Storage of Volatiles in the Mantle Lithosphere: Time-scales, sources and processes. Fragments of the Earth's mantle (xenoliths), transported to surface by deep-seated volcanics, record the injection of fluids through formation of volatile-bearing minerals (mantle metasomatism). This project will 1) test the hypothesis that timescales of mantle volatile storage can be determined using noble gas (laser probe) dating techniques, and 2) determine the sources and processes involved in volatile stor ....Storage of Volatiles in the Mantle Lithosphere: Time-scales, sources and processes. Fragments of the Earth's mantle (xenoliths), transported to surface by deep-seated volcanics, record the injection of fluids through formation of volatile-bearing minerals (mantle metasomatism). This project will 1) test the hypothesis that timescales of mantle volatile storage can be determined using noble gas (laser probe) dating techniques, and 2) determine the sources and processes involved in volatile storage, using halogen and noble gas geochemistry. A successful outcome will establish unique methods for dating mantle metasomatic events and determine the relationship between mantle and crust melting episodes, thus providing critical constraints on mantle evolution and Earth degassing models. Read moreRead less
Preparing Carbon Molecular Sieve Membrane (CMSM) for Olefin/Paraffin Separation. Carbon molecular sieve membrane (CMSM) presents superior selectivity and stability for many gas separation processes. This technology is energy saving, environmental friendly and with minimal operating cost. The project will develop CMSMs for the separation of olefin/paraffin, particularly, the propane/propylene mixture which is currently separated by the energy intensive cryogenic distillation in industry. The pro ....Preparing Carbon Molecular Sieve Membrane (CMSM) for Olefin/Paraffin Separation. Carbon molecular sieve membrane (CMSM) presents superior selectivity and stability for many gas separation processes. This technology is energy saving, environmental friendly and with minimal operating cost. The project will develop CMSMs for the separation of olefin/paraffin, particularly, the propane/propylene mixture which is currently separated by the energy intensive cryogenic distillation in industry. The project involves both experimental works and theoretical studies and will provide: (1) techniques for preparing CMSMs for olefin/paraffin separation; (2) methods characterizing the micro-structure of CMSMs; (3) mathematical models predicting multicomponent gas permeation/separation properties on CMSMs; (4) effect of impurities on the separation processes. Read moreRead less