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Development and Characterization of Eco-Friendly Non-Isocyanate Urethane Monomer from jatropha curcas oil for Wood Composite Applications

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Journal of Renewable Materials 2023年第1期11卷 41-59页

作者： Samsul Bhakri Muhammad Ghozali Edy Cahyono Evi Triwulandari Witta Kartika Restu Nissa Nurfajrin Solihat Apri Heri Iswanto Petar Antov Viktor Savov Lee Seng Hua ErikaAyu Agustiany Lubos Kristak Widya Fatriasari Department of Chemistry Universitas Negeri SemarangSemarang50229Indonesia Research Center for Chemistry National Research and Innovation Agency(BRIN)Serpong15314Indonesia Research Center for Biomass and Bioproducts National Research and Innovation Agency(BRIN)Cibinong16911Indonesia Department of Forest Product Faculty of ForestryUniversitas Sumatera UtaraMedan20155Indonesia JATI-Sumatran Forestry Analysis Study Center Medan20155Indonesia Faculty of Forest Industry University of ForestrySofia1797Bulgaria Laboratory of Biopolymer and Derivatives Institute of Tropical Forestry and Forest ProductUniversiti Putra MalaysiaSelangor43400Malaysia Department of Forest Products Faculty of Forestry and EnvironmentIPB UniversityBogor16680Indonesia Faculty of Wood Sciences and Technology Technical University in ZvolenZvolen96001Slovakia

The aim of this research work was to evaluate the potential of using renewable natural feedstock,i.e.,jatropha curcas oil(JCO)for the synthesis of non-isocyanate polyurethane(NIPU)resin for wood composite *** polyurethane(PU)is synthesized through a polycondensation reaction between isocyanate and ***,utilizing toxic and unsustainable isocyanates for obtaining PU could contribute to negative impacts on the environment and human ***,the development of PU from eco-friendly and sustainable resources without the isocyanate route is *** this work,tetra-n-butyl ammonium bromide was used as the activator to open the epoxy ring with 3-Aminopropyltriethoxisylane as a catalyst to yield urethane of JCO(UJCO).The UJCO were characterized by Fourier Transform Infra-Red spectroscopy(FTIR)and their oxirane,and hydroxyl values were *** result showed that a decrease in oxirane value was found while the hydroxyl value was increased during the time,confirming that the urethane group was *** presence of functional groups in FTIR spectra at wave numbers 1732.08,1562.34,and 3348.42 cm^(−1) indicates the functional groups of C=O(urethane carbonyl),–NH,and–OH,respectively confirmed this *** potential applications of NIPU in the wood composite were also outlined.

关键词： jatropha curcas oil urethane groups non-isocyanate polyurethane epoxidized JCO cyclic carbonate oxirane value wood composites

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Development of solid base catalyst X/Y/MgO/-Al_(2)O_(3) for optimization of preparation of biodiesel from jatropha curcas *** oil

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Frontiers of Chemical Science and Engineering 2008年第4期2卷 468-472页

作者： Rui WANG Song YANG Shitao YIN Baoan SONG Pinaki SBHADURY Wei XUE Shuwei TAO Zhaohui JIA Da LIU Liang GAO Center for Research and Development of Fine Chemicals Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou UniversityGuiyang 550025China Department of Biology and Environment Engineering Guiyang CollegeGuiyang 550005China

The preparation and regeneration conditions of the identified catalyst X/Y/MgO/?-Al2O3 with high catalytic activity were studied and optimized. The biodiesel was prepared by transesterification of jatropha curcas seed oil produced in Guizhou with methanol at its reflux temoerature in the presence of X/Y/MgO/?-Al2O3 . The pilot plant tests were carried out in a 100 L reaction vessel. Both average yield and fatty acid methyl esters (FAME) content reached more than 96.50% under the optimum reaction conditions of the pilot plant tests designed with an oil/methanol molar ratio of 1 : 10, catalyst concentration of 1.00%, and reaction time of 3 h at reflux temperature. In addition, analysis shows that the quality of biodiesel meets the standard EN 14214.

关键词： Solid base catalyst jatropha curcas oil Transesterification reaction Pilot plant test

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Optimization of pretreatment of jatropha oil with high free fatty acids for biodiesel production

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Frontiers of Chemical Science and Engineering 2012年第2期6卷 210-215页

作者： Supriyono SUWITO Giuliano DRAGONE Hary SULISTYO Bardi MURACHMAN Suryo PURWONO Jose TEIXEIRA Institute for Biotechnology and Bioengineering Centre of Biological Engineering University of Minho Braga 4710-057 Portugal Chemical Engineering Department Gadjah Mada University Yogyakarta 55281 Indonesia

A central composite rotatable design and response surface methodology were used in order to investigate the individual and combined effects of the ethanol-to-oil ratio, H2SO4 concentration, temperature and time of reaction on the reduction of free fatty acid （FFA） in jatropha oil. A quadratic polynomial model relating the reaction variables with FFA reduction was developed, presenting a good coefficient of determination （R2= 0.893）. For reducing FFA to less than 1%, the optimal combination was found to be 0.62 v.v^-1 ethanol-to-oil ratio （14.9 v.v^-1 ethanol-to-FFA ratio）, 1.7% *** H2SO4 concentration, and 79 rain reaction time at a reaction temperature of 54℃. These results are of great relevance to maximize methyl esters formation by transesterification using an alkaline catalyst.

关键词： biodiesel biofuel esterification free fatty acids jatropha curcas oil

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