Abstract
Crude glycerol, the by-product from biodiesel production process, increased drastically as rapid growth of biodiesel industry. This by-product contains many impurities such as water, soaps, free fatty acids, esters etc. This paper presents a process development based on molecular distillation or short path evaporation, for glycerol purification up to 99%. Several experiments and theoretical analysis have been carried out to identify the effect of important parameters (mean free path, Knudsen number, evaporation rate, feed flow rate and evaporation temperature) which determine the performance of the molecular distillation process. The purified glycerol is collected in the distillate while the residue is enriched in higher molar mass components. High performance liquid chromatography (HPLC) was employed to determine the purity of glycerol.
| Original language | English |
|---|---|
| Pages (from-to) | 157-164 |
| Number of pages | 8 |
| Journal | Studia Universitatis Babes-Bolyai Chemia |
| Volume | 60 |
| Issue number | 4 |
| Publication status | Published - Jan 1 2015 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
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Purification of crude glycerol by short path evaporation. Theoretical and practical analysis of process parameters. / Trifoi, Ancuţa Roxana; Crucean, Augustin; Stănuleţ, Lucica; Blăjan, Olimpiu; Agachi, Paul Şerban.
In: Studia Universitatis Babes-Bolyai Chemia, Vol. 60, No. 4, 01.01.2015, p. 157-164.Research output: Contribution to journal › Article
TY - JOUR
T1 - Purification of crude glycerol by short path evaporation. Theoretical and practical analysis of process parameters
AU - Trifoi, Ancuţa Roxana
AU - Crucean, Augustin
AU - Stănuleţ, Lucica
AU - Blăjan, Olimpiu
AU - Agachi, Paul Şerban
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Crude glycerol, the by-product from biodiesel production process, increased drastically as rapid growth of biodiesel industry. This by-product contains many impurities such as water, soaps, free fatty acids, esters etc. This paper presents a process development based on molecular distillation or short path evaporation, for glycerol purification up to 99%. Several experiments and theoretical analysis have been carried out to identify the effect of important parameters (mean free path, Knudsen number, evaporation rate, feed flow rate and evaporation temperature) which determine the performance of the molecular distillation process. The purified glycerol is collected in the distillate while the residue is enriched in higher molar mass components. High performance liquid chromatography (HPLC) was employed to determine the purity of glycerol.
AB - Crude glycerol, the by-product from biodiesel production process, increased drastically as rapid growth of biodiesel industry. This by-product contains many impurities such as water, soaps, free fatty acids, esters etc. This paper presents a process development based on molecular distillation or short path evaporation, for glycerol purification up to 99%. Several experiments and theoretical analysis have been carried out to identify the effect of important parameters (mean free path, Knudsen number, evaporation rate, feed flow rate and evaporation temperature) which determine the performance of the molecular distillation process. The purified glycerol is collected in the distillate while the residue is enriched in higher molar mass components. High performance liquid chromatography (HPLC) was employed to determine the purity of glycerol.
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M3 - Article
VL - 60
SP - 157
EP - 164
JO - Studia Universitatis Babes-Bolyai Chemia
JF - Studia Universitatis Babes-Bolyai Chemia
SN - 1224-7154
IS - 4
ER -