Patent ID: 8226893
Filing Date: 2012-07-24
Classification: B01D,C01B,G05D,Y10T

Abstract:
1. A multistage scrubber comprising: an inlet operable to receive and meter a fluid feed stream comprising hydrogen sulfide (H a first scrubbing stage coupled to the inlet operable to receive the fluid feed stream comprising H at least one additional scrubbing stage operable to further process the fluid feed stream comprising H a scrubbing solution distribution system coupled to the first scrubbing stage and the at least one additional scrubbing stage, the scrubbing solution distribution system operable to meter alkaline solutions within the scrubber based on: the chemical composition and concentration of the alkaline solutions, and the chemical composition and concentration of H an outlet operable to meter and output a substantially H a process monitor system operable to monitor physical parameters, fluid chemical compositions and flow rates, and alkaline solution chemical compositions and flow rates at a plurality of points within the multistage scrubber; and a control system coupled to the process monitor system operable to control fluid flows, alkaline solution flows and physical parameters within the multistage scrubber based on the monitor physical parameters, fluid chemical compositions and flow rates, and alkaline solution chemical compositions.