Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing hydrocarbon
Patent
1983-09-28
1986-04-22
Naff, David M.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing hydrocarbon
210611, 210616, 435168, 435176, 435282, 435288, 435316, 435801, 435819, C12P 502, C12P 300, C12N 1114, C10G 3200, C12M 140, C12M 102, C02F 300
Patent
active
045842710
ABSTRACT:
Apparatus and a method are disclosed for reducing sulfate contained within a flowable material to hydrogen sulfide by the use of two stages of reaction. The flowable material is deoxygenated and then introduced into a first reactor which contains a sulfate reducing bacteria such as a Desulfovibrio or Desulfotomoculum. Hydrogen sulfide is removed from the first reactor and the remaining portion of the flowable material is subjected to a separating action to produce a supernatant component and a sludge component. The sludge component is reintroduced to the first reactor which is generally devoid of packing or support and the supernatant is introduced into a second reactor which is preferably in the nature of a supported film reactor. Mixed products including carbonate may be removed from the first reactor. The second reactor also contains anaerobic sulfate reducing bacteria. Hydrogen sulfide, low sulfate water and carbonates may be withdrawn from the second reactor. The hydrogen sulfide may be oxidized to produce free sulfur.
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Lebel Alon
Spencer, III Herbert W.
Stern Jay L.
Joy Manufacturing Company
Krawczewicz Louanne C.
Naff David M.
Silverman Arnold B.
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