Esterification using a liquid lipase to remove residual free fatty acids in biodiesel |
| |
| Institution: | 1. Department of Chemical and Biochemical Engineering, Technical University of Denmark, Soltofts Plads, Building 227, 2800 Kgs. Lyngby, Denmark;2. Novozymes A/S, Vegetable oil processing R&D, Krogshojvej 36, 2800 Lyngby, Denmark;1. Department of Engineering, Aarhus University, 8000 Aarhus, Denmark;2. School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Malaysia;3. Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark;1. Key Laboratory for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;2. Tsinghua Innovation Center in Dongguan, Guangdong 523808, China;1. Department of Engineering, Aarhus University, 8000 Aarhus, Denmark;2. School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Malaysia;3. Novozymes A/S, Krogshøjvej 36, 2880 Bagsværd, Copenhagen, Denmark;4. Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark;1. Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil;2. Department of Chemical Engineering, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil;1. Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Bloco 940, Fortaleza, CE CEP 60455760, Brazil;2. Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Bloco 709, Fortaleza, CE CEP 60455760, Brazil;3. Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, Campus do Pici, Bloco 935, Fortaleza, CE CEP 60455760, Brazil;4. Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção, CE CEP 62790970, Brazil;5. Laboratory SPCMIB UMR 5068, CNRS, Université Toulouse III, Paul Sabatier, 118 route de Narbonne, Toulouse 31062 CEDEX 9, France;6. CNRS, Laboratoire de Chimie de Coordination, LCC, UPR 8241, 205, Route de Narbonne, 44099, Toulouse 31077 CEDEX 4, France;7. Mestrado Acadêmico em Sociobiodiversidades e Tecnologias Sustentáveis, MASTS, Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Acarape, CE 62785-000, Brazil;8. Université Toulouse III, Paul Sabatier, 118 route de Narbonne, Toulouse 31062 CEDEX 9, France |
| |
| Abstract: | Lately, the price of liquid formulated lipase enzymes, usable in biodiesel production, has been significantly reduced. This enables one-time use of these enzymes for transesterification, and the process is used industrially. However, the process suffers a drawback by leaving 2?3 % free fatty acids in the crude biodiesel, which reduces the profitability. This article discusses a novel enzymatic FFA esterification reaction utilizing liquid lipase B from Candida antarctica (CALB) along with glycerol at low water concentrations to eliminate the residual FFA. The reaction setup was found able to reduce the free fatty acid concentration to within biodiesel specifications of < 0.25 wt.% FFA. Additionally, two alternative process setups are proposed, which were both found viable through a combination of experiments and simulations, and can be developed into full-scale processes. The resulting two-step enzymatic biodiesel process - transesterification followed by esterification - provides a potential process layout for the industrial production of biodiesel. |
| |
| Keywords: | Biodiesel FAME Lipase Esterification Drying process High yield |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
