[1] Malaysian Palm Oil Board, Biomass Technol Unit, Engn & Proc Div, 6 Persiaran Inst, Kajang 43000, Selangor, Malaysia
[2] Malaysian Palm Oil Board, Energy & Environm Unit, Engn & Proc Div, 6 Persiaran Inst, Kajang 43000, Selangor, Malaysia
[3] Univ Putra Malaysia, Fac Sci, Catalysis Sci & Technol Res Ctr, Serdang 43400, Selangor, Malaysia
[4] Univ Putra Malaysia, Fac Sci, Dept Chem, Serdang 43400, Selangor, Malaysia
[5] Univ Kebangsaan Malaysia, Fac Sci & Technol, Dept Chem Sci, Bangi 43600, Selangor Darul, Malaysia
[6] Univ Putra Malaysia, Fac Biotechnol & Biomol Sci, Dept Bioproc Technol, Serdang 43400, Selangor, Malaysia
[7] Univ Newcastle, Fac Engn & Built Environm, Prior Res Ctr Energy, Callaghan, NSW 2308, Australia
[8] Univ Teknol MARA, Fac Appl Sci, Sch Chem & Environm, Shah Alam 40450, Selangor, Malaysia
[9] Univ Teknol MARA, Ctr Funct Mat & Nanotechnol, Inst Sci, Shah Alam 40450, Selangor, Malaysia
[10] King Saud Univ, Chem Dept, Sci Coll, POB 2455, Riyadh 11451, Saudi Arabia
[11] Univ Malaysia Sabah, Fac Sci & Nat Resources, Kota Kinabalu 88400, Sabah, Malaysia