A comprehensive mathematical model of a serial composite process for biomass and coal Co-gasification |
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| Affiliation: | 1. College of Civil Engineering, Hunan University, Changsha, 410082, China;2. School of Municipal and Geomatics Engineering, Hunan City University, Yiyang, 413000, China;3. School of Civil Engineering, University of South China, Hengyang, 421001, China;1. Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;2. Institute of Environmental Protection and Technical Safety Supervision, PetroChina Southwest Oil and Gas Field Branch, Chengdu 610051, Sichuan, China;3. Department of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China;1. Tianjin Key Lab. of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300354, PR China;2. College of Food Science and Engineering, Tianjin Agricultural University, Tianjin, 300384, PR China;3. School of Material Science and Engineering, Tianjin University, Tianjin, 300354, PR China;1. Department of Chemical Engineering, Islamic University of Indonesia, Sleman, Daerah Istimewa, Yogyakarta, 55584, Indonesia;2. IT Innovation Center, General Motors, Warren, MI, 48092, USA;3. Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia;4. Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia;1. Natural Science Centre for Basic Research and Development, Hiroshima University, 739-8530, Japan;2. Materials Processing and Corrosion Engineering Division, Materials Group, BARC, Mumbai, 400 085, India;1. Departamento de Ecomateriales y Energía, Facultad de Ingeniería Civil, Universidad Autónoma de Nuevo León, Av. Universidad S/N Ciudad Universitaria, San Nicolás de Los Garza, Nuevo León, 66455, Mexico;2. School of Physics and Astronomy and the Photon Science Institute, the University of Manchester, Manchester M13 9PL, United Kingdom;3. School of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom;4. MaxLab, Ole Römers Väg, 1 223 63 Lund, Sweden |
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| Abstract: | A comprehensive mathematical model to simulate a serial composite process for biomass and coal co-gasification has been built. The process is divided into combustion stage and gasification stage in the same gasifier, it is a new process for the co-gasification of biomass and coal. The model is based on reaction kinetic, hydrodynamics, mass and energy balances, it is a one-dimensional, K-L three-phase, unsteady state model. The model is divided into two sub-models, one is the combustion sub-model, the other is the coal-biomass serial gasification sub-model. Combustion sub-model includes coal pyrolysis, dense phase combustion, and dilute phase combustion model. Gasification sub-model includes biomass pyrolysis, dense phase coal gasification, dense phase biomass gasification, and dilute phase gasification model. The model studies the effects of key parameters on gasification properties, including gasification temperature, S/B, B/C, and predicts the composition of product gas and gas calorific value along the reactor's axis at different time. The model predictions agree well with experimental results and can be used to study and optimize the operation of the process. |
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| Keywords: | Biomass Coal Serial Gasification Kinetic |
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