Mass transfer,adsorption and reaction in slurry reactors |
| |
| Affiliation: | 1. Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram 603203, Tamil Nadu, India;2. Department of Physics, Bannari Amman Institute of Technology, Sathyamangalm, Erode 638401, Tamil Nadu, India;1. Institute of Energy Technologies and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain;2. Department of Chemical Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 10-14, 08019 Barcelona, Spain;1. Istanbul Okan University, Department of Mechanical Engineering, Istanbul 34959, Turkey;2. Osmaniye Korkut Ata University, Department of Chemical Engineering, Osmaniye 80000, Turkey;3. Shizuoka University, Faculty of Engineering, Johoku, Naka-ku, Hamamatsu 3-5-1, Japan;4. Kyushu University, International Institute for Carbon-Neutral Energy Research, 744 Motooka, Nishiku, Fukuoka 819-0395, Japan;5. Kyushu University, Mechanical Engineering Department, 744 Motooka, Nishiku, Fukuoka 819-0395, Japan;1. Istituto di Ricerche sulla Combustione, Consiglio Nazionale delle Ricerche, Piazzale Vincenzo Tecchio 80, 80125 Napoli, Italy;2. Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Complesso Universitario di Monte Sant''Angelo, 80126 Napoli, Italy;3. Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, Piazzale Vincenzo Tecchio 80, 80125 Napoli, Italy;1. Key Laboratory of Coal Gasification and Energy Chemical of Ministry of Education, East China University of Science and Technology, P.O. Box 272, Shanghai 200237, PR China;2. Shanghai Engineering Research Center of Coal Gasification, East China University of Science and Technology, P.O. Box 272, Shanghai 200237, PR China;3. ENN Group, Ordos City, Inner Monglia 014300, PR China;4. State Key Laboratory of Safety and Control for Chemicals, Qingdao, Shangdong 266071, PR China |
| |
| Abstract: | The performance of three-phase isothermal slurry reactors with continuous gas flow and batch liquid may be affected by gas-bubble-to-liquid and liquid-to-catalyst-particle mass transfer, intraparticle diffusion in the pores of the particles, and adsorption and surface reaction. In dynamic operation, e.g. by introducing a pulse of reactant in the gas feed, the rates of adsorption and surface reaction are not necessarily equal. Equations for a first-order reaction are developed for the zeroth and first moments, in both the effluent gas and the batch liquid, in terms of the separate rate constants for adsorption and surface reaction and the other pertinent rate and equilibrium constants. The results show that under some operating conditions it should be possible to evaluate, from experimentally determined moments, the separate values of the adsorption and reaction rate constants. This would eliminate the assumption that one of the steps is rate controlling.Dynamic adsorption and reaction data are apparently unavailable at present to apply in the derived equations. However, for the special case of adsorption in the absence of reaction, for which experimental data are available, the predicted moments agree with the experimental values. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
