Viable Glycerol Carbonate Synthesis Through Direct Crude Glycerol Utilization from Biodiesel Industry

2016 ◽  
Vol 8 (4) ◽  
pp. 1049-1059 ◽  
Author(s):  
Vidhyaa Paroo Indran ◽  
Anisah Sajidah Haji Saud ◽  
Gaanty Pragas Maniam ◽  
Yun Hin Taufiq-Yap ◽  
Mohd Hasbi Ab. Rahim
Keyword(s):  
Crude Glycerol ◽  
Glycerol Carbonate ◽  
Glycerol Utilization ◽  
Biodiesel Industry

scholarly journals Digestible energy of crude glycerol for pacu and silver catfish

2014 ◽  
Vol 44 (8) ◽  
pp. 1448-1451 ◽  
Author(s):  
Rafael Ernesto Balen ◽  
Patrick Nereu Tetu ◽  
Robie Allan Bombardelli ◽  
Paulo Cesar Pozza ◽  
Fábio Meurer
Keyword(s):  
Fish Species ◽  
Crude Glycerol ◽  
Energy Content ◽  
Biodiesel Production ◽  
Native Fish ◽  
Neotropical Fish ◽  
Digestible Energy ◽  
Silver Catfish ◽  
Glycerol Utilization ◽  
Good Potential

The increase in global biodiesel production is originating a glycerol surplus, which has no defined destination. An alternative to overcome this problem is its use as energy source in animal feeding. In Brazil, Pacu (Piaractus mesopotamicus) is one of the most farmed native fish species, whereas Silver catfish (Rhamdia quelen) is suitable for production in subtropical region. Considering little knowledge about crude glycerol utilization in feeds for Neotropical fish species, it was evaluated the apparent digestibility coefficients (ADCs) for energy of crude glycerol for P. mesopotamicus and R. quelen. The digestibility and digestible energy content of crude glycerol can be considered excellent even when compared to energy of common ingredients such as maize and wheat, presenting 0.97 and 0.89 of energy ADCs, and 15.2 and 13.95MJ kg-1 of digestible energy for Pacu and Silver catfish, respectively. In conclusion, crude glycerol is an energetic ingredient with good potential in Brazilian native fish diets.

A Path to Economic Viability for the Biodiesel Industry: Production of 1,3-Propanediol from Crude Glycerol

2010 ◽  
Vol 150 ◽  
pp. 370-370 ◽  
Author(s):  
Pinki Anand ◽  
Sweta Yadav ◽  
Vinod Kumar ◽  
Kakoli Dutt ◽  
R.K. Saxena
Keyword(s):  
Crude Glycerol ◽  
Economic Viability ◽  
Biodiesel Industry

scholarly journals Crude glycerol from biodiesel industry as substrate for biosurfactant production by Bacillus subtilis ATCC 6633

2014 ◽  
Vol 57 (2) ◽  
pp. 295-301 ◽  
Author(s):  
Marylane de Sousa ◽  
Iuri Torquato Dantas ◽  
Anne Kamilly Nogueira Felix ◽  
Hosiberto Batista de Sant'Ana ◽  
Vânia Maria Maciel Melo ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Crude Glycerol ◽  
Biosurfactant Production ◽  
Subtilis Atcc ◽  
Bacillus Subtilis Atcc ◽  
Biodiesel Industry

scholarly journals Utilization of Crude Glycerol as a Substrate for the Production of Rhamnolipid by Pseudomonas aeruginosa

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Walaa A. Eraqi ◽  
Aymen S. Yassin ◽  
Amal E. Ali ◽  
Magdy A. Amin
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Carbon Source ◽  
Sodium Nitrate ◽  
Sole Carbon Source ◽  
Crude Glycerol ◽  
Screening Program ◽  
Waste Glycerol ◽  
Pharmaceutical Industries ◽  
Microbial Isolates ◽  
Biodiesel Industry

Biosurfactants are produced by bacteria or yeast utilizing different substrates as sugars, glycerol, or oils. They have important applications in the detergent, oil, and pharmaceutical industries. Glycerol is the product of biodiesel industry and the existing glycerol market cannot accommodate the excess amounts generated; consequently, new markets for refined glycerol need to be developed. The aim of present work is to optimize the production of microbial rhamnolipid using waste glycerol. We have developed a process for the production of rhamnolipid biosurfactants using glycerol as the sole carbon source by a local Pseudomonas aeruginosa isolate that was obtained from an extensive screening program. A factorial design was applied with the goal of optimizing the rhamnolipid production. The highest production yield was obtained after 2 days when cells were grown in minimal salt media at pH 6, containing 1% (v/v) glycerol and 2% (w/v) sodium nitrate as nitrogen source, at 37°C and at 180 rpm, and reached 2.164 g/L after 54 hours (0.04 g/L h). Analysis of the produced rhamnolipids by TLC, HPLC, and FTIR confirmed the nature of the biosurfactant as monorhamnolipid. Glycerol can serve as a source for the production of rhamnolipid from microbial isolates providing a cheap and reliable substrate.

scholarly journals Organic Carbonate Production Utilizing Crude Glycerol Derived as By-Product of Biodiesel Production: A Review

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1483
Author(s):  
Saifuddin Nomanbhay ◽  
Mei Yin Ong ◽  
Kit Wayne Chew ◽  
Pau-Loke Show ◽  
Man Kee Lam ◽  
...  
Keyword(s):  
Crude Glycerol ◽  
Field Research ◽  
Good Deal ◽  
Biodiesel Production ◽  
Glycerol Carbonate ◽  
Market Demand ◽  
Promising Alternative ◽  
Carbonate Production ◽  
Production Studies ◽  
Alternative Material

As a promising alternative renewable liquid fuel, biodiesel production has increased and eventually led to an increase in the production of its by-product, crude glycerol. The vast generation of glycerol has surpassed the market demand. Hence, the crude glycerol produced should be utilized effectively to increase the viability of biodiesel production. One of them is through crude glycerol upgrading, which is not economical. A good deal of attention has been dedicated to research for alternative material and chemicals derived from sustainable biomass resources. It will be more valuable if the crude glycerol is converted into glycerol derivatives, and so, increase the economic possibility of the biodiesel production. Studies showed that glycerol carbonate plays an important role, as a building block, in synthesizing the glycerol oligomers at milder conditions under microwave irradiation. This review presents a brief outline of the physio-chemical, thermodynamic, toxicological, production methods, reactivity, and application of organic carbonates derived from glycerol with a major focus on glycerol carbonate and dimethyl carbonate (DMC), as a green chemical, for application in the chemical and biotechnical field. Research gaps and further improvements have also been discussed.

scholarly journals Effect of Calcination on Shell Powder Catalyst Towards Effectiveness on Catalysing Transesterification of Crude Glycerol to Glycerol Carbonate

2021 ◽  
Vol 945 (1) ◽  
pp. 012038
Author(s):  
Janice Sheow Tung Liew ◽  
Siew Yong Leong ◽  
Po Kim Lo
Keyword(s):  
Crude Glycerol ◽  
Dimethyl Carbonate ◽  
Molar Ratio ◽  
Attenuated Total Reflectance ◽  
Glycerol Carbonate ◽  
Base Catalyst ◽  
X Ray Diffraction ◽  
Total Reflectance ◽  
X Ray ◽  
Shell Powder

Abstract Valorisation of crude glycerol has gained much interest in the industry associated with the surplus of crude glycerol caused by the increase usage of biodiesel. Transesterification of crude glycerol using a heterogenous base catalyst is one of the effective ways to utilize the additional glycerol. Seawater clams commonly serve as a food source to us and the waste shells are a source of calcium carbonate that is abundantly available and can be converted into a heterogenous base catalyst for the transesterification process. Therefore, this study focuses on the utilization of catalyst synthesized from a species of seawater clam, Paratapes Undulatus in a transesterification reaction using crude glycerol (C.GLY) as a reactant together with dimethyl carbonate (DMC) to synthesize glycerol carbonate (GLYC). The catalysts are characterized using Field Emission Scanning Electron Microscope (FESEM), Attenuated Total Reflectance (ATR), Thermogravimetric Analysis (TGA), X-ray diffraction (XRD) and Particle Size Analyser (PSA). The product is characterized using Gas Chromatography (GC-FID). The performance of the synthesized shell catalyst with different calcination condition was studied. The reaction using the calcined shell catalyst is carried out at 75°C, molar ratio of 2 and 2wt% of catalyst for 1 hour. The catalyst that has the best performance is the shell catalyst that is calcined for 3h, which give the yield of 54.16%.

scholarly journals Exploring nutrient limitation for polyhydroxyalkanoates synthesis by newly isolated strains ofAeromonassp. using biodiesel-derived glycerol as a substrate

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5838 ◽  
Author(s):  
Justyna Możejko-Ciesielska ◽  
Tomasz Pokoj
Keyword(s):  
Crude Glycerol ◽  
Municipal Wastewater ◽  
Nitrogen Deficiency ◽  
Treatment Plant ◽  
Second Step ◽  
Rrna Gene ◽  
Municipal Wastewater Treatment ◽  
Nitrogen And Phosphorus ◽  
Pure Glycerol ◽  
Biodiesel Industry

Aeromonasspp. strains isolated from activated sludge in a municipal wastewater treatment plant were found to be able to synthesize polyhydroxyalkanoates (PHA) utilizing pure and crude glycerol. The 16S rRNA gene sequence of the isolates exhibited similarity toAeromonas hydrophila,A. aquatica, andA. salmonicida. Our results confirmed that the adequate supply of nitrogen and phosphorus during culture in 250-ml shake flasks did not stimulate the synthesis of PHAs. The results indicate that the PHA content of cells was higher under a phosphorus-limiting environment compared to nitrogen starvation. In the two-stage cultivation using glucose (in the first step) and crude glycerol from biodiesel industry (in the second step) as a component of the growth medium, the analyzed strains grew to 3.06 g/l of cell dry weight containing up to 22% of PHAs. Furthermore, during the same culture strategy up to 42% of PHAs were extracted, when in the second step of the process,Aeromonassp. AC_03 was grown on pure glycerol under phosphorus limitation. The purified biopolymer was confirmed to be polyhydroxybutyrate.Aeromonassp. AC_02 was also capable to accumulate the poly(3-hydroxybutyrate-co-3-hydroxyvalerate) copolymer when pure glycerol was added as a substrate under nitrogen-deficiency one-step bioprocess. Our results confirm that due to the biopolymer productivity, newly isolated strains could be exploited for obtaining valuable biopolymers using wastes generated from biodiesel industry.

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