VATIS UPDATE Article

Scientists from Monash University, Australia, have scientists have developed a new method to produce via compression pellets from amine type composites without additional binder. Highly selective “molecular basket” sorbents and water tolerant, the pellets demonstrate a high capacity for carbon dioxide (CO2) capture, which is similar to the promising commercially developed powder forms. The pellets can be used for post combustion capture of CO2 from flue gas streams, in conjunction with industrial gas separation process technologies, such as pressure swing adsorption (PSA), and temperature swing adsorption (TSA). The method can also be adapted for gas adsorption pellet production in the pharmaceuticals or agrochemicals sectors and the food industry. The invention relates to a method to produce a pelletized form of a porous support material for gas separation applications. More specifically, the invention demonstrates a new process to compress mesocellular siliceous foam (MCF) loaded with Polyethyleneimine (PEI) as a solid sorbent for CO2 capture. This pelletization technique doesn’t use any binder and, CO2 capture relies on the well-known technical sorbent capacity and features of the composites. The proof of concept has been demonstrated by the researchers.