Studies on Sono-Chemical Biodiesel Production Using Smoke Deposited Nano MgO Catalyst

Abstract

The comprehensive study of smoke deposited nano-sized MgO as a catalyst for biodiesel production was investigated. The transesterification reaction was studied under constant ultrasonic mixing for different parameters like catalyst quantity, methanol oil molar ratio, reaction temperature and reaction time. An excellent result of conversion was obtained at 1.5 wt% catalyst; 5:1 methanol oil molar ratio at 55 °C, a conversion of 98.7% was achieved after 45 min. The conversion was three to five times higher than those are reported for laboratory MgO in literature. This was mainly due to the enhancement of surface area of the catalyst and the activity of ultrasonic waves. Catalyst is easily recovered and reused up to eight times with easy regeneration steps.

Effect of nanocatalysts on the transesterification reaction of first, second and third generation biodiesel sources- A mini-review

“…The utilization of nanocatalysts in the catalytic transesterification process offers some advantages over other catalysts (Wen et al 2010, Chaturvedi et al 2012, Sivakumar et al 2013, Sharma et al 2015, Hashmi et al 2016. Despite many advantages, nanocatalysts have some issues in responding to the transesterification process (Ajala et al 2020).…”

Highly Active MgP Catalyst for Biodiesel Production and Polyethylene Terephthalate Depolymerization

“…[10,11] From these groups of metal oxides, magnesium oxide has attracted the attention of the scientific community, due to its considerable basicity, stability, and not dissolution in the reaction medium. [12,13] It is known that magnesium oxide produced by direct heating of magnesium carbonate or magnesium hydroxides has low surface area, resulting in an ineffective catalyst for the transesterification reaction, for example, MgO with 0.45 m 2 /g specific surface area only produces 18 % of biodiesel under optimal conditions. [14] Thus, better methods of MgO production are needed.…”

“…For the biodiesel production some heterogeneous catalysts have been tested, [7–9] and the alkaline metal oxides like BaO, CaO, MgO, and SrO have proven to be efficient due to their basicity, low activation temperature, and shorter reaction times [10,11] . From these groups of metal oxides, magnesium oxide has attracted the attention of the scientific community, due to its considerable basicity, stability, and not dissolution in the reaction medium [12,13] …”