Fundamental Studies of Acid Gas Treating by Aqueous Alkanolamines. Vapor-LiquidEquilibrium Studies. Final Report, March 1992-March 1995

摘要

Facing the tightened environmental regulations and a pressing need to increasethe operation efficiency, the gas processing industry has been striving to improve the design/performance of gas sweetening units. However, one major hurdle hampering such an endeavor is the incomplete and unsatisfactory database in the literature. To effectively address this hurdle, this project was to provide critical solubility data of acid gases in alkanolamine solutions to support downstream development requirements. The experimental program has been completed successfully. A semi-flow apparatus, designed to eliminate sample handling difficulties commonly encountered in the measurements, was proven reliable and, subsequently used in the measurements of low-pinch data. In summary, a total of 21 systems containing approximately 500 conditions have been acquired. The literature data for system containing H2S, particularly in the low-pinch regime, were believed to show symptoms resulting from sample losses in their analyses.