Tóm tắt nội dung:   Membrane Separation 16.1 OVERVIEW Membrane separation has developed into an important technology for separating VOCs and other gaseous air pollutants from gas streams during the past 15 years. The first commercial application was installed in 1990, and more than 50 systems have been installed in the chemical process industry worldwide. 1 The technology utilizes a polymeric membrane that is more permeable to con-densable organic vapors, such as C 3+ hydrocarbons and aromatics, than it is to noncondensable...