TY - JOUR AB - Carbonaceous material containing sulfonate groups as solid acid catalyst was generated by one-step mild hydrothermal carbonization of glucose. The process took place in the presence of hydroxyethylsulfonic acid at 180 degrees C for 4 h. The obtained sulfonated carbon (C-SO3H) was microsphere with diameter size of 50-100 micrometer. The sulfonate groups were further attached on the surface of the carbonaceous materials. The catalytic esterification of waste cooking oil (WCO) with methanol could be easily achieved by using C-SO3H. Free fatty acids (FFAs) in WCO could be decreased up to 93.4% at 60 degrees C for 3 h. The biodiesel yield was achieved about 87% within 1 h at 60 degrees C by transesterification using 1% NaOH (w/w) as catalyst. The C-SO3H was demonstrated to have good stability with only 7% decrease in FFAs conversion after 5 repeat uses. The sulfonated carbon-based solid acid catalyst was thus designed to be an active, stable and reusable solid acid as an environmentally benign replacement for homogeneous catalyst. AD - Lambung Mangkurat Univ, Fac Engn, Dept Chem Engn, Jl Yani Km 36, Banjarbaru 70714, South Kalimanta, Indonesia AN - WOS:000405370200010 AU - Nata, I. F. AU - Putra, M. D. AU - Irawan, C. AU - Lee, C. K. DA - Jun DO - 10.1016/j.jece.2017.04.029 IS - 3 J2 - J Environ Chem Eng KW - carbonaceous material LA - English N1 - Fa3up PY - 2017 SN - 2213-3437 SP - 2171-2175 ST - Catalytic performance of sulfonated carbon-based solid acid catalyst on esterification of waste cooking oil for biodiesel production T2 - Journal of Environmental Chemical Engineering TI - Catalytic performance of sulfonated carbon-based solid acid catalyst on esterification of waste cooking oil for biodiesel production UR - ://WOS:000405370200010 VL - 5 ID - 13959 ER -