Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1978-01-03
1980-04-15
Bashore, S. Leon
Gas: heating and illuminating
Processes
Fuel mixtures
48197R, 71 8, 71 12, 165163, 435167, 210 12, 210 16, C10J 106, C02C 114
Patent
active
041982118
ABSTRACT:
A process of treating an animal manure slurry susceptible to aerobic composting and anaerobic microbiological degradation with the production of a fuel gas, comprises: separating the slurry into a first, solids concentrated, fraction of relatively coarse particle size, and a second, solids dilute, fraction of relatively fine particle size; carrying out on the first fraction an aerobic composting reaction which is exothermic; carrying out on the second fraction an anaerobic microbiological reaction in which a fuel gas comprising methane is produced; and utilizing heat from the exothermic reaction to promote the fuel gas producing reaction. The plant for carrying out the process advantageously comprises a reactor for the exothermic reaction comprising a frusto-conical outer shell portion within which is located a heat exchanger of conical cage configuration; liquor from the anaerobic reaction circulates through the heat exchanger for heat exchange with solid composting material passing downwardly through the frusto-conical shell portion in direct contact with the heat exchanger.
REFERENCES:
patent: 1109103 (1914-09-01), Baum
patent: 2190598 (1940-02-01), Fischer
patent: 2315577 (1943-04-01), Bach
patent: 3139067 (1964-06-01), VanDenBroek et al.
patent: 3388057 (1968-06-01), Callahan
patent: 3487015 (1969-12-01), Boester
patent: 4134830 (1979-01-01), Skogman et al.
Culp et al., Advanced Wastewater Treatment, "Selecting and Combining Unit Processes," pp. 271-285, Van Nostrand Reinhold Co.
Bashore S. Leon
Manning, Jr,. Wellington M.
Wilburn, Jr. Luke J.
Yeung George C.
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