SELECTIVE REMOVAL OF H2S FROM PETROLEUM REFINERY GASES. II. A NEW DESULFURIZER BEHAVIOR OF DESORPTION AND THERMAL STABILITY.

Autor: Yang, Jingyi, Xu, Xinru, Li, Shaoping, Chen, Shaozhou
Předmět:
Zdroj: Petroleum Science & Technology; May2001, Vol. 19 Issue 5/6, p609, 14p
Abstrakt: Desulfurizer JPE-7, a sterically hindered amine, has higher selectivity and absorption capacities than MDEA. JPE-7 has fast and complete regenerability, which has constant and lower H2S content in the reduplicate tail gas. Thermal stability of JPE-7 is favorable for industrial operation condition. With the concentration of JPE-7 increasing, the absorption of CO2 rapidly increases, while that of H2S is reluctant to increase thus the selectivity and absorptivity is reluctant to increase. The optimum concentration of JPE-7 is range from 30 wt% to 40 wt%. The dimethyl yellow-methenyl blue method is recommended to determine the concentration of JPE-7 with reasonable accuracy. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index