Facile Surface Hydrophobic Modification of Rice Husk for Efficient Crude Oil Emulsion Separation.
Commercial demulsifiers are mainly polyethers derived from ethylene oxide and propylene oxide, with hazardous and complex production routes. Rice husk (RH), a renewable agricultural by-product with abundant cellulose, lignin and surface oxygen-containing groups, is a promising hydrophilic substrate for biomass demulsif...