production process involves a phase of transesterification that yields glycerol as a by-product. The use of this glycerol is … have addressed identification of possible uses for unrefined glycerol. Given the diversity of uses, an overview is … necessary. The purpose of this work is to present alternatives currently being considered for the use of unrefined glycerol as a …

anaerobically digested microalgae residues was investigated. The co-digestion of the microalgae residues with glycerol as well as …

friendly and is obtained from renewable sources. Glycerol is the main by-product of biodiesel production; about 10% of the … weight of biodiesel is generated in glycerol. The large amount of glycerol generated may become an environmental problem … approaches and techniques used to produce glycerol (hydrolysis, transesterification, refining crude glycerol). The world …

Glycerol is a valuable byproduct in biodiesel production by transesterification, soap manufacturing by saponification … as well as hydrolysis reaction. The purity of glycerol obtained is low due to the presence of impurities such as … remaining catalyst, water, soaps, salts and esters formed during the reaction. Purification of glycerol as well as the …

Enterobacter aerogenes have a known ability to convert glycerol (GL) in a fermentative process to yield hydrogen and … determined using pure glycerol (commercial grade glycerol), were successfully applied to the fermentation of crude glycerol from … biodiesel production. The results indicated promising yields of 0.79 and 0.84 mol/mol of glycerol for bioethanol and biohydrogen …

recent reports on increase in the glycerol generation during the biodiesel production has created a need to convert large … quantities of glycerol into value-added products. In the present investigation, twenty anaerobic bacteria were screened for … that the strain was able to utilize glycerol as a sole carbon source to produce 1.4 g/L of butanol in 96 h. Optimization of …

. Ethanol fermentation using glycerol as carbon source was carried out by local isolate, ethanologenic bacterium Escherichia … coli SS1 in a close system. Factors affecting bioethanol production from pure glycerol were optimized via response surface … fermentation in a 2 L bioreactor was performed at the glycerol concentration of 20 g/L, 35 g/L and 45 g/L, respectively. The …

The production of biofuel has increased considerably over the last years. Glycerol, a by-product of biodiesel synthesis …, accounts for 10wt% of the total product and has a limited range of applications. Etherification reaction of glycerol with light … attractive solution (i) to address the excess of glycerol, and (ii) to increase the diesel volume using light olefins, obtaining …

An overall heat-integrated process of SCW (supercritical water) reforming of glycerol for methanation of the syngas … CO2. The SCW reforming is performed at 240 bars. Reforming temperatures from 700 °C to 900 °C and glycerol feed … a reforming temperature of 800 °C and a glycerol concentration of 33 wt.% to obtain 0.166 kg CH4/kg glycerol, 0.433 kWe …

In this paper, we optimize a process that integrates the use of glycerol to produce ethanol via fermentation within the … glycerol. The advantage of this process is that the dehydration technologies are common for the products of the glucose and … glycerol fermentation. Simultaneous optimization and heat integration is performed using Duran and Grossmann’s model. The …