Process intensification for reverse flow reactors

    公开(公告)号:US11220429B2

    公开(公告)日:2022-01-11

    申请号:US16838726

    申请日:2020-04-02

    Abstract: Systems and methods are provided for improving thermal management and/or efficiency of reaction systems including a reverse flow reactor for performance of at least one endothermic reaction and at least one supplemental exothermic reaction. The supplemental exothermic reaction can be performed in the recuperation zone of the reverse flow reactor system. By integrating the supplemental exothermic reaction into the recuperation zone, the heat generated from the supplemental exothermic reaction can be absorbed by heat transfer surfaces in the recuperation zone. The adsorbed heat can then be used to heat at least one of the fuel and the oxidant for the combustion reaction performed during regeneration, thus reducing the amount of combustion that is needed to achieve a desired temperature profile at the end of the regeneration step.

    SYSTEMS AND METHODS COMPRISING OPEN ALGAE CULTIVATION LINERS

    公开(公告)号:US20210371787A1

    公开(公告)日:2021-12-02

    申请号:US17198482

    申请日:2021-03-11

    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.

    BIOREACTOR WASTE HEAT UTILIZATION
    16.
    发明申请

    公开(公告)号:US20210222111A1

    公开(公告)日:2021-07-22

    申请号:US17082244

    申请日:2020-10-28

    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.

    REVERSE FLOW REACTORS WITH SELECTIVE FLUE GAS CASCADE

    公开(公告)号:US20200339417A1

    公开(公告)日:2020-10-29

    申请号:US16838477

    申请日:2020-04-02

    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.

Patent Agency Ranking