Surface Selective Membranes for Carbon Dioxide Separation

摘要

Membranes, though relative newcomers to the world of gas separations, have gained acceptance in the only currently practiced operation comparable to the large scale carbon dioxide removal from flue or fuel gas, natural gas sweetening. Several factors have helped to speed the adoption of new membrane technologies by the natural gas industry. The one most often discussed is the relative ease of installation and maintenance of prefabricated membrane sleds which make them nearly universally preferred in remote locations. Additionally, membrane gas sweetening leaves the product stream at high pressure, is more environmentally benign than traditional methods, and occupies a smaller footprint in the plant.