Nanomembranes Find Way in Oil, Gas, Petrochemical Industries.
According to the Iran Nanotechnology Initiative Council (INIC), the separation of solutions usually takes place at room temperatures when they are performed using membrane technology.This would let the separation of the solutions, sensitive to temperature occur without any chemical changes/decompositions. Obviously this is a blessing for pharmaceutical and biological industries where products' quality can easily be affected by temperature changes.Morteza Sadeghi is the researcher who applied silica nanoparticles to improve the performance of membranes. In this method, first silica nanoparticles are prepared through hydrolysis of tetraethoxysilane (TEOS) method under a controlled ethanol atmosphere in the presence of hydrochloric acid as catalyst via the sol-gel. Then, to synthesize silica/polymer hybrid membranes, polymer solution is added to silica nanoparticles at specific weight ratios and properly mixed. This uniform solution is now ready for die casting. Once the polymer solution is casted on glass, i.e. film formation, thermal treatments are performed to remove the solvent and promote membrane properties.The thickness of the prepared hybrid polybenzimidazole (PBI)/silica membranes is about 40 micrones.Regarding the emerging markets for membrane gas separations all around the world and especially its extended markets in Iran, demands from oil, gas and petrochemical industries, enhancement of these membranes with the help of nanotechnology is among the hottest research topics."We have aimed to mass-produce and commercialize polymer nanomembranes since our research company, Parsian Pouya Polymer, was established," Sadeqi, a lecturer at Isfahan University of Technology told INIC.
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|Publication:||FARS News Agency|
|Date:||Sep 22, 2009|
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