Apparatus for producing methane-rich gas using a fixed kiln with

Details Apparatus for producing methane-rich gas using a fixed kiln with Apparatus for producing methane-rich gas using a fixed kiln with

1994-12-06

1996-04-16

Kratz, Peter

Gas: heating and illuminating

Generators

Retort

48 86R, 48 87, 48108, 48122, 202113, 202117, 202128, 202129, 414198, 414200, 414208, C10J 320, C10J 330

Patent

active

055078460

ABSTRACT:
A gasifier for producing methane-rich fuel gas from a biomass material feed includes at least one cylindrical vessel, and an axially extending rotor mounted within the vessel. A feeding system is mounted to the vessel at the input end for introducing feed to the vessel. The feeding system includes two independently operated pistons, slidable in an inclined cylinder, and two slide valves, disposed in a vertical pipe above the inclined cylinder. The slide valves serve to apportion the amount of feed delivered to the gasifier, while the pistons selectively seal the pressurized interior of the kiln from the feed hopper. A discharge system for removing residue from the kiln also includes two pistons which selectively seal kiln from the environment. The gasifier of the present invention may also include double-plate intake and exhaust manifolds, and a box beam rotor, optionally including zinc oxide disposed in the hollow, central rotor shaft defined by the vanes of the box beam rotor.

REFERENCES:
patent: 2151514 (1939-03-01), Heinen
patent: 2912126 (1959-11-01), Alspaugh et al.
patent: 2966215 (1960-12-01), Durkee
patent: 2983653 (1961-05-01), Danulat et al.
patent: 4244705 (1981-01-01), Seidl et al.
patent: 4261795 (1981-04-01), Reilly
patent: 4308103 (1981-12-01), Rotter
patent: 4397657 (1983-08-01), Selep et al.
patent: 4412889 (1983-11-01), Oeck
patent: 4597772 (1986-07-01), Coffman

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