Transesterification reaction of the fat originated from solid waste of the leather industry |
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| Authors: | Aslı İşler Serap Sundu Melek Tüter Filiz Karaosmanoğlu |
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| Affiliation: | 1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, 610065, PR China;2. Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, PR China;1. Laboratory for Leather and Environmental Studies – LACOURO, Chemical Engineering Department, Federal University of Rio Grande do Sul, Porto Alegre, Brazil;2. Chemical Engineering Course, Post-Graduation Program in Science and Food Technology, University of Passo Fundo, Brazil;1. Laboratory for Leather and Environmental Studies – LACOURO, Chemical Engineering Department, Federal University of Rio Grande do Sul, Brazil;2. Bacteriology Laboratory, Microbiology Department, Institute of Basic Health Sciences – ICBS, Federal University of Rio Grande do Sul, Brazil;1. Department of Petrochemical Engineering, RVS College of Engineering and Technology, Coimbatore 641402, India;2. Department of Mechanical Engineering, Government College of Technology, Coimbatore 641013, India;3. Department of Physical Sciences, Institute of Advanced Research, Gandhinagar 382426, India;4. School of Petroleum Technology, Pandit Deendayal Petroleum University, Gandhinagar 382007, India |
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| Abstract: | The leather industry is an industry which generates a large amount of solid and liquid wastes. Most of the solid wastes originate from the pre-tanning processes while half of it comes from the fleshing step. Raw fleshing wastes which mainly consist of protein and fat have almost no recovery option and the disposal is costly. This study outlines the possibility of using the fleshing waste as an oil source for transesterification reaction. The effect of oil/alcohol molar ratio, the amount of catalyst and temperature on ester production was individually investigated and optimum reaction conditions were determined. The fuel properties of the ester product were also studied according to the EN 14214 standard. Cold filter plugging point and oxidation stability have to be improved in order to use the ester product as an alternative fuel candidate. Besides, this product can be used as a feedstock in lubricant production or cosmetic industry. |
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