摘要:
A membrane suitable for separating a gas, in particular carbon dioxide, from a gas mixture containing the gas is provided by a blend of polyvinyl alcohol (PVA) and polyvinylamine (PVAm).
摘要:
A process for separating at least one gas (e.g. at least one of CO2, H2S and/or NH3) from a mixed gaseous feed stream, said process comprising (i) Passing said mixed gaseous feed stream through a first membrane contactor comprising a first membrane and a liquid absorbent at a first pressure, such that the liquid absorbent absorbs the at least one gas from the mixed gaseous feed stream to form a rich liquid absorbent; (ii) Feeding said rich liquid absorbent to a second membrane contactor comprising a second membrane at a second pressure; (iii) Desorbing said at least one gas (e.g. at least one of CO2, H2S and/or NH3) from the rich liquid absorbent in the second membrane contactor; and (vi) Recirculating all or at least a part of the liquid absorbent from the second membrane contactor back to the first membrane.
摘要:
An apparatus for emitting polarized light and a method for fabricating such apparatus are provided. The apparatus includes a surface emission light emitting diode (LED), a first electrode, and a sub-wavelength metal grating (SWMG). The surface emission LED includes a first contact surface and a second contact surface. The first electrode is coupled to the first contact surface. The SWMG is formed on a surface of the surface emission LED.
摘要:
A membrane suitable for separating a gas, in particular carbon dioxide, from a gas mixture containing the gas is provided by a blend of polyvinyl alcohol (PVA) and polyvinylamine (PVAm).