Open AccessCharacteristics of chromium based mixed oxide catalyst in biodiesel production
Author(s) -
Nur Alwani Ali Bashah,
A. Luin,
I. A. Jalaluddin,
I. A. Shahhaizad,
Normah Ismail,
Wan Zuraida Wan Kamis
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1349/1/012143
Subject(s) - catalysis , biodiesel , oxide , methanol , mixed oxide , transesterification , chemistry , chromium , nuclear chemistry , materials science , inorganic chemistry , organic chemistry
Renewable energy from biodiesel or fatty acid methyl ester (FAME) has become important in recent decades as one of the promising alternative for petroleum-derived fuel. In this study, chromium based mixed oxide catalysts which are Cr/Ca oxide and Cr/Zn oxide were synthesized via precipitation method and used in the transesterification of cooking palm oil to produce FAME. The reactions were conducted in a batch reactor at temperature of 60 °C, methanol:oil molar ratio of 6:1 and catalyst loading of 1wt%. The characterization through N 2 adsorption-desorption showed BET-surface area, pore volume and pore size of Cr/Ca oxide are 3.6915 m 2 /g, 0.00684 cm 3 /g and 93.919Å, respectively while for Cr/Zn oxide are 3.9897 m 2 /g, 0.00630 cm 3 /g and 80.113Å, respectively. Both catalysts showed similar type isotherm which are type IV and hysterisis loop H3. The catalyst Cr/Ca oxide is found to be more active in the transesterication whereby FAME content of 27.8% was achieved compared to 7.4% by utilizing Cr/Zn oxide. The results showed that Cr/Ca oxide catalyst and Cr/Zn oxide have potential as heterogeneous catalyst to produce FAME from palm oil.