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

作者：Niu, Y. X.^*; Ling, K. C.; Men, X. Q.; Shen, J.

来源：Energy Sources, Part A: Recovery, Utilization, and Environmental Effects , 2011, 33(1): 1-11.

DOI：10.1080/15567031003699517

• by-products
• gas purification
• kinetics
• sodium hydrosulphide
• tannin extract desulfurization

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 - dc/dt = 1.13 exp(25622.71/RT)C-HS-. By theoretical analysis and experimental research, it is discovered that the oxidation products of HS- are mainly S2O32- and not sulfur. In addition, some suggestions were put forward to reduce by-products.

• 出版日期2011
• 单位太原理工大学