公开(公告)号：US11661572B2

公开(公告)日：2023-05-30

申请号：US16891224

申请日：2020-06-03

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Narasimhan Sundaram

IPC: A01G33/00 ,  C12M1/00 ,  C12N1/12 ,  C12M1/12 ,  C12M1/02 ,  C12R1/89

CPC classification number: C12M21/02 ,  C12M23/06 ,  C12M23/40 ,  C12M27/00 ,  C12N1/12 ,  A01G33/00 ,  C12M31/00 ,  C12R2001/89

Abstract: A system for growing algae includes a photobioreactor comprising a tubular structure having inner and outer surfaces, an annular space defined between the inner and outer surfaces, an inlet to allow an algae slurry to enter the annular space, and a mechanism configured to produce radially-directed contractions and expansions in the tubular structure. At least one of the inner and outer surfaces is transparent to at least some wavelengths of light useful for growing algae within the algae slurry.

公开(公告)号：US11473044B2

公开(公告)日：2022-10-18

申请号：US16891141

申请日：2020-06-03

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Narasimhan Sundaram

IPC: C12M1/00 ,  C12N1/12 ,  C10L1/02

Abstract: A photobioreactor includes one or more annular chambers concentrically positioned about a central axis, and an algae slurry contained within the one or more annular chambers.

公开(公告)号：US11707707B2

公开(公告)日：2023-07-25

申请号：US17884383

申请日：2022-08-09

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Narasimhan Sundaram ,  Patrick P. McCall ,  Brendon L. Keinath ,  Ananda K. Nagavarapu

IPC: B01D53/04 ,  B01D53/08

CPC classification number: B01D53/0431 ,  B01D53/0462 ,  B01D53/08 ,  B01D2253/204 ,  B01D2257/504 ,  B01D2259/40086

Abstract: Systems and methods are provided for separation of CO2 from dilute source streams. The systems and methods for the separation can include use of contactors that correspond radial flow adsorbent modules that can allow for efficient contact of CO2-containing gas with adsorbent beds while also facilitating use of heat transfer fluids in the vicinity of the adsorbent beds to reduce or minimize temperature variations. In particular, the radial flow adsorbent beds can be alternated with regions of axial flow heat transfer conduits to provide thermal management. The radial flow structure for the adsorbent beds combined with axial flow conduits for heat transfer fluids can allow for sufficient temperature control to either a) reduce or minimize temperature variations within the adsorbent beds or b) facilitate performing the separation using temperature as a swing variable for controlling the working capacity of the adsorbent.

公开(公告)号：US20220379257A1

公开(公告)日：2022-12-01

申请号：US17884383

申请日：2022-08-09

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Narasimhan Sundaram ,  Patrick P. McCall ,  Brendon L. Keinath ,  Ananda K. Nagavarapu

IPC: B01D53/04 ,  B01D53/08

Abstract: Systems and methods are provided for separation of CO2 from dilute source streams. The systems and methods for the separation can include use of contactors that correspond radial flow adsorbent modules that can allow for efficient contact of CO2-containing gas with adsorbent beds while also facilitating use of heat transfer fluids in the vicinity of the adsorbent beds to reduce or minimize temperature variations. In particular, the radial flow adsorbent beds can be alternated with regions of axial flow heat transfer conduits to provide thermal management. The radial flow structure for the adsorbent beds combined with axial flow conduits for heat transfer fluids can allow for sufficient temperature control to either a) reduce or minimize temperature variations within the adsorbent beds or b) facilitate performing the separation using temperature as a swing variable for controlling the working capacity of the adsorbent.

公开(公告)号：US11384329B2

公开(公告)日：2022-07-12

申请号：US16891211

申请日：2020-06-03

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Narasimhan Sundaram

IPC: C12M3/00 ,  C12M1/00 ,  C12M1/34

Abstract: A system for growing algae includes a gas concentrator configured to receive a first gas containing CO2 at a first concentration and discharge a second gas containing CO2 at a second concentration higher than the first concentration, and a photobioreactor containing algae in an algae slurry and fluidically coupled to the gas concentrator to receive the second gas. A recycling line extends from a gas outlet on the photobioreactor to remove a third gas from the photobioreactor for future use in the photobioreactor.

公开(公告)号：US11446601B2

公开(公告)日：2022-09-20

申请号：US16730205

申请日：2019-12-30

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Narasimhan Sundaram ,  Patrick P. McCall ,  Brendon L. Keinath ,  Ananda K. Nagavarapu

IPC: B01D53/04 ,  B01D53/08

Abstract: Systems and methods are provided for separation of CO2 from dilute source streams. The systems and methods for the separation can include use of contactors that correspond radial flow adsorbent modules that can allow for efficient contact of CO2-containing gas with adsorbent beds while also facilitating use of heat transfer fluids in the vicinity of the adsorbent beds to reduce or minimize temperature variations. In particular, the radial flow adsorbent beds can be alternated with regions of axial flow heat transfer conduits to provide thermal management. The radial flow structure for the adsorbent beds combined with axial flow conduits for heat transfer fluids can allow for sufficient temperature control to either a) reduce or minimize temperature variations within the adsorbent beds or b) facilitate performing the separation using temperature as a swing variable for controlling the working capacity of the adsorbent.