Effect of Glycerol Kinetics and Mass Transfer During Enzymatic Biodiesel Production from Jatropha Oil

2017 ◽  
pp. 305-317 ◽  
Author(s):  
Fahad Al Basir ◽  
Xianbing Cao ◽  
Sushil Kumar ◽  
Priti Kumar Roy
Keyword(s):  
Mass Transfer ◽  
Biodiesel Production ◽  
Jatropha Oil

Efficient Micromixing for Continuous Biodiesel Production from Jatropha Oil

2018 ◽  
Vol 9 (1) ◽  
pp. 133-139
Author(s):  
Waleed S. Mohammed ◽  
Ahmed H. El-Shazly ◽  
Marwa F. Elkady ◽  
Masahiro Ohshima
Keyword(s):  
Methyl Esters ◽  
Continuous Process ◽  
Sol Gel ◽  
Average Diameter ◽  
Biodiesel Production ◽  
High Mass ◽  
Molar Ratio ◽  
Jatropha Oil ◽  
Energy Deficiency ◽  
Gel Preparation

Introduction: The utilization of biodiesel as an alternative fuel is turning out to be progressively famous these days because of worldwide energy deficiency. The enthusiasm for utilizing Jatropha as a non-edible oil feedstock is quickly developing. The performance of the base catalyzed methanolysis reaction could be improved by a continuous process through a microreactor in view of the high mass transfer coefficient of this technique. Materials & Methods: Nanozirconium tungstovanadate, which was synthetized using sol-gel preparation method, was utilized in a complementary step for biodiesel production process. The prepared material has an average diameter of 0.066 &µm. Results: First, the NaOH catalyzed methanolysis of Jatropha oil was investigated in a continuous microreactor, and the efficient mixing over different mixers and its impact on the biodiesel yield were studied under varied conditions. Second, the effect of adding the nanocatalyst as a second stage was investigated. Conclusion: The maximum percentage of produced methyl esters from Jatropha oil was 98.1% using a methanol/Jatropha oil molar ratio of 11 within 94 s using 1% NaOH at 60 &°C. The same maximum conversion ratio was recorded with the nanocatalyst via only 0.3% NaOH.

Biodiesel production from crude jatropha oil catalyzed by immobilized lipase/acyltransferase from Candida parapsilosis in aqueous medium

2016 ◽  
Vol 218 ◽  
pp. 1224-1229 ◽  
Author(s):  
Joana Rodrigues ◽  
Véronique Perrier ◽  
Jérôme Lecomte ◽  
Eric Dubreucq ◽  
Suzana Ferreira-Dias
Keyword(s):  
Aqueous Medium ◽  
Candida Parapsilosis ◽  
Immobilized Lipase ◽  
Biodiesel Production ◽  
Jatropha Oil

scholarly journals Studies on biodiesel produced from Jatropha oil in Cambodia by a non-catalytic using C2H5OH

2014 ◽  
Vol 17 (2) ◽  
pp. 102-108
Author(s):  
Phuoc Van Nguyen ◽  
Chhoun Vi Thun ◽  
Quan Thanh Pham
Keyword(s):  
Catalyst Deactivation ◽  
Reaction Times ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Biodiesel Fuel ◽  
Jatropha Oil ◽  
Fuel Blend ◽  
International Standard ◽  
Astm D6751

Different technologies are currently available for biodiesel production from various kinds of lipid containing feedstock. Among them, the alkaline-catalyzed methods are the most widely studied. However, here are several disadvantages related to biodiesel production using alkaline catalysts such as generation of wastewater, catalyst deactivation, difficulty in the separation of biodiesel from catalyst and glycerin, etc. To limit the problems mentioned above, in this study, biodiesel is produced by a non-catalytic using C2H5OH. The effect of experimental variables (the molar ratio ethanol/oil of 41.18:1 – 46.82:1, reaction times of 50 - 90 minutes and reaction temperatures of 2750C - 2950C) on the yield of biodiesel was studied. The 96% yield of Cambodia biodiesel of reaction between C2H5OH and Jatropha Oil at 46:1 at temperature 2900C at 60 minutes no using catalysts. Obtained biodiesel fuel was up to the International Standard ASTM D6751 for biodiesel fuel blend stock (B100).

scholarly journals Comparison of oil press for jatropha oil – a review

2016 ◽  
Vol 61 (No. 1) ◽  
pp. 1-13 ◽  
Author(s):  
A.N. Siregar ◽  
J.A. Ghani ◽  
C.H.C. Haron ◽  
M. Rizal ◽  
Z. Yaakob ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Oil Extraction ◽  
Biodiesel Production ◽  
South East Asia ◽  
Jatropha Oil ◽  
Extraction Techniques ◽  
Advantages And Disadvantages ◽  
Jatropha Seeds ◽  
Mechanical Extraction ◽  
Near Future

As petrol will soon be exhausted in the near future, Jatropha is going to be one of the substitute candidates for future biodiesel production. Countries of South-East Asia, such as Malaysia, they are going to start the establishment of Jatropha plantations assuming that Jatropha will be the main resource for biodiesel production. A press is commonly used to extract oils from Jatropha. An oil press can be manually driven or engine-powered. In this paper, we will review some available advances focused on mechanical extraction techniques, covering three types of press for Jatropha oil extraction. We have found that major points like operating principles, oil extraction levels, advantages and disadvantages of each press and important factors to increase oil recovery. Based on the study, three types of press are: ram press, which is ineffective; strainer press, which is able to produce more oil than others and cylinder-hole press, which is the best due to its capacity in extracting oil from Jatropha seeds for about 89.4% of oil yields.

Hollow Fiber Membrane (HFM) Facilitated CO2 Delivery to a Cyanobacteria Layer for Biofuel Production

2013 ◽  
Author(s):  
Michael Kalontarov ◽  
Erica E. Jung ◽  
Aadhar Jain ◽  
Syed Saad Ahsan ◽  
David Erickson
Keyword(s):  
Mass Transfer ◽  
Hollow Fiber ◽  
Photosynthetic Bacteria ◽  
Co2 Fixation ◽  
Hollow Fiber Membrane ◽  
Biodiesel Production ◽  
Biofuel Production ◽  
Bacteria Growth ◽  
Post Process ◽  
Fiber Spacing

Photosynthetic bacteria have been shown to be advantageous organisms for biofuel production due to high CO2 fixation efficiencies, fast growth rates, and lower water requirements. Recently, cyanobacteria been metabolically engineered to efficiently secrete their products into a surrounding solution. This has the advantage of potentially eliminating the requirement to harvest and post-process the organisms in order to extract a biofuel, which is one of the most energy and water expensive processes in most biodiesel production strategies. Lagging behind the development of these organisms however has been the development of new photobioreactor (PBR) strategies that can efficiently delivery light and inorganic carbon to the bacteria while extracting the secreted product and O2 from the solution phase. Hollow fiber membranes (HFMs) are a method for bubble-less gas exchange that has been shown to be effective at enhancing mass transfer in applications such as wastewater and landfill treatment. HFM technology could be used to overcome the mass transport challenges associated with photobioreactors. HFM modules have been used to increase mass transfer of CO2 to the bulk media in bench scale PBRs; however, the use of HFM fibers as both a mean to exchange and deliver a gas phase throughout a PBR has not been explored. We have characterized the passive transport along a single fiber in a miniature reactor in previous work. Here we extend our work to arrays of HFM fibers. We performed a range of experiments to characterize bacteria growth rate and distribution as a function fiber spacing and active transport through the fibers, and report optimized values for these variables.

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