Production and kinetic transesterification of biodiesel from yellow grease with dimethyl carbonate using methanesulfonic acid as a catalyst

Abstract

The production of biodiesel from yellow grease containing a low level of free fatty acids was investigated in this study. The kinetic transesterification of a molar ratio of (1:5) yellow grease to dimethyl carbonate was investigated. The experiments were conducted under various kinetic parameters, such as the use of a CH4O3S catalyst, and the effect of the reaction temperature (70°C), time (45 min) and stirring rate (125 rpm) were studied to determine the best possible kinetic conditions. A maximum yellow grease biodiesel yield of 94% was obtained. The properties of the biodiesel, such as the kinematic viscosity at 40°C, specific gravity at 25°C, flash point, pour point, cloud point, and copper strip corrosion level, were tested and found to conform to the biodiesel quality standards ASTM D6751 – 02. This research will provide a highly efficient, cost‐effective, eco‐friendly, and simplified process for one‐step biodiesel production from yellow grease. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 802–807, 2017

CaO/Natural Dolomite as a Heterogeneous Catalyst for Biodiesel Production

“…One way to lower the cost is by utilizing low-cost feedstock. Various materials have been exploited as cheap feedstocks for biodiesel production such as animal fats (mutton [19], tallow [20], and lard [21]), non-edible oils [22][23][24], yellow grease [25], etc. The use of non-edible oil for biodiesel raw materials has limitations in connection with the oil production efficiency in every cultivation area.…”

Highly Efficient Synthesis of Chlorogenic Acid Oleyl Alcohol Ester under Non-Catalytic and Solvent-Free Conditions

“…This reaction system is a solid-liquid heterogeneous system, and previous studies have reported that vigorous mixing was quite necessary to increase the contact area between two immiscible phases [39,40]. However, there was no significant difference in the CGA conversion with the increase in stirring rate, and the CGA conversion was approximately maintained at about 93-94% (Figure 4).…”

“…Thus, slight boiling was observed in the experiment, which could also promote the contact and reaction between molecules. Considering the mixing uniformity and energy saving, 200 rpm was selected as the optimal stirring rate, which was in accordance with Panchal et al [39].…”

Yellow and brown grease—characteristics of compression-ignition engine

“…Several studies were conducted on biodiesels obtained from various Yellow Greases. Panchal et al [86] studied the one-step process of producing biodiesel from yellow fat by kinetic transesterification of yellow grease with dimethyl carbonate in a molar ratio (1: 5), using a CH4O3S catalyst, reaction temperature equal to 708 C, time of 45 min, and mixing speed equal to 125 rpm. The maximum yield of biodiesel with yellow fat was achieved of 94%.…”