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Eco-friendly sonoluminescent determination of free glycerol in biodiesel samples.
(Elsevier, 2013-04)
This paper proposes a flow-batch methodology for the determination of free glycerol in biodiesel that is notably eco-friendly, since non-chemical reagents are used. Deionized water (the solvent) was used alone for glycerol ...
Determination of free and total glycerol in biodiesel by spot analysis
(Elsevier Science, 2020-11)
The importance of alternative fuel production has increased in the lately years, and so has the need of methods of analysis to evaluate their quality. Biodiesel fuel is a valuable substitute to petrodiesel fuel. Among the ...
Emitter/receiver piezoelectric films coupled to flow-batch analyzer for acoustic determination of free glycerol in biodiesel without chemicals/external pretreatment
(Elsevier Science, 2018-05)
This paper describes for the first time the use of emitter and receiver piezoelectric films coupled one in front of the other into a flow-batch analyzer for acoustic determination of free glycerol in biodiesel without ...
Sodium salts solubility in ternary glycerol+water+alcohol mixtures present in purification process of crude glycerol from the biodiesel industry
(Elsevier Science, 2019-10-01)
In this work sodium salts solubility data were obtained for relevant systems involved in crude glycerol purification processes. Several binary and ternary mixtures of glycerol + water and glycerol + water + alcohol were ...
A combined experimental and computational study of the esterification reaction of glycerol with acetic acid
(Springer Heidelberg, 2014-03)
This work describes theoretical and experimental studies on glycerol esterification to obtain acetins focusing on the obtained isomers. The reaction of glycerol with acetic acid was carried out on Amberlyst 36 wet. Density ...
Dihydroxyacetone production via heterogeneous biotransformations of crude glycerol
(Elsevier Science, 2021-11)
In this work, several immobilization strategies for Gluconobacter oxydans NBRC 14819 (Gox) were tested in the bioconversion of crude glycerol to dihydroxyacetone (DHA). Agar, agarose and polyacrylamide were evaluated as ...
Automatized flow-batch method for fluorescent determination of free glycerol in biodiesel samples using on-line extraction
(Elsevier Science, 2012-01)
An automatic method, based on flow-batch (FB), for determining glycerol in biodiesel was developed. The FB systems draw upon the useful features of flow, batch and multi-commutation approaches. The standards and samples ...
Flow injection analysis of free glycerol in biodiesel using a copper electrode as an amperometric detector
(ELSEVIER SCI LTDOXFORD, 2012)
The main goal of this work was to develop a simple analytical method for quantification of glycerol based on the electrocatalytic oxidation of glycerol on the copper surface adapted in a flow injection system. Under optimal ...
Effect of operating variables and kinetics of the lipase catalyzed transesterification of ethylene carbonate and glycerol
(MDPI AG, 2018-09-05)
Glycerol carbonate (GC) is a value-added product originating from the valorization of widely available glycerol (Gly), a side stream from the production of biodiesel. Here we approach the production of this chemical comparing ...