Treating municipal solid waste for producing hydrocarbon fuel pr

Details Treating municipal solid waste for producing hydrocarbon fuel pr Treating municipal solid waste for producing hydrocarbon fuel pr

1998-06-19

1999-12-14

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 20, 241 21, 241DIG38, B02C 1912

Patent

active

060006390

ABSTRACT:
Municipal solid waste (MSW) material is sized to provide a particulate material which is density separated into organic and inorganic portions using a suitable polar acidic organic liquid medium. The organic-MSW portion is digested in the polar acidic organic medium such as phenol at conditions of 500-850.degree. F. temperature, 300-2000 psig pressure and 5-100 minutes residence time. The digested organic material is then fractionated to produce gas, a light liquid boiling below about 170.degree. C., the polar acidic organic liquid medium such as phenol, boiling between 170 and 220.degree. C., and a liquid slurry boiling above about 220.degree. C. and including a powder material melting above about 400.degree. C. The recovered acidic organic liquid fraction is preferably recycled back to the density separation and/or digesting steps for further use in the process. The liquid slurry fraction product having heating value of 9,000-16,000 Btu/lb. can be utilized as a clean fuel for combustion such as in steam boilers, or it can be catalytically hydrogenated for producing lower boiling hydrocarbon liquid fuels.

REFERENCES:
patent: 3668077 (1972-06-01), Ban
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patent: 4113185 (1978-09-01), Marsh et al.
patent: 4624417 (1986-11-01), Gangi
patent: 5387267 (1995-02-01), Warf et al.
patent: 5649785 (1997-07-01), Djerf et al.

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