Gas separation: processes – Solid sorption – Moving sorbent
Patent
1996-08-21
1998-10-06
Smith, Duane S.
Gas separation: processes
Solid sorption
Moving sorbent
55269, 62 94, 62271, 95114, 95115, 95126, 96125, 96126, 96146, B01D 5306
Patent
active
058171673
ABSTRACT:
A desiccant dehumidifier is provided in which a desiccant material is applied to a first end of a heat pipe heat exchanger. During the sorption phase, a supply air stream is exposed to the desiccant material on the first end of the heat pipe heat exchanger and a second air stream, which could be ambient atmosphere, is exposed to the second end of the heat pipe heat exchanger. The moisture from the supply air stream is transferred to the desiccant material. However, the heat pipe heat exchanger acts as a heat sink and adsorbs the heat generated by the moisture transfer and transfers it to the second end of the heat pipe heat exchanger. At the second end of the heat pipe heat exchanger, the heat is transferred to the second air stream. As a result, both the supply air stream and the desiccant material remain at a substantially constant temperature during the sorption phase. During the desorption phase, a heated air stream is exposed to the second end of the heat pipe heat exchanger, and a regeneration air stream is exposed to the first end of the heat pipe heat exchanger. The heat from the heated air stream is transferred to the heat pipe heat exchanger, and then from the heat pipe heat exchanger to the desiccant material. As a result, the surface vapor pressure of the desiccant material rises, and the moisture from the desiccant material is transferred to the regeneration air stream. In addition, in accordance with a further embodiment, after the heated air stream is cooled as it is transfers heat to the heat pipe heat exchanger, it is also used as the regeneration air stream.
REFERENCES:
patent: 1602500 (1926-10-01), Nuss
patent: 1814028 (1931-07-01), Egli
patent: 1872783 (1932-08-01), Miller
patent: 1912784 (1933-06-01), Miller et al.
patent: 2661808 (1953-12-01), Kahle
patent: 2675089 (1954-04-01), Kahle
patent: 2811223 (1957-10-01), Newton
patent: 2926502 (1960-03-01), Munters et al.
patent: 2957321 (1960-10-01), Munters et al.
patent: 2993563 (1961-07-01), Munters et al.
patent: 3144901 (1964-08-01), Meek
patent: 3251402 (1966-05-01), Glav
patent: 3398510 (1968-08-01), Pennington
patent: 3401504 (1968-09-01), Moragne
patent: 3470708 (1969-10-01), Weil et al.
patent: 3774374 (1973-11-01), Dufour et al.
patent: 3844737 (1974-10-01), Macriss et al.
patent: 3855719 (1974-12-01), Jonsson
patent: 3880224 (1975-04-01), Weil
patent: 4062129 (1977-12-01), Yoshida et al.
patent: 4134743 (1979-01-01), Macriss et al.
patent: 4176523 (1979-12-01), Rousseau
patent: 4180126 (1979-12-01), Rush et al.
patent: 4180985 (1980-01-01), Northrup, Jr.
patent: 4185969 (1980-01-01), Bulang
patent: 4313312 (1982-02-01), Ito et al.
patent: 4341539 (1982-07-01), Gidaspow et al.
patent: 4391616 (1983-07-01), Imanmura
patent: 4430864 (1984-02-01), Mathiprakasam
patent: 4484617 (1984-11-01), Sizmann
patent: 4497361 (1985-02-01), Hajicek
patent: 4527398 (1985-07-01), Schaetzle
patent: 4536198 (1985-08-01), Strain
patent: 4574872 (1986-03-01), Yano et al.
patent: 4594860 (1986-06-01), Coellner et al.
patent: 4631074 (1986-12-01), Eschner
patent: 4650575 (1987-03-01), White, Jr.
patent: 4701189 (1987-10-01), Oliker
patent: 4711097 (1987-12-01), Besik
patent: 4723417 (1988-02-01), Meckler
patent: 4769053 (1988-09-01), Fischer, Jr.
patent: 4775484 (1988-10-01), Schmidt et al.
patent: 4778492 (1988-10-01), Dawson
patent: 4860548 (1989-08-01), Ryham
patent: 4926618 (1990-05-01), Ratliff
patent: 4941324 (1990-07-01), Peterson et al.
patent: 4948392 (1990-08-01), Rush
patent: 5024062 (1991-06-01), Hellman
patent: 5040375 (1991-08-01), Von Dobeln
patent: 5042266 (1991-08-01), Yamashita et al.
patent: 5057128 (1991-10-01), Panzica et al.
patent: 5070703 (1991-12-01), Wilkinson
patent: 5147420 (1992-09-01), Claesson
patent: 5148374 (1992-09-01), Coellner
patent: 5167679 (1992-12-01), Maekawa et al.
patent: 5169414 (1992-12-01), Panzica et al.
patent: 5170633 (1992-12-01), Kaplan
patent: 5176005 (1993-01-01), Kaplan
patent: 5238052 (1993-08-01), Chagnot
patent: 5242473 (1993-09-01), Ogasahara
patent: 5431716 (1995-07-01), Ebbeson
patent: 5448895 (1995-09-01), Coellner et al.
patent: 5460004 (1995-10-01), Tsimerman
patent: 5502975 (1996-04-01), Brickley et al.
patent: 5512083 (1996-04-01), Dunne
Pesaran, Parent, Meckler and Novosel, Evaluation of a Liquid Desiccant-Enhanced Heat Pipe Air Preconditioner, May 4, 1995, pp. 713-724.
Davison Silicia Gels,.
Harriman III, The Dehumidification Handbook Second Edition, Munters Cargocaire, 1990, chapters 1-3 and 6.
W.R. Grace & Co. -Conn., Davison Chemical Division, How Silica Gel Works In Gas Phase, pp. 5-6.
W.R. Grace & Co.-Conn., Davison Chemical Divison, Fundamentals of Dynamic Adsorption, pp. 7, 10 and 11.
W.R. Grace & Co.-Conn., Davison Chemical Division, Factors Affecting The Dynamic Capacity of Silica Gel Adsorbers, pp. 11-14.
Adcoa Adsorbents & Desiccants Corp of America, Technical Data Sheets.
Des Champs Laboratories Incorporated
Smith Duane S.
LandOfFree
Desiccant based dehumidifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Desiccant based dehumidifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Desiccant based dehumidifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-73690