| abstract |
The present invention relates to the selective separation of carbon dioxide ('CO 2 ') from methane ('CH 4 ') in streams containing both carbon dioxide and methane utilizing a zeolitic imidazolate framework ('ZIF') material. Preferably, the stream to be separated is fed to the present process in a substantially gaseous phase. In preferred embodiments, the current invention is utilized in a process to separate carbon dioxide from natural gas streams preferably for sequestration of at least a portion of the carbon dioxide present in the natural gas. |