Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1984-03-28
1989-07-04
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
423578R, B01D 1900
Patent
active
048447200
ABSTRACT:
An improved method for reducing the hydrogen sulfide and hydrogen polysulfide content of liquid sulfur, wherein, the liquid sulfur is brought into contact with a solid degradation catalyst consisting of alumina or a cobalt-molybdenum impregnated alumina at 250.degree. F. to 320.degree. F., preferably 270.degree.-275.degree. F., in the presence of a gaseous purge stream of air or oxygen enriched air. In addition to exhibiting a many fold increase in rate of reaction relative to the use of either the catalyst without a purge gas or the purge gas alone, the use of an oxygen containing purge gas (such as wet air) in combination with the catalyst (such as alumina) shows a significant improvement, when compared to the use of a dry nitrogen purge in combination with the catalyst under similar conditions, in the kinetics of both the conversion of the polysulfides to sulfide (rate constant of 0.611 for wet air vs. 0.409 for dry nitrogen at 300.degree. F.) and the removal of hydrogen sulfide from liquid sulfur (rate constant of 0.877 in wet air vs. 0.62 for dry nitrogen at 300.degree. F.).
REFERENCES:
patent: 1331645 (1920-02-01), Hood
patent: 2092625 (1937-09-01), Rich
patent: 2169261 (1939-08-01), Lee et al.
patent: 2994588 (1961-08-01), Eickmeyer
patent: 3447903 (1969-06-01), Wiewiorowski
patent: 3807141 (1974-04-01), Estys et al.
patent: 3864460 (1975-02-01), Connell
patent: 3890120 (1975-06-01), Guyot et al.
patent: 3978004 (1976-08-01), Daumas et al.
patent: 4054642 (1977-10-01), Daumas et al.
"The Removal of H.sub.2 S Dissolved in Liquid Sulphur", W. J. Rennie, Quarterly Bulletin, vol. IX, No. 4, Jan.-Mar. 1973, pp. 19-23.
"The Sulfur-Hydrogen Sulfide System", Wiewiorowski et al., The Journal of Physical Chemistry, vol. 70, No. 1, Jan. 1966, pp. 234-238.
"H.sub.2 S Removal from Liquid Sulphur", King, Energy Processing Canada, Mar.-Apr. 1974, pp. 40, 42.
McGalliard Russell L.
Pendergraft Paul T.
Amoco Corporation
Spitzer Robert
LandOfFree
Process for removal of hydrogen sulfide and hydrogen polysulfide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for removal of hydrogen sulfide and hydrogen polysulfide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removal of hydrogen sulfide and hydrogen polysulfide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-850165