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Performance of gas-atomized spray scrubbers at high pressure. [1-10 Atm]

Journal Article · · J. Air Pollut. Control Assoc.; (United States)
A large number of pressurized coal gasification processes being developed proposed to use venturi scrubbers for particulate removal at high pressures. Theoretical predictions based on venturi scrubber performance models indicate that particle collection efficiency will decrease severely in these high gas pressure applications. An exploratory theoretical and experimental program was performed to study the effect of gas pressure on venturi scrubber performance. Experiments were done on a 0.47 m/sup 3//s (1000 acfm) pilot scale venturi scrubber. Particle collection performance was determined as a function of scrubber pressure drop for venturi scrubbers operating in the range of 1-10 atm total pressure. Experimental results confirmed that the particle collection efficiency of venturi scrubbers decreases for a given scrubber pressure drop as total gas pressure is increased. To achieve the same particle collection efficiency, the pressure drop across a venturi scrubber operated at 10 atm is about 10 times that of the same operated at 1 atm pressure.
Research Organization:
Air Pollution Tech., Inc., San Diego, CA
DOE Contract Number:
AC21-79ET14812
OSTI ID:
6530714
Journal Information:
J. Air Pollut. Control Assoc.; (United States), Journal Name: J. Air Pollut. Control Assoc.; (United States) Vol. 34:7; ISSN JPCAA
Country of Publication:
United States
Language:
English