US 12,448,301 B2
Desalination system and desalination process therefor
Naef A.A. Qasem, Dhahran (SA)
Assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed on Jan. 25, 2023, as Appl. No. 18/159,442.
Prior Publication US 2024/0262715 A1, Aug. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C02F 1/14 (2023.01); C02F 1/26 (2023.01); C02F 1/44 (2023.01); C02F 103/08 (2006.01)
CPC C02F 1/14 (2013.01) [C02F 1/265 (2013.01); C02F 1/447 (2013.01); C02F 2103/08 (2013.01); C02F 2201/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A desalination system, comprising:
a vapor-absorption refrigeration (VAR) unit, comprising:
a first desorber and a second desorber;
an absorber;
an evaporator;
a condenser;
a first heat exchanger and a second heat exchanger;
a first lithium bromide (LiBr) solution pump and a second LiBr solution pump;
at least four throttling valves including a first throttling valve, a second throttling valve, a third throttling valve, and a fourth throttling valve;
a direct contact membrane distillation (DCMD) unit having a plurality of modules, and each module comprises:
a saltwater feed compartment and a water compartment, wherein the saltwater feed compartment and the water compartment are separated by a membrane so that water vapor is generated in the saltwater feed compartment and is transferred through the membrane to condense in the water compartment;
wherein the absorber is in fluid communication with the second heat exchanger via the second LiBr solution pump;
wherein the second heat exchanger is in fluid communication with the first heat exchanger via the first LiBr pump;
wherein the second heat exchanger is in fluid communication with the second desorber;
wherein the first heat exchanger is in fluid communication with the first desorber;
wherein the first desorber is in fluid communication with the first heat exchanger;
wherein the first heat exchanger is in fluid communication with the second desorber via the first throttling valve;
wherein the second desorber is in fluid communication with the second heat exchanger;
wherein the second heat exchanger is in fluid communication with the absorber via the second throttling valve;
wherein the second desorber is in fluid communication with the condenser via the third throttling valve;
wherein the condenser is in fluid communication with the evaporator via the fourth throttling valve;
wherein the evaporator is in fluid communication with the absorber;
wherein the condenser is in fluid communication with the saltwater feed compartment of the DCMD unit; and
wherein the absorber is in fluid communication with the saltwater feed compartment of the DCMD unit.