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公开(公告)号：US20230012835A1
公开(公告)日：2023-01-19
申请号：US17378891
申请日：2021-07-19
IPC分类号： G05B19/418
摘要： A method of controlling an industrial gas production facility comprising: receiving time-dependent power data receiving time-dependent operational characteristic data; defining one or more power constraints for the operational parameters of the power network; defining one or more process constraints for the operational parameters of each industrial gas plant; generating, based on the power data, the operational characteristic data, the one or more power constraints and the one or more process constraints, control set point values for the one or more industrial gas plants to achieve a pre-determined production parameter for the industrial gas production facility; and sending the control set point values to a control system to control the one or more industrial gas plants by adjusting one or more control set points of the industrial gas plants to achieve the pre-determined production parameter for the industrial gas production facility.
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公开(公告)号：US11549874B2
公开(公告)日：2023-01-10
申请号：US17151928
申请日：2021-01-19
摘要： An apparatus for controlling blending of a gas mixture containing known components, including first, second, and third control valves for controlling the flow of first, second, and third components, respectively, a first gas density sensor to measure the density of a first mixture of the first and second components, a second gas density sensor to measure the density of a second mixture of the first mixture and the third component, and a controller to determine based on data from the first and second gas density sensors the relative compositions of the first, second, and third components in the second mixture, and to control the first, second, and third control valves to obtain a desired relative composition of the first, second, and third components in the second mixture.
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公开(公告)号：US20220397117A1
公开(公告)日：2022-12-15
申请号：US17346789
申请日：2021-06-14
摘要： Operation of a multistage compression system comprising at least one centrifugal compressor having a dry gas seal with opposed seal faces, for compressing a gas feed having a variable flow rate is improved by operating the or at least one centrifugal compressor in a low power mode where the opposed faces of the dry gas seal are not in contact during periods when gas flow through the centrifugal compressor(s) is not sufficient for normal operation. Such operation not only reduces damage to the dry gas seals and hence improves reliability, but also reduces the overall power requirement of the overall compression system.
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公开(公告)号：US11480389B2
公开(公告)日：2022-10-25
申请号：US16805909
申请日：2020-03-02
发明人： Laurent Marc Brussol , David Joseph Holzer , Sylvain Vovard , Russell Shnitser , Adam Adrian Brostow , Mark Julian Roberts
摘要： A liquefaction system is capable of sequentially or simultaneously liquefying multiple feed streams of hydrocarbons having different normal bubble points with minimal flash. The liquefying heat exchanger has separate circuits for handling multiple feed streams. The feed stream with the lowest normal boiling point is sub-cooled sufficiently to suppress most of the flash. Feed streams with relatively high normal boiling points are cooled to substantially the same temperature, then blended with bypass streams to maintain each product near its normal bubble point. The system can also liquefy one stream at a time by using a dedicated circuit or by allocating the same feed to multiple circuits.
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公开(公告)号：US11453950B1
公开(公告)日：2022-09-27
申请号：US17201337
申请日：2021-03-15
摘要： A method for supplying hydrogen gas for consumption in at least one downstream process, the method comprising: electrolysing water to provide hydrogen gas; compressing the hydrogen gas in a multistage compression system to provide compressed hydrogen gas; and feeding at least a portion of the compressed hydrogen gas to the downstream process(es); wherein the multistage compression system comprises at least one centrifugal compression stage; wherein the hydrogen gas is dosed with nitrogen gas upstream of the centrifugal compression stage(s); and wherein the nitrogen gas is present in the compressed hydrogen gas when fed to the downstream process(es).
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公开(公告)号：US20220299263A1
公开(公告)日：2022-09-22
申请号：US17836063
申请日：2022-06-09
发明人： Joseph E. Voda , Adam R. Garcia , Kevin E. Tiemann , Christopher J. Ranella , Paul I. Debrah , John A. Dally
IPC分类号： F25J1/00 , F28D1/047 , F28D7/02 , F28F9/007 , B21D53/02 , B21D53/04 , B21D53/06 , B23P15/26 , F28D7/00
摘要： A method of constructing a coil wound heat exchange module and transporting and installing the coil wound heat exchange module at a plant site, such as an natural gas liquefaction plant. A module frame is constructed and attached to a heat exchanger shell prior to telescoping of a coil wound mandrel into the shell. The module frame includes a lug and two saddles that remain attached to the shell throughout the process and when the heat exchanger is operated. The lug and saddles are constructed and located to stabilize the shell during construction, telescoping and transport (when in a horizontal orientation), and when the shell is installed at the plant site (in a vertical orientation). The lugs and saddles are adapted to allow for thermal expansion and contraction of the shell when it is transitioned from ambient to operating temperature and vice versa.
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公开(公告)号：US20220283567A1
公开(公告)日：2022-09-08
申请号：US17193052
申请日：2021-03-05
发明人： Sanjay Mehta , Pratik Misra
IPC分类号： G05B19/4155
摘要： There is provided a method of controlling an industrial gas plant complex comprising a plurality of industrial gas plants powered by one or more renewable power sources, the method being executed by at least one hardware processor, the method comprising receiving time-dependent predicted power data for a pre-determined future time period from the one or more renewable power sources; receiving time-dependent predicted operational characteristic data for each industrial gas plant; utilizing the predicted power data and predicted characteristic data in an optimization model to generate a set of state variables for the plurality of industrial gas plants; utilizing the generated state variables to generate a set of control set points for the plurality of industrial gas plants; and sending the control set points to a control system to control the industrial gas plant complex by adjusting one or more control set points of the industrial gas plants.
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公开(公告)号：US20220221221A1
公开(公告)日：2022-07-14
申请号：US17148758
申请日：2021-01-14
发明人： D. MICHAEL HERRON , ALAN D. BERGER
IPC分类号： F25J3/04
摘要： A process for recovering at least one fluid (e.g. argon gas and/or nitrogen gas, etc.) from a feed gas (e.g. air) can include utilization of a compression system, primary heat exchanger unit, plant processing units to separate and recover at least one desired fluid (e.g. nitrogen gas, argon gas, etc.). In some embodiments, the process can be configured so that fluid flows output from a low pressure column and/or high pressure column of the plant can provide a condensation duty or refrigeration duty that is utilized to process certain fluid flows for recovery of argon and/or nitrogen gases. Some embodiments can be configured to provide an improved recovery of argon and/or nitrogen as well as an improvement in operational efficiency by reducing an amount of power (e.g. electrical power) needed to recover the nitrogen and/or argon.
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公开(公告)号：US11363909B2
公开(公告)日：2022-06-21
申请号：US16848936
申请日：2020-04-15
发明人： Reed Jacob Hendershot , Avishek Guha , Shawn Haupt , Ankit Naik , Michael Robert Himes , Erdem Arslan
摘要： A processor of a sensor device receives a plurality of images capturing a scene that depicts at least a portion of a conveyer entering a treatment area of a food processing system. The processor processes one or more images, among the plurality of images, to detect one or more characteristics in the scene. Processing the one or more images includes detecting presence or absence of a product on the at least the portion of the conveyor depicted in the scene, and classifying the scene as having one or more characteristics among a predetermined set of characteristics. The sensor device provides characteristics information indicating the one or more characteristics detected in the scene to a controller. The characteristics information is to be used by the controller to control operation of one or both of the conveyor and the treatment area of the food processing system.
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公开(公告)号：US20220096993A1
公开(公告)日：2022-03-31
申请号：US17037906
申请日：2020-09-30
发明人： Nasim Ul Hassan Malik , King Wai Hung , Gowri Krishnamurthy , William T. Kleinberg , Garrett C. Lau , Edward Landis Weist, JR.
IPC分类号： B01D53/04
摘要： An adsorbent vessel for removing contaminants from a feed gas upstream from a cryogenic distillation process using pressure swing adsorption, temperature swing adsorption, or thermal-pressure swing adsorption. The adsorbent vessel having an adsorbent bed comprised of multiple layers of adsorbent material, including two layers of adsorbent material that selective adsorbs carbon dioxide. Each of the two layers is formed from an adsorbent material having a different capacity for adsorbing carbon dioxide.
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