What is the minimum l/g that you would approve

Reference no: EM13536725

A company has submitted plans for a hydrogen sulfide (H2S) scrubber.H2S is to be removed from the waste air discharge by scrubbing with a dilute: triethanolamine-water solution in a packed tower at atmospheric pressure. Specification indicate that the gas flow rate is 10,000 acfma at 70F and contains 15,000 ppm H2S. The inlet liquid is to be solute-free. The H2S must be reduced to 500 ppmv. The pilot plant data indicate that Henery's Law applies (H= 2.0 mole fraction in air/mole fraction in liquid) and that HTU (Height of Transfer Unit) is 1.94 ft. The company proposes to install a 5- ft diameter, 10ft high packed tower.

(a) What is the minimum L/G (gal/1000ft^3) that you would approve?

(b) If the tower is operated at 80.65 lb molesof scrubbing liquid per minute,is it adequate?

Reference no: EM13536725

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