Liquid redox desulfurization by Takahax Process where absorption and redox reaction take place simultaneously in a packed column has been studied in alaboratory apparatus and a commercial plant. The experimental results by the laboratory apparatus indicated that the redox reaction has a large influence in the desulfurization efficiency. It was also shown that the waste gas containing 1.4% H2S at 1, 100 Nm3/hr flow rate was desulfurized completely in the commercial plant.
This process consists of nothing more than a packed column, a filter press and a solution pump.Consequently, this process is more economical for desulfurization of waste gas, Claus tail gas and waste fermentation gas.
