Rice husk ash as an adsorbent for purifying biodiesel from waste frying oil
作者： Márcia Cardoso Manique , Candice Schmitt Faccini , Bruna Onorevoli , Edilson Valmir Benvenutti , Elina Bastos Caramão
DOI: 10.1016/J.FUEL.2011.07.024
关键词: Adsorption 、 Pulp and paper industry 、 High capacity 、 Aqueous solution 、 Chemistry 、 High concentration 、 Composition (visual arts) 、 Purification methods 、 Husk 、 Biodiesel
摘要: Abstract The goal of this work is to study the purification biodiesel from waste frying oil (WFO) using rice husk ash (RHA) at concentrations 1%, 2%, 3%, 4% and 5% (w/w) compare it with two other different methods, traditional acid solution (1% aqueous H3PO4) commercial adsorbent Magnesol® 1% (w/w). structure composition RHA were studied better understand its properties as an adsorbent. In a concentration 4%, showed excellent results for removal impurities biodiesel. high silica in presence meso macropores can explain capacity adsorption. Thus, RHA, that byproduct processing, appear alternative material purification.
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