Patent SG-11201407825R-A (SG)
Title: Thermodynamic balancing of combined heat and mass exchange devices
Inventor: ZUBAIR SYED
IPC: B01F3/04
Filed: 2013-07-02
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 23 January 2014 (23.01.2014) WIPOIPCT (10) International Publication Number WO 2014/014660 A1 (51) International Patent Classification: K011) 1/00 (2006.01) C02F1/10 (2006.01) K011) 1/14 (2006.01) C02F1/12 (2006.01) B01D 5/00 (2006.01) C02F1/14 (2006.01) C02F1/04 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/049129 2 July 2013 (02.07.2013) English English (30) Priority Data: 13/550,094 16 July 2012 (16.07.2012) US (71) Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY [US/US]; 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (US). KING FAHD UNIVERSITY OF PETROLEUM & MINERALS [SA/SA]; University Boulevard, 31261 Dhahran (SA). (72) Inventors: GOVINDAN, Prakash; Massachusetts Insti­ tute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (US). THIEL, Gregory; Massachu­ setts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (US). MCGOVERN, Ronan; Massachusetts Institute of Technology, 77 Mas­ sachusetts Avenue, Cambridge, Massachusetts 02139 (US). LIENHARD, John; Massachusetts Institute of Techno­ logy, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (US). DAS, Sarit; Massachusetts Institute of Tech­ nology, 77 Massachusetts Avenue, Cambridge, Massachu­ setts 02139 (US). CHEHAYEB, Karim; Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cam­ bridge, Massachusetts 02139 (US). ZUBAIR, Syed; King Fahd University of Petroleum & Minerals, 3034 Ittihad Street, 31261 Dhahran (SA). ANTAR, Mohammed; King Fahd University of Petroleum & Minerals, 3304 Ittihad Street, 31261 Dhahran (SA). (74) Agent: SAYRE, Robert; Modern Times Legal, 1 Broad­ way, 14th Floor, Cambridge, Massachusetts 02142 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available)'. AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. [Continued on next page] (54) Title: THERMODYNAMIC BALANCING OF COMBINED HEAT AND MASS EXCHANGE DEVICES o •t i-H © T? i-H o CJ o & FIG. 1 (57) Abstract: A carrier-gas mixture is dir­ ected through a fluid flow path (16, 18) in a combined heat and mass transfer device (12, 14), which can be operated at sub-at­ mospheric pressure. Heat and mass are transferred from/ to the carrier-gas mixture via interaction with a liquid composition including vaporizable component in a a li­ quid state to substantially change the con­ tent of the vaporizable component in the carrier-gas mixture via evaporation or con­ densation. The mass flow rate of the carri- er-gas mixture is varied by extracting/in- jecting (60, 62, 64) the carrier-gas mixture from at least one intermediate location in the fluid flow path, and/or the mass flow rate of the liquid composition is varied by extracting/injecting the liquid composition from at least one intermediate location in the fluid flow path. The flow of the carrier- gas mixture or the liquid composition is regulated to reduce the average local en­ thalpy pinch. WO 2014/014660 A11II llll IIII III III Hill III III III Hill 111 lllll llll 111 111 mill llll 111 llll (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))