Synthesis of K2O/Zeolite catalysts by KOH impregnation for biodiesel production from waste frying oil

3rd International Conference on Chemical Engineering Sciences and Applications 2017

Fitriana, N.^1 ; Husin, H.^1,2 ; Yanti, D.^1 ; Pontas, K.^1,2 ; Alam, P.N.^2 ; Ridho, M.^2 ; Iskandar, I.^2

Graduate Program in Chemical Engineering, Syiah Kuala University, Darussalam, Banda Aceh

23111, Indonesia^1

Department of Chemical Engineering, Syiah Kuala University, Darussalam, Banda Aceh

23111, Indonesia^2

关键词: Biodiesel production;    Catalyst-to-oil ratios;    Catalytic stability;    Impregnated catalysts;    Independent variables;    Natural zeolites;    Waste frying oil;    X ray diffractometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/334/1/012011/pdf
DOI  :  10.1088/1757-899X/334/1/012011

来源: IOP

【 摘 要 】

K2O/Zeolite compounds were successfully synthesized using KOH as starting material and natural zeolite as support. The catalysts were calcined at 500°C for 3 h and then characterized by X-Ray Diffractometer (XRD) and Scanning Electron Microscopy (SEM). The SEM images reveal that the zeolite and K2O/zeolite particles are irregular in shape (100 to 400 nm). The independent variables were impregnated amounts of KOH (15 - 25%), catalyst to oil ratios of 1.0 - 6.0 wt.%, and reaction time of 2 h. The highest biodiesel yield of 95% was produced from the reaction with 2.1 wt.% catalyst of 25% KOH impregnated. The properties of produced biodiesel complied with SNI. The catalytic stability test showed that the 25% KOH impregnated catalyst was stable.