Method of and apparatus for charging ground hydrocarbonaceous ma

Details Method of and apparatus for charging ground hydrocarbonaceous ma Method of and apparatus for charging ground hydrocarbonaceous ma

1981-06-12

1983-08-23

Sheridan, Robert G.

Material or article handling

Chamber of a type utilized for a heating function and...

Charging of chamber

48 86R, 414221, 414786, C10J 330

Patent

active

044001258

ABSTRACT:
Method and apparatus for charging finely ground hydrocarbonaceous material (e.g. coal, shale, liquite, oil sand), to a gasification reactor by gravity and compressed gas is disclosed.
In accordance with the invention, ground coal particles, for example, are supplied by gravity feed to a charge forming hopper and from the hopper to a charging cylinder. The charge is pressured with a volume of gas from 3 to 5 times the volume of the charge to form a cushion of gas above it. Pressure is then increased on the gas cushion, as by a piston in the cylinder, until the pressure in the cylinder exceeds the pressure in the reactor. Such pressure automatically activates a closure arrangement between the cylinder and reactor. The closure arrangement automatically recloses the reactor when pressure between the reactor and cylinder equalizes. Desirably, the closure arrangement is purged by steam prior to closing.

REFERENCES:
patent: 2151514 (1939-03-01), Heinen
patent: 4302143 (1981-11-01), Grimminger et al.

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