The Research of Sulfur Dioxide Absorption in Pharmaceutical Waste Gas by Renewable Absorber

Abstract:

The effects of the absorption of sulfur dioxide with phosphoric acid/ triethanolamine were researched through the absorption experimental equipment. From the experiment, we found the effects of absorption and recycling of absorber was better when the pH of Absorber was 7, at the same time, the absorption selectivity of SO2 was 95% with the existence of CO2. Other reaction conditions were also researched, the optimal absorption temperature was 40 °C and the optimal regeneration temperature is 110°C , and the optimal concentration of triethanolamine was 1.5 mol.L-1. The concentration of SO2 in the purified gas was lower than 100 mg.m-3.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 1311-1315
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.1311
• Online since: February 2013
• Authors: Wei Yang Shen, Chen Yi Hu, Jian Qiu Chen, Rui Xin Guo*
• Keywords: Absorber, Pharmaceutical Waste Gas, Regeneration, Sulfur Dioxide

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