scholarly journals Parameters Affecting the Extraction Process of Jatropha curcas Oil Using a Single Screw Extruder

2015 ◽  
Vol 47 (3) ◽  
pp. 266-278
Author(s):  
Ali Nurrakhmad Siregar ◽  
◽  
Jaharah A. Ghani ◽  
Che Hassan Che Haron ◽  
Muhammad Rizal ◽  
...  
Keyword(s):  
Jatropha Curcas ◽  
Extraction Process ◽  
Screw Extruder ◽  
Jatropha Curcas Oil ◽  
Single Screw ◽  
Single Screw Extruder

Production and Characterization of Porous Starch Granule and Poly(butylene adipate-co-terephthalate) Blend as a Bio-Composite

2012 ◽  
Vol 550-553 ◽  
pp. 1513-1521
Author(s):  
Sirirat Thothong ◽  
Klanarong Sriroth ◽  
Rattana Tantatherdtam ◽  
Amnat Jarerat
Keyword(s):  
Starch Granule ◽  
Rice Starch ◽  
Starch Granules ◽  
Screw Extruder ◽  
Elongation At Break ◽  
Single Screw ◽  
Single Screw Extruder ◽  
Scanning Electron ◽  
Granular Starch

To improve the miscibility of native rice starch granules and poly(butylene adipate-co-terephthalate)(PBAT), rice starch was hydrolyzed by a mixture of α-amylase and amyloglucosidase. The obtained porous rice granular starch was then mechanically blended with PBAT by single screw extruder. Many pits and holes on the surface of starch granules were observed by scanning electron microscopy (SEM). The rough surface of the rice starch granules improved the compatibility of the polymers in the blends, which consequently increased the tensile strength and the elongation at break. In addition, SEM also revealed that the porous granules were homogeneously distributed in the polymer matrix with no appearance of gaps.

scholarly journals Characteristics of nanoclay reinforced starch biocomposites through the extrusion process

2018 ◽  
Vol 204 ◽  
pp. 00008
Author(s):  
Heru Suryanto ◽  
Alfian Widi Rahmawan ◽  
Solichin ◽  
Sahana Rizki Tata ◽  
Uun Yanuhar
Keyword(s):  
Tensile Strength ◽  
Functional Group ◽  
Extrusion Process ◽  
Cassava Starch ◽  
Diffraction Peak ◽  
Screw Extruder ◽  
Materials Engineering ◽  
Single Screw ◽  
Single Screw Extruder ◽  
Composite Properties

The development of materials engineering has led to many significant discoveries one of which is biocomposite with its diverse applications. The addition of reinforcing materials in biopolymers improves the composite properties. This study aimed at investigating the effect of adding nanoclay on the tensile strength, morphology, functional group, and structure of extruded biocomposites with cassava starch matrix. This experimental research involved different concentrations of nanoclay i.e. 0%, 2.5%, 5%, 7.5%. The extrusion process was performed using a single screw extruder at 120°C. The samples were characterized by tensile testing, XRD, and SEM. The biocomposite reinforced with 5% nanoclay had the highest tensile strength of 10.8 MPa. The highest diffraction peak at 2θ of 19.4° appeared in the sample added with 5% nanoclay. The addition of excessive amounts of nanoclay can hinder the formation of exfoliated structures.

Finite Element Modeling of Fluid Flow, Heat Transfer, and Melting of Biomaterials in a Single-screw Extruder

2006 ◽  
Vol 69 (5) ◽  
pp. E212-E223 ◽  
Author(s):  
L.J. Wang ◽  
G.M. Ganjyal ◽  
D.D. Jones ◽  
C.L. Weller ◽  
M.A. Hanna
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Fluid Flow ◽  
Finite Element Modeling ◽  
Screw Extruder ◽  
Element Modeling ◽  
Single Screw ◽  
Single Screw Extruder ◽  
Flow Heat

scholarly journals Yield Evaluation and Primary Energy Assessment of the Jatropha curcas Oil Extraction Process for Use as a Biofuel in Engines

2021 ◽  
pp. 37-46
Author(s):  
Fredy Torres Mejía ◽  
Juan Alexander Torres Mejía ◽  
Henry Edgardo Maradiaga Galeano ◽  
Claudia López Toro
Keyword(s):  
Jatropha Curcas ◽  
Extraction Process ◽  
Primary Energy ◽  
Oil Extraction ◽  
Raw Material ◽  
Shell Weight ◽  
Jatropha Curcas Oil ◽  
Energy Assessment ◽  
The One ◽  
Jatropha Cake

The aim of this work is to evaluate the performance of the extraction and mechanical filtering of Jatropha curcas oil and to evaluate the primary energy of the raw material resulting from the process, this is a qualitative-quantitative study of transversal order based on measurements and analysis of the process in situ: The following factors were evaluated as factors: weight of oil per seed processed, weight of pressed cake, and measurements in the filtering process, from which a balance of matter of the process used was constructed, and the energy valuation of the oil and pressed cake, energy was used as the response variable, measured in Tons of Oil Equivalent (TEP), Barrels of Oil Equivalent (BEP), and tons of Carbon Dioxide Equivalent (Ton CO2eq). The seed used is Creole, the one existing in the area, the extraction was carried out in a KEK-P0101 press, and a KEK-F0090 filter. The collected seeds were dried and then discarded, the average shell weight is 40% of the total weight of the dry seed, from the oil extraction process a yield of 18.6% was obtained using seed with 5.8% humidity, and from the oil filtering process, when it passed through the filter, no weight loss in kg was obtained; finally, the equivalent primary energy valuation of one ton of oil is 39076. 39 MJTon-1, which is equivalent to 0.94 TEP, 2.90 Ton CO2 eq, and 20.87 BEP; in the same way one ton of Jatropha cake represents 15969.30 MJ, equivalent to 0.38 TEP, 1.18 Ton CO2 eq, and 8. 53 BEP, and the total primary energy between one ton of oil and one ton of Jatropha cake after oil extraction together contain 55045.61 MJTon-1, equivalent to 1.32 TEP, 4.08 Ton CO2 eq, and 29.41 BEP.

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