Randhir Randhir Desai

US Patent:

61491373, Nov 21, 2000

Filed:

Nov 2, 1998

Appl. No.:

9/184751

Inventors:

Bruce C. Johnson - Broken Arrow OK
Robert R. Trimble - Sand Springs OK
Randhir C. Desai - Tulsa OK

Assignee:

Callidus Technologies, Inc. - Tulsa OK

International Classification:

B01F 304

US Classification:

261 27

Abstract:

A quench system for cooling hot flue gases from combustion systems is disclosed. The quench system includes a venturi mounted in a quench vessel. The water level in the quench vessel may be raised or lowered in accordance with the flow rate of the gases to be quenched. When the pressure drop across the venturi is insufficient to achieve the desired cooling to adiabatic saturation temperature, the water level is increased so that the downcomer connected to the venturi is submerged and the additional pressure drop further cools the flue gases.