LO-CAT Treats Sour Gas Containing Up To 500 Ppm H2S At Los Angeles Wastewater Treatment Plant
At the Hyperion wastewater treatment plant in Los Angeles, digester gas H2S concentration had to be controlled so that SOx emissions from the on-site digester gas combustion could be kept within regulatory limits. With emissions under control, gas could be burned to generate steam for heat or electricity or sold to local utilities. This plant treats nearly 420 MGD, generating over 475 tons of raw sludge per day. To eliminate the problems arising from plugging of the packed columns in the original Stretford unit, the unit was converted to a LO-CAT unit with mobile bed absorbers. This retrofitted plant exceeds all requirements and produces a treated gas with a H2S content significantly below the required outlet level.
In the LO-CAT process, H2S in the process gas is converted to innocuous, solid elemental sulfur by the use of an environmentally safe chelated iron catalyst. In the Hyperion plant, the LO-CAT unit treats the sour gas containing up to 500 ppm H2S, discharging a treated gas at or below 40 ppm H2S.
1501 E. Woodfield Rd., Suite 200W
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United States
Phone: 847-706-6900
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