Hydrogen sulfide Removal by Fe-EDTA solution

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มินตาภา เผาธีระยุทธ์
อนุรักษ์ ปีติรักษ์สกุล


The aim of this research was to study hydrogen sulfide removal using Fe-EDTA solution by an absorption technique. The advantages of this method are low temperature operation, only hydrogen sulfide removal, and Fe-EDTA solution can be regenerated and sulfur precipitate can be got off easily. The initial concentration of hydrogen sulfide about 5,000 ppm was prepared by chemical reaction. The absorption with 0.2 mmol/L Fe-EDTA solution was investigated by varying hydrogen sulfide gas feed rate at 20, 30 and 40 mL/min at room temperature. The regenerations were performed with an air flowrate of 50 mL/min after the outlet gas from the absorption column monitored to 50 ppm H2S. The result showed that pH of Fe-EDTA solution at 9.5 was suitable for investigation of H2S removal. The kinetic reaction rate of hydrogen sulfide removal were 0.0143, 0.0334 and 0.0529 min-1 for the hydrogen sulfide feed rate of 20, 30 and 40 mL/min, respectively.



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เผาธีระยุทธ์ ม., & ปีติรักษ์สกุล อ. (2015). Hydrogen sulfide Removal by Fe-EDTA solution. Journal of Energy and Environment Technology of Graduate School Siam Technology College, 2(1), 8–16. Retrieved from https://ph01.tci-thaijo.org/index.php/JEET/article/view/182386
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