US 12,378,177 B2
Reducing energy consumption in MEG reclamation
David John Knight, Gatwick (GB); Steven Langley, Gatwick (GB); and Bryan Bussell, Sutton (GB)
Assigned to CAMERON INTERNATIONAL CORPORATION, Houston, TX (US)
Appl. No. 17/756,449
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Dec. 1, 2020, PCT No. PCT/US2020/062701
§ 371(c)(1), (2) Date May 25, 2022,
PCT Pub. No. WO2021/113236, PCT Pub. Date Jun. 10, 2021.
Claims priority of provisional application 62/942,489, filed on Dec. 2, 2019.
Prior Publication US 2023/0002298 A1, Jan. 5, 2023
Int. Cl. C07C 29/80 (2006.01); B01D 1/00 (2006.01); B01D 1/28 (2006.01)
CPC C07C 29/80 (2013.01) [B01D 1/0041 (2013.01); B01D 1/2856 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method, comprising:
vaporizing, in a vaporizer, a first liquid via heat transfer from a second liquid to form a vaporized stream that exits the vaporizer, the vaporized stream including monoethylene glycol (MEG);
increasing a pressure of at least a portion of the vaporized stream to form a pressurized vapor stream;
withdrawing a portion of the second liquid from the vaporizer;
increasing a temperature of the portion of the second liquid by transferring heat from the pressurized vapor stream to the portion of the second liquid without mixing the pressurized vapor stream with the portion of the second liquid; and
returning the portion of the second liquid to the vaporizer after the increasing of the temperature of the portion of the second liquid.