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公开(公告)号：US20210371800A1
公开(公告)日：2021-12-02
申请号：US17190515
申请日：2021-03-03
Applicant: ExxonMobil Research and Engineering Company
Inventor： Gregory R. Johnson , Everett J. O'Neal , Sarah E. Feicht
Abstract: Systems and methods for algae cultivation and, more particularly, systems and methods for controlling algae cultivation water slurry temperature to optimize algae facility production and facilitation of algae facility commercial deployment in a wide spectrum of environmental locations. Thermal reservoirs comprising temperature-based, phase-transitioning material(s) are integrated with algae cultivation vessels to provide temperature control of cultivating algae slurries.
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公开(公告)号：US20210371787A1
公开(公告)日：2021-12-02
申请号：US17198482
申请日：2021-03-11
Applicant: ExxonMobil Research and Engineering Company
Inventor： Patrick L. Hanks , Louis R. Brown , Everett J. O'Neal
IPC: C12M1/00
Abstract: The present disclosure relates to algae cultivation including the integration of liners for large-scale open algal biomass to facilitate algae facility commercial scale-up operations. Liners include those having a first portion having a first thickness and a second portion comprising a second thickness, wherein the first thickness and the second thickness are different. Liners also include those having a first portion having a first thickness, a second portion comprising a second thickness, and a third portion comprising a third thickness, wherein the first thickness, the second thickness, and the third thickness are different.
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公开(公告)号：US20210222111A1
公开(公告)日：2021-07-22
申请号：US17082244
申请日：2020-10-28
Applicant: ExxonMobil Research and Engineering Company
Inventor： Everett J. O'Neal , Kevin B. Daly
Abstract: A method of operating a bioreactor includes containing an algae slurry within the bioreactor for cultivation, discharging a portion of the algae slurry to a heat pump that circulates a refrigerant, and receiving the portion of the algae slurry at a first heat exchanger and transferring heat from the algae slurry to the refrigerant. The method further includes discharging a cooled algae slurry and a heated refrigerant from the first heat exchanger, receiving and compressing the heated refrigerant at a compressor and thereby discharging a compressed refrigerant, and receiving the compressed refrigerant at a second heat exchanger and transferring heat from the compressed refrigerant to a fluid. The method further includes discharging a cooled refrigerant and steam from the second heat exchanger, receiving and expanding the cooled refrigerant at an expansion valve, and receiving and utilizing the steam at a downstream application in fluid communication with the second heat exchanger.
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Patent Agency Ranking
公开(公告)号：US20210047608A1
公开(公告)日：2021-02-18
申请号：US16891114
申请日：2020-06-03
Applicant: ExxonMobil Research and Engineering Company
Inventor： Everett J. O'Neal , Louis R. Brown , Patrick L. Hanks , Mark A. Deimund
Abstract: A system for growing algae includes a pivot arm pivotally coupled to a pivot connection positioned in a pond containing water and algae, and a mixing device coupled to the pivot arm and extending into the pond to mix the water and the algae as the pivot arm rotates.
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公开(公告)号：US20210047181A1
公开(公告)日：2021-02-18
申请号：US16838793
申请日：2020-04-02
Applicant: ExxonMobil Research and Engineering Company
Inventor： Everett J. O'Neal , Brian M. Weiss , Anastasios I. Skoulidas
Abstract: Systems and methods are provided for using oxycombustion to provide heat within a reverse flow reactor environment. The oxygen for the oxycombustion can be provided by oxygen stored in an oxygen storage component in the reactor. By using an oxygen storage component to provide the oxygen for combustion during the regeneration step, heat can be added to a reverse flow reactor while reducing or minimizing addition of diluents and while avoiding the need for an air separation unit. As a result, a regeneration flue gas can be formed that is substantially composed of CO2 and/or H2O without requiring the additional cost of creating a substantially pure oxygen-containing gas flow.
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公开(公告)号：US20210045305A1
公开(公告)日：2021-02-18
申请号：US16891136
申请日：2020-06-03
Applicant: ExxonMobil Research and Engineering Company
Inventor： Everett J. O'Neal , Mark A. Deimund
Abstract: Methods for autoflocculation of algae cells in an algae water slurry to facilitate harvesting. Algae cells are cultivated in the algae water slurry to produce an algal biomass and thereafter autoflocculated to allow for an enhanced dewatering harvesting process. Autoflocculation provides a cost-effective and efficient harvesting method compared to traditional dewatering processes.
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公开(公告)号：US20200339417A1
公开(公告)日：2020-10-29
申请号：US16838477
申请日：2020-04-02
Applicant: ExxonMobil Research and Engineering Company
Inventor： Everett J. O'Neal , Anastasios I. Skoulidas
Abstract: Systems and methods are provided for improving the operation of groups of reverse flow reactors by operating reactors in a regeneration portion of the reaction cycle to have improved flue gas management. The flue gas from reactor(s) at a later portion of the regeneration step can be selectively used for recycle back to the reactors as a diluent/heat transport fluid. The flue gas from a reactor earlier in a regeneration step can be preferentially used as the gas vented from the system to maintain the desired volume of gas within the system. This results in preferential use of higher temperature flue gas for recycle and lower temperature flue gas for venting from the system. This improved use of flue gas within a reaction system including reverse flow reactors can allow for improved reaction performance while reducing or minimizing heat losses during the regeneration portion of the reaction cycle.
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公开(公告)号：US20200317515A1
公开(公告)日：2020-10-08
申请号：US16838399
申请日：2020-04-02
Applicant: ExxonMobil Research and Engineering Company
Inventor： Everett J. O'Neal , Anastasios I. Skoulidas , Zhiyan Wang
Abstract: Systems and methods are provided for using a high heat capacity gas as at least a portion of the diluent during the regeneration step of a reverse flow reactor process. Instead of using nitrogen or air as the primary diluent gas, CO2 and/or H2O can be added as diluent gas for the regeneration step in the reaction cycle. Increasing the heat capacity of the diluent gas provides a reduction in the peak temperature within the reactor relative to the amount of fuel combusted during regeneration. This can allow for a reduction in the volume of diluent used during regeneration and/or an increase in the amount of fuel used. Reducing the volume of diluent can reduce the pressure drop during regeneration, which can provide a corresponding reduction in the amount of compression required for recycle of the diluent. Increasing the amount of fuel can allow for a corresponding increase in the amount of endothermic reaction performed during the reaction step.
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