Numerical investigation of a multichannel reactor for syngas production by methanol steam reforming at various operating conditions |
| |
| Affiliation: | 1. School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China;2. Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen 518055, China;3. Institute of Hydrogen and Fuel Cell, Harbin Institute of Technology, Shenzhen 518055, China;1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;2. School of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China;1. Department of Mechanical Engineering, Kun Shan University, No.195, Kunda Rd., Yongkang Dist., Tainan City 710, Taiwan, ROC;2. Department of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan City 710, Taiwan, ROC;1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;2. School of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China;1. Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen, 361005, China;2. Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province, (IKKEM), Xiamen, 361005, China |
| |
| Abstract: | A novel multichannel reactor with a bifurcation inlet manifold, a rectangular outlet manifold, and sixteen parallel minichannels with commercial CuO/ZnO/Al2O3 catalyst for methanol steam reforming was numerically investigated in this paper. A three-dimensional numerical model was established to study the heat and mass transfer characteristics as well as the chemical reaction rates. The numerical model adopted the triple rate kinetic model of methanol steam reforming which can accurately calculate the consumption and generation of each species in the reactor. The effects of steam to carbon molar ratio, weight hourly space velocity, operating temperature and catalyst layer thickness on the methanol steam reforming performance were evaluated and discussed. The distributions of temperature, velocity, species concentration, and reaction rates in the reactor were obtained and analyzed to explain the mechanisms of different effects. It is suggested that the operating temperature of 548 K, steam to carbon ratio of 1.3, and weight hourly space velocity of 0.67 h?1 are recommended operating conditions for methanol steam reforming by the novel multichannel reactor with catalyst fully packed in the parallel minichannels. |
| |
| Keywords: | Methanol steam reforming Hydrogen Syngas Multichannel reactor Kinetic model |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
