A Causal Analysis on the Formation of By-products in Tannin Extract Desulfurization—Kinetics and Mechanism Research on HS − with Oxygen

作者：Yanxia Niu, Kaicheng Ling, Xiaomei Men, Jun Shen · 发表于：Energy Sources Part A Recovery Utilization and Environmental Effects · 年份：2010 · DOI：10.1080/15567031003699517 · 被引用次数：1 · 研究领域：Catalysis and Hydrodesulfurization Studies、Industrial Gas Emission Control

To investigate the formation reason of by-products in tannin extract desulfurization, the kinetics of the chemical oxidation of aqueous HS− solutions have been studied in a continuous bubbling reactor. The results show that the reaction rate increased as the initial concentration of HS− increased, and the air velocity accelerated, and reaction temperature rose. The rate equation is − = 1.13 exp(−25622.71/RT)CHS− . By theoretical analysis and experimental research, it is discovered that the oxidation products of HS− are mainly S2O3 2− and not sulfur. In addition, some suggestions were put forward to reduce by-products.