%X The objective of this study is to extract and characterize lignin from oil palm biomass (OPB) by dissolution in 1-butyl-3-methylimidazolium chloride (bmimCl), followed by the lignin extraction through the CO2 gas purging prior to addition of aluminum potassium sulfate dodecahydrate (AlK(SO4)2·12H2O). The lignin yield, YL (%wt.) was found to be dependent of the types of OPB observed for all precipitation methods used. The lignin recovery, RL (%wt.) obtained from CO2-AlK(SO4)2·12H2O precipitation was, however dependent on the types of OPB, which contradicted to that of the acidified H2SO4 and HCl solutions of pH 0.7 and 2 precipitations. Only about 54% of lignin was recovered from the OPB. The FTIR results indicate that the monodispersed lignin was successfully extracted from the OPT, OPF and OPEFB having a molecular weight (MW) of 1331, 1263 and 1473g/mol, and degradation temperature of 215, 207.5 and 272°C, respectively. © 2015 Elsevier Ltd.
%V 192
%L scholars5781
%D 2015
%J Bioresource Technology
%T Extraction and characterization of lignin from oil palm biomass via ionic liquid dissolution and non-toxic aluminium potassium sulfate dodecahydrate precipitation processes
%A S.S. Mohtar
%A T.N.Z. Tengku Malim Busu
%A A.M. Md Noor
%A N. Shaari
%A N.A. Yusoff
%A M.A. Bustam Khalil
%A M.I. Abdul Mutalib
%A H.B. Mat
%R 10.1016/j.biortech.2015.05.029
%K Aluminum; Aluminum chloride; Biomass; Chlorine compounds; Dissolution; Extraction; Ionic liquids; Palm oil; Potassium; Precipitation (chemical), 1-Butyl-3-methylimidazolium chloride; Aluminum potassium sulfate dodecahydrate; Degradation temperatures; Ionic liquid dissolutions; Lignin extractions; Oil palm biomass; Precipitation methods; Precipitation process, Lignin, 1 butyl 3 methylimidazolium chloride; aluminum potassium sulfate; aluminum potassium sulfate dodecahydrate; hydrochloric acid; hydrogen peroxide; ionic liquid; lignin; unclassified drug; 1-butyl-3-methylimidazolium chloride; aluminum potassium sulfate; aluminum sulfate; carbon dioxide; imidazole derivative; ion; ionic liquid; lignin; palm oil; solution and solubility; vegetable oil, aluminum; biomass; dissolution; lignin; pH; precipitation (chemistry), Article; biomass; degradation; dissolution; Elaeis; extraction; molecular weight; nonhuman; oil palm biomass; pH; precipitation; priority journal; temperature; biomass; chemistry; solubility; solution and solubility, Elaeis, Alum Compounds; Biomass; Carbon Dioxide; Chemical Precipitation; Hydrogen-Ion Concentration; Imidazoles; Ionic Liquids; Ions; Lignin; Plant Oils; Solubility; Solutions
%I Elsevier Ltd
%P 212-218
%O cited By 73