , E21B34/00 , E21B47/06 , E21B49/0875 , G01N33/004 , G01N33/0044 , G01N33/0047 , G01N33/24
摘要： Systems and methods for controlling extraction of landfill gas from a landfill via a gas extraction system are provided herein. According to some aspects of the technology, there is provided site-level control methods for globally controlling one or more wells based on one or more characteristics of aggregate landfill gas collected from a plurality of wells at a gas output. According to some aspects of the technology, there is provided well-level control methods for locally controlling a first well based on or more characteristics of landfill gas collected from the first well. According to further aspects of the technology, there is provided hybrid control methods for making adjustments to a respective well based on both site-level and well-level control methods.
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2.发明授权公开(公告)号：US11977062B2
公开(公告)日：2024-05-07
申请号：US18327580
申请日：2023-06-01
申请人： Loci Controls, Inc.
CPC分类号： G01N33/0006 , B09B1/006 , B09B3/80 , E21B36/00 , E21B36/003 , E21B47/06 , E21B49/08 , G01N1/2294 , G01N33/0036 , G01N33/004 , E21B47/07 , E21B49/0875 , Y02C20/20 , Y02W30/20
摘要： An apparatus for sampling landfill gas from a landfill flowing through a pipe. The apparatus may comprise: an enclosure configured to receive a section of the pipe; a gas sampling port in the section of the pipe; at least one sensor device disposed in a region of the enclosure, the at least one sensor being coupled to the section of the pipe through the gas sampling port; and thermal insulation positioned to retain heat from the section of the pipe in the region of the enclosure. A method of operating a landfill gas recovery system. The method may comprise: flowing gas from a well riser pipe through a sampling subsystem to a collection system; and heating a portion of the sampling subsystem with the gas flowing from the well riser pipe to the collection system.
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公开(公告)号：US20240109111A1
公开(公告)日：2024-04-04
申请号：US18540281
申请日：2023-12-14
申请人： Loci Controls, Inc.
发明人： Peter Quigley , Ian Martin , Jack Rowbottom , Nicole Neff
IPC分类号： B09B1/00
CPC分类号： B09B1/006
摘要： A method for use by a system coupled to at least one sensor and at least one flow control mechanism of a gas extraction system, the system comprising at least one controller and configured for use in connection with a landfill gas extraction process for extraction of landfill gas from a landfill via the gas extraction system, the method comprising: using the at least one controller to perform: obtaining, based on at least one measurement made by the at least one sensor, at least one current value indicative of a selected characteristic of the landfill gas extraction process, determining, at discrete time intervals, whether the at least one current value satisfies at least one compliance criterion for the selected characteristic, and when it is determined that the at least one current value does not satisfy the at least one compliance criterion for the selected characteristic, performing a corrective action.
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公开(公告)号：US20240109110A1
公开(公告)日：2024-04-04
申请号：US18526824
申请日：2023-12-01
申请人： Loci Controls, Inc.
发明人： Peter Quigley , Ian Martin , Joseph G. Michels , Melinda Sims
IPC分类号： B09B1/00
CPC分类号： B09B1/006 , G01N33/0016
摘要： A control system for controlling extraction of landfill gas from a landfill via a gas extraction system comprising well piping, the landfill gas having a first temperature when extracted, the control system comprising: a gas composition chamber coupled to the well piping and comprising at least one sensor configured to measure one or more characteristics of a landfill gas sample in the gas composition chamber; a temperature control mechanism configured to heat the landfill gas sample in the gas composition chamber to a second temperature at least a threshold amount greater than the first temperature; and a controller configured to control the at least one sensor to measure the one or more characteristics of the landfill gas sample in the gas composition chamber when a temperature of the landfill gas sample in the gas composition chamber is at least the threshold amount greater than the first temperature.
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公开(公告)号：US11883864B2
公开(公告)日：2024-01-30
申请号：US17152252
申请日：2021-01-19
申请人： Loci Controls, Inc.
发明人： Peter Quigley , Ian Martin , Jack Rowbottom , Nicole Neff
IPC分类号： B09B1/00
CPC分类号： B09B1/006
摘要： A method for use by a system coupled to at least one sensor and at least one flow control mechanism of a gas extraction system, the system comprising at least one controller and configured for use in connection with a landfill gas extraction process for extraction of landfill gas from a landfill via the gas extraction system, the method comprising: using the at least one controller to perform: obtaining, based on at least one measurement made by the at least one sensor, at least one current value indicative of a selected characteristic of the landfill gas extraction process, determining, at discrete time intervals, whether the at least one current value satisfies at least one compliance criterion for the selected characteristic, and when it is determined that the at least one current value does not satisfy the at least one compliance criterion for the selected characteristic, performing a corrective action.
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公开(公告)号：US11602777B2
公开(公告)日：2023-03-14
申请号：US17369318
申请日：2021-07-07
申请人： Loci Controls, Inc.
摘要： A control system for controlling extraction of landfill gas, comprising: at least one sensor configured to measure one or more characteristics of landfill gas; at least one flow control mechanism disposed in well piping and configured to control flow of the landfill gas through the well piping; and at least one processor configured to: obtain a measured concentration of a first gas in landfill gas; determine whether the measured concentration of the first gas is either less than a first threshold concentration or greater than a second threshold concentration; when it is determined that the measured concentration is less than the first threshold concentration, control the at least one flow control mechanism to reduce flow rate of landfill gas; and when it is determined that the concentration is greater than the second threshold concentration, control the at least one flow control mechanism to increase the flow rate of landfill gas.
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公开(公告)号：US11273473B2
公开(公告)日：2022-03-15
申请号：US16901430
申请日：2020-06-15
申请人： Loci Controls, Inc.
发明人： Peter Quigley , Ian Martin , Nicole Neff , Jack Rowbottom
摘要： A control system for controlling extraction of landfill gas from a landfill via a gas extraction system, the gas extraction system comprising well piping for coupling a plurality of wells to a gas output. The control system comprises a controller configured to: obtain a value indicating measured energy content of landfill gas collected at the gas output from the plurality of wells; determine whether the measured energy content is different from a target energy content; and in response to determining that the measured energy content is different from the target energy content: control a plurality of valves disposed in the well piping to change flow rates of landfill gas being extracted from at least some of the plurality of wells at least in part by changing degrees to which the plurality of valves are open.
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公开(公告)号：US20240066572A1
公开(公告)日：2024-02-29
申请号：US18498770
申请日：2023-10-31
申请人： Loci Controls, Inc.
摘要： A control system for controlling extraction of landfill gas, comprising: at least one sensor configured to measure one or more characteristics of landfill gas; at least one flow control mechanism disposed in well piping and configured to control flow of the landfill gas through the well piping; and at least one processor configured to: obtain a measured concentration of a first gas in landfill gas; determine whether the measured concentration of the first gas is either less than a first threshold concentration or greater than a second threshold concentration; when it is determined that the measured concentration is less than the first threshold concentration, control the at least one flow control mechanism to reduce flow rate of landfill gas; and when it is determined that the concentration is greater than the second threshold concentration, control the at least one flow control mechanism to increase the flow rate of landfill gas.
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公开(公告)号：US11850639B2
公开(公告)日：2023-12-26
申请号：US18327694
申请日：2023-06-01
申请人： Loci Controls, Inc.
摘要： A control system for controlling extraction of landfill gas, comprising: at least one sensor configured to measure one or more characteristics of landfill gas; at least one flow control mechanism disposed in well piping and configured to control flow of the landfill gas through the well piping; and at least one processor configured to: obtain a measured concentration of a first gas in landfill gas; determine whether the measured concentration of the first gas is either less than a first threshold concentration or greater than a second threshold concentration; when it is determined that the measured concentration is less than the first threshold concentration, control the at least one flow control mechanism to reduce flow rate of landfill gas; and when it is determined that the concentration is greater than the second threshold concentration, control the at least one flow control mechanism to increase the flow rate of landfill gas.
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公开(公告)号：US20230302509A1
公开(公告)日：2023-09-28
申请号：US18327694
申请日：2023-06-01
申请人： Loci Controls, Inc.
摘要： A control system for controlling extraction of landfill gas, comprising: at least one sensor configured to measure one or more characteristics of landfill gas; at least one flow control mechanism disposed in well piping and configured to control flow of the landfill gas through the well piping; and at least one processor configured to: obtain a measured concentration of a first gas in landfill gas; determine whether the measured concentration of the first gas is either less than a first threshold concentration or greater than a second threshold concentration; when it is determined that the measured concentration is less than the first threshold concentration, control the at least one flow control mechanism to reduce flow rate of landfill gas; and when it is determined that the concentration is greater than the second threshold concentration, control the at least one flow control mechanism to increase the flow rate of landfill gas.
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