Adiabatic expansion orifice assembly for passing a slurry from a

Details Adiabatic expansion orifice assembly for passing a slurry from a Adiabatic expansion orifice assembly for passing a slurry from a

1981-11-16

1983-12-20

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Soap making

239424, 239591, 239592, 239600, 239602, B01J 800, B05B 100

Patent

active

044217226

ABSTRACT:
An adiabatic expansion orifice assembly for substantially instantaneously passing a coal slurry from a high pressure region to a low pressure region and a corresponding process are disclosed. The orifice assembly includes a housing having an exit end wall and a passageway through the housing. The passageway terminates in a substantially cylindrical portion or opening adjacent the exit end wall. The effective dimensions of the opening provide a flow rate whereby the slurry passes from the high pressure region through the opening to the low pressure region in less than a predetermined period of time, most preferably less than approximately 0.3 microseconds.
The corresponding process involves passing a coal slurry through an orifice in less than the predetermined period of time. This process provides substantially instantaneous transition from a high pressure region to a low pressure region.

REFERENCES:
patent: 2823982 (1958-02-01), Saladin et al.
patent: 3705693 (1972-12-01), Franz
Pelton et al.-"Nasa Tech. Support Pack on Screw-Extruded Cont. Coal Proc. Method and Means. Nasa Contract No. NAS-7-100 (1977).

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