Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Patent
1983-05-24
1985-05-28
Richman, Barry S.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
34 29, 55 82, 55 92, 55238, 55261, 55312, 55457, 159 4B, 159 4D, 159 4J, 159 4S, 159 481, 422168, 423242, B01D 116
Patent
active
045199906
ABSTRACT:
A spray dryer apparatus for contacting a hot gas stream containing gaseous impurities with an aqueous medium containing an absorbent for the impurities to produce a gas stream of reduced impurity content and dried powder products. The apparatus includes a chamber formed symmetrically about a vertical axis and an atomizer means located in an upper portion of the chamber for introducing a finely dispersed spray of the aqueous medium, a conduit for delivering the hot gas stream to the chamber and a gas injection means for receiving a major portion of the hot gas stream from the conduit and introducing it circumferentially about the atomizer means. The gas injection means imparts both axial and angular velocity components to the major portion of the hot gas stream whereby the hot gas stream swirls downwardly through the chamber.
The apparatus provides a bypass means for withdrawing a minor portion (about 5 to 25 vol. %) of the hot gas stream from the conduit and a duct for introducing the withdrawn minor portion of hot gas into the chamber at a tangent to a radius extending from the vertical axis and in a substantially horizontal plane. An essential feature of the invention is that the minor portion of the hot gas is introduced into the chamber in a direction counter to the direction of swirl of the major portion of the hot gas passing downwardly through the chamber.
REFERENCES:
patent: 1417083 (1922-05-01), MacLachlan
patent: 1989406 (1935-01-01), Doolittle
patent: 2081909 (1937-06-01), Bowen
patent: 2222396 (1940-11-01), Bowen
patent: 2473035 (1949-06-01), Meade et al.
patent: 2575119 (1951-11-01), Peebles et al.
patent: 2936043 (1960-05-01), Armstrong et al.
patent: 3304694 (1967-02-01), Manger et al.
patent: 3616619 (1971-11-01), Klein
patent: 3669425 (1972-06-01), Copeland
patent: 3720314 (1973-03-01), Phillippi
patent: 3895994 (1975-07-01), Saguchi et al.
patent: 3932587 (1976-01-01), Grantham et al.
patent: 4176083 (1979-11-01), McGovern et al.
patent: 4197278 (1980-04-01), Gehri et al.
patent: 4226603 (1980-10-01), Larsson et al.
patent: 4301128 (1981-11-01), Hastrup
Bevilaqua Paul M.
Stachura Stanley J.
Donofrio John
Field Harry B.
Hamann H. Fredrick
Richman Barry S.
Rockwell International Corporation
LandOfFree
Spray dryer for the purification of a gas does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spray dryer for the purification of a gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spray dryer for the purification of a gas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-868246