초록 ▼

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 5

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.

대표청구항 ▼

[ I claim:] [1.] A process for treating municipal solid waste (MSW) material containing organic and inorganic portions, and producing clean hydrocarbon liquid products, the process comprising:(a) providing a municipal solid waste (MSW) material including at least about 30 wt. % organic material port

[ I claim:] [1.] A process for treating municipal solid waste (MSW) material containing organic and inorganic portions, and producing clean hydrocarbon liquid products, the process comprising:(a) providing a municipal solid waste (MSW) material including at least about 30 wt. % organic material portion, and sizing the solid waste material to produce particulates having size less than about 1.0 inch;(b) density separating the sized particulates by float-sink action in a polar acidic organic liquid medium having specific gravity of 0.9-1.5 at 15-90.degree. C. temperature, and removing a lower density organic material portion from a higher density inorganic material portion;(c) digesting the organic material portion in a polar acidic organic liquid medium at conditions of 500-850.degree. F. temperature, 300-2000 psig pressure and 5-100 minutes residence time and providing a digested organic effluent material; and(d) fractionating the digested organic effluent material and recovering a gaseous fraction, a light hydrocarbon liquid fraction, a polar acidic organic liquid fraction, and a heavy liquid slurry fuel product fraction having heating value at least about 9,000 Btu/lb.