TY - JOUR AB - Catalyst selection for transesterification of oil to biodiesel depends on composition of oil and its source. Algal biomass is a cheaper and effective source for this purpose. Chlorella vulgaris, Rhizoclonium hieroglyphicum and mixed algae culture (Microspora sp., Navicula sp., Lyngbya sp., Cladophora sp., Spirogyra sp and Rhizoclonium sp.) were selected for current study. Several variables such as solvent types (acetone, hexane and methanol), extraction time (60-300min), molar ration (1:1, 3:1 and 6:1), catalyst types (Na, NaOH, KOH and H2SO4), catalyst concentration (0.5, 1.0 and 1.5%) and transesterification reaction time (20-100 min) were used for extraction of oil and biodiesel production. Highest quantity of oil was extracted using hexane as a solvent while highest biodiesel yield (93.93%) was obtained from transesterification of Chlorella vulgaris oil under 3;1 alcohol to oil molar ration, Na catalyst (1%) and 1 h of reaction time. The work investigated that biodiesel properties are comparable to ASTM standards hence it can be used as vehicular fuel. AD - Ahmad, F AN - WOS:000317246400117 AU - Ahmad, F. AU - Khan, A. U. AU - Yasar, A. DA - Jul IS - 8 J2 - Asian J Chem KW - algae LA - English N1 - B PY - 2013 SN - 0970-7077 SP - 4624-4628 ST - Effect of Various Catalysts on Biodiesel Production from Biomass of Freshwater Algae T2 - Asian Journal of Chemistry TI - Effect of Various Catalysts on Biodiesel Production from Biomass of Freshwater Algae UR - ://WOS:000317246400117 VL - 25 ID - 8389 ER -