Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1986-05-30
1987-05-19
Kratz, Peter
Gas: heating and illuminating
Processes
Fuel mixtures
44 51, 48202, 48DIG7, 48DIG10, 48206, 406 12, 406 29, 406197, C10J 346
Patent
active
046664629
ABSTRACT:
Control process for producing an aqueous slurry of solid carbonaceous fuel having a desired solids concentration for feed to a partial oxidation gas generator by grinding together in a size reduction zone a recycle aqueous slurry stream comprising carbon-containing particulate solids, a stream of solid carbonaceous fuel, and a specific amount of make-up water. No valves are in the line or path between the size reduction zone and the feed tanks for the solid carbonaceous fuel and recycle aqueous slurry. A system control unit automatically calculates the amount of make-up water and provides a corresponding signal to control the flow rate. Input signals that are provided to the system control unit include those corresponding to the weigh belt feeder speed and moisture content for the solid carbonaceous fuel; and pump speed, weight fraction, temperature, and density of the solids for the slurry of recycle particulate solids.
REFERENCES:
patent: 3514217 (1970-05-01), Reiss
patent: 3607157 (1971-09-01), Schlinger et al.
patent: 3940184 (1976-02-01), McCain
patent: 4390957 (1983-06-01), Skarlos et al.
patent: 4479810 (1984-10-01), Marion et al.
patent: 4481015 (1984-11-01), Lusch et al.
Brent Albert
Kratz Peter
Kulason Robert A.
O'Loughlin James J.
Texaco Inc.
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