Distillation: apparatus – Apparatus – Systems
Patent
1994-10-19
1995-08-15
Bascomb, Jr., Wilbur
Distillation: apparatus
Apparatus
Systems
202175, 202183, 202202, 202205, 202233, 202234, 2022671, 159 29, 203 42, 203 87, 203100, 203DIG25, B01D 302, B01D 310
Patent
active
054416051
ABSTRACT:
Process and apparatus for reclaiming or concentrating waste aqueous solutions of gas treating chemicals, such as alkanolamines, used for removing acid components or water vapor from natural gas. The process involves heating the waste solution under a high vacuum to form a vapor and a liquid residue. The temperature and vacuum can be varied to form a vapor consisting mainly of water vapor or a vapor containing both water vapor and vaporized gas treating chemical. The vapor is subsequently condensed or passed through a wash column to produce a concentrated solution. The liquid residue is heated by passing it through a single pass, generally co-current heater at a rate which avoids localized overheating of a liquid to a temperature above the decomposition temperature of the gas treating chemical. The heated liquid residue is then used to heat the feed waste solution by being thoroughly mixed with it, thus avoiding overheating of the feed solution. The production of corrosive elements and the use of prolonged residence times is avoided so that the apparatus may be made of carbon steel rather than more expensive stainless steel.
REFERENCES:
patent: 2159621 (1939-05-01), Van Dijck
patent: 2619453 (1952-11-01), Andersen
patent: 2800434 (1957-07-01), Howlett et al.
patent: 2892775 (1959-06-01), Anderson
patent: 3073752 (1963-01-01), Mention
patent: 3234109 (1966-02-01), Lustenader
patent: 3294650 (1966-12-01), Manteufel
patent: 3321380 (1967-05-01), Hilburn
patent: 3388046 (1968-06-01), Hendrix
patent: 3506543 (1970-04-01), Hayes et al.
patent: 3532606 (1970-10-01), Silbert
patent: 3658462 (1972-04-01), Van Scoy
patent: 3772082 (1973-11-01), Dunn
patent: 3887425 (1975-06-01), Munch
patent: 4045293 (1977-08-01), Cooksley
patent: 4145393 (1979-03-01), von Plessen et al.
patent: 4152217 (1979-05-01), Eisenberg et al.
patent: 4277311 (1981-07-01), Kwasnoski et al.
patent: 4434034 (1984-02-01), Padilla
patent: 4548620 (1985-10-01), Albiol
patent: 4798654 (1989-01-01), Iimuro et al.
patent: 4798910 (1989-01-01), Herrin
patent: 4808344 (1989-02-01), Hallenburg et al.
patent: 4975154 (1990-12-01), Palmer et al.
patent: 5158649 (1992-10-01), Beasley et al.
Beasley Todd
Merritt Dwight A.
Bascomb, Jr. Wilbur
Canadian Chemical Reclaiming Ltd.
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