Activation of Coconut Shell - Randu Wood Biochar and Its Use as Heterogeneous Catalyst Support for Biodiesel Production

1st International Symposium of Indonesian Chemical Engineering 2018

Pradana, Y.S.^1 ; Rochim, N.^1 ; Mukaffa, H.S.^1 ; Satriawan, H.B.^1 ; Hidayat, A.^2 ; Budiman, A.^1^3

Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika No. 2, Yogyakarta

55281, Indonesia^1

Chemical Engineering Department, Faculty of Industrial Technology, University of Islam Indonesia, Jalan Kaliurang KM 14 5, Yogyakarta

55584, Indonesia^2

Master Program of Systems Engineering, Universitas Gadjah Mada, Jalan Teknika Utara 3, Yogyakarta, Indonesia^3

关键词: Biodiesel production;    Carbon based catalysts;    Greenhouse gas release;    Heterogeneous catalyst;    Heterogeneous catalyst supports;    Homogeneous catalyst;    Total pore volume;    Transesterification reaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/543/1/012064/pdf
DOI  :  10.1088/1757-899X/543/1/012064

来源: IOP

【 摘 要 】

In the last decade, biodiesel has been considered as one of attractive biofuels in function of replacing fossil-based diesel fuel and concerning on reduction of greenhouse gas release. For biodiesel production, the use of heterogeneous catalyst is a challenge to minimize problems related to the use of homogeneous catalyst. One of potential heterogeneous catalyst is activated carbon-based catalyst. This study investigated the effect of activating agents (hydrochloric acid and sulfuric acid), its concentration (0.5, 1.0, 1.5 and 2.0 N) and activation time (1.5, 3.0, 4.5 and 6.0 h) on iodine number of activated biochar (from coconut shell and Randu wood). The results showed that the highest iodine number (749.14 mg/g) was obtained from coconut shell biochar activated by sulfuric acid at concentration of 2 N and activation time of 6 h. Moreover, BET analysis of the best activated biochar resulted 30.88 m2/gcat of surface area, 3.26 x 10-2 cm3/g of total pore volume and 2.11 nm of average pore radius. The performance test of this potassium-impregnated activated biochar in batch transesterification reaction (palm oil-methanol) presented 29.44 % of biodiesel conversion.