Enhancing Natural Gas Purification With Advanced Polymer/Molecular Sieve Composite Membranes

Membranes have been of continuing interest to the petroleum<br>and chemical industries for gas separations. While glassy,<br>polymeric membranes have provided efficient performance to<br>date, significant improvements over current membrane<br>technology will likely require novel materials. This paper will<br>review the development and status of a new technology based<br>on composite membranes, termed mixed matrix membranes,<br>of polymer matrices in which molecular sieves are dispersed<br>to give enhanced separation of natural gas from its impurities<br>compared to membranes of the polymer alone.