Separation of methane from higher carbon number hydrocarbons...

B - Operations – Transporting – 01 – D

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B01D 53/02 (2006.01) B01D 53/22 (2006.01) B01D 71/00 (2006.01) B01J 20/00 (2006.01) C01B 39/00 (2006.01)

Patent

CA 2716322

The present invention relates to the selective separation of methane ('CH4') from higher carbon number hydrocarb-ons ('HHCs) in streams containing both methane and higher carbon number hydrocarbons (e.g. ethylene, ethane, propylene, propane, etc.) 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 methane from higher carbon number hydrocarbons in natural gas streams.

La présente invention se rapporte à la séparation sélective du méthane (« CH4 ») dhydrocarbures ayant un nombre de carbones supérieur ('HHC) dans des flux qui contiennent du méthane et des hydrocarbures ayant un nombre de carbones supérieur (par exemple léthylène, léthane, le propylène, le propane, etc.) à l'aide d'un matériau à structure d'imidazolate zéolitique (« ZIF »). De préférence, le flux à séparer est fourni pour le présent traitement dans une phase sensiblement gazeuse. Dans des modes de réalisation préférés, la présente invention est utilisée dans un traitement destiné à séparer le méthane dhydrocarbures ayant un nombre de carbones supérieur dans des flux gazeux naturels.

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