Optimization of inlet temperature for deactivating LTWGS reactor performance
J. L. Ayastuy
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Search for more papers by this authorM. A. Gutiérrez-Ortiz
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Search for more papers by this authorJ. A. González-Marcos
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Search for more papers by this authorA. Aranzabal
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Search for more papers by this authorCorresponding Author
J. R. González-Velasco
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, SpainSearch for more papers by this authorJ. L. Ayastuy
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Search for more papers by this authorM. A. Gutiérrez-Ortiz
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Search for more papers by this authorJ. A. González-Marcos
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Search for more papers by this authorA. Aranzabal
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Search for more papers by this authorCorresponding Author
J. R. González-Velasco
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, Spain
Group of Chemical Technologies for Environmental Sustainability, Dept. of Chemical Engineering, Faculty of Science and Technology, Universidad del País Vasco/Euskal Herriko Unibertsitatea, 48080 Bilbao, SpainSearch for more papers by this authorAbstract
An industrial Cu-based low-temperature water-gas shift (LTWGS) reactor, subject to deactivation by irreversible chlorine adsorption, has been modeled and optimized. Both the chlorine adsorption kinetics and deactivation kinetics were assumed first order to chlorine partial pressure, and the rate constants were considered independent of temperature. The Efficient Production (EP) method has been used to compute the reactor production until the outlet CO conversion decays below a permissible minimum level. Two alternative strategies for the inlet temperature have been used to maximize the EP: constant and time-variable. Compared to the EP obtained for the optimum constant inlet temperatures, EP resulting from the use of the optimum time-variable inlet temperature sequence were higher, affording important energy savings. Furthermore, a sensitivity study with respect to most influential operational variables, such as inlet total flow rate, steam-to-gas ratio, pressure, and concentrations of chlorine, hydrogen, carbon monoxide, and inert content, was carried out. © 2005 American Institute of Chemical Engineers AIChE J, 2005
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