Modeling of Single Channel Monolithic Reactor with The Single pass Flow Operation System

Abstract

In the following sections, the recent published studies on modeling and simulation of monolith reactors were reviewed. Mass transfer, and reaction kinetics were achieved by establishing mass, energy and momentum balance equations. The model equations were solved simultaneously. Such a model can be useful for studying the impact of changes of superficial gas and liquid velocities on reaction rate within the slug flow regime. The reaction system used is the hydrogenation α-methyl styrene (AMS) to cumene over a palladium on γ-alumina catalyst, It is a well known system used to understand three-phase reactor performance under mass transfer limited condition by the gas mass transfer through the liquid film at the catalyst surface to the active sites. The effects of superficial gas and liquid velocities on reaction rate were studied with the range of 10 cm/s ≤ UL ≤ 30 cm/s, and 10 cm/s ≤ UG ≤ 30 cm/s. The flow pattern for all these range of velocities was in the Taylor flow pattern. ‫ﺍﻟﻭﺍﺤﺩ‬ ‫ﺍﻟﻤﻤﺭ‬ ‫ﺠﺭﻴﺎﻥ‬ ‫ﺒﻨﻅﺎﻡ‬ ‫ﺍﻟﻘﻨﺎﺓ‬ ‫ﻭﺤﻴﺩ‬ ‫ﺍﻟﻤﻭﻨﻭﻟﻭﺜﻲ‬ ‫ﺍﻟﻤﻔﺎﻋل‬ ‫ﻨﻤﺫﺠﺔ‬ ‫ﺃﻟﺨﻼﺼﻪ‬ ‫ﻤﻔﺎﻋﻼﺕ‬ ‫ﻭﺘﻤﺜﻴل‬ ‫ﻨﻤﺫﺠﺔ‬ ‫ﻋﻥ‬ ‫ﺍﻟﺤﺩﻴﺜﻪ‬ ‫ﺍﻟﻤﻨﺸﻭﺭﻩ‬ ‫ﻟﻠﺩﺭﺍﺴﺎﺕ‬ ‫ﻋﺭﺽ‬ ‫ﺍﺠﺭﺍﺀ‬ ‫ﺘﻡ‬ ‫ﺍﻟﺩﺭﺍﺴﻪ‬ ‫ﻫﺫﻩ‬ ‫ﻓﻲ‬ ‫ﺍﻟﻤﻭﻨﻭﻟﺙ‬. ‫ﻭ‬ ‫ﺍﻟﻜﺘﻠﻪ‬ ‫ﺍﻨﺘﻘﺎل‬ ‫ﺍﻟﻜﺘﻠﻪ‬ ‫ﻤﻭﺍﺯﻨﺔ‬ ‫ﻤﻌﺎﺩﻻﺕ‬ ‫ﺨﻼل‬ ‫ﻤﻥ‬ ‫ﺍﻟﻴﻬﺎ‬ ‫ﺍﻟﺘﻭﺼل‬ ‫ﻴﻤﻜﻥ‬ ‫ﺍﻟﺘﻔﺎﻋل‬ ‫ﺤﺭﻜﻴﺔ‬ , ‫ﻭﺍﻟﺯﺨﻡ‬ ‫ﺍﻟﺤﺭﺍﺭﺓ‬. ‫ﺍﻨﻲ‬ ‫ﺒﺸﻜل‬ ‫ﺍﻟﻤﻭﺩﻴل‬ ‫ﻤﻌﺎﺩﻻﺕ‬ ‫ﺤﻠﺕ‬ , ‫ﻟﺩﺭﺍﺴﺔ‬ ‫ﻤﻔﻴﺩ‬ ‫ﻴﻜﻭﻥ‬ ‫ﺍﻥ‬ ‫ﻴﻤﻜﻥ‬ ‫ﺍﻟﻨﻤﻭﺫﺝ‬ ‫ﻫﺫﺍ‬ ‫ﻤﺜل‬ ‫ﺘﺩﻓﻕ‬ ‫ﻨﻅﺎﻡ‬ ‫ﻀﻤﻥ‬ ‫ﻭﺍﻟﺴﺎﺌل‬ ‫ﺍﻟﻐﺎﺯ‬ ‫ﺍﻨﺘﻘﺎل‬ ‫ﺴﺭﻋﺔ‬ ‫ﺘﺄﺜﻴﺭ‬ (Slug flow regime). ‫ﺍﻟﻤﺴﺘﺨﺩﻡ‬ ‫ﺍﻟﺘﻔﺎﻋل‬ ‫ﻨﻅﺎﻡ‬ ‫ﻤﺜﻴل‬ ‫ﺍﻟﻔﺎ‬ ‫ﻫﺩﺭﺠﺔ‬ ‫ﻫﻭ‬ ‫ﺴﺘﺎﻴﺭﻴﻥ‬ (AMS) ‫ﺍﻟﻜﻴﻭﻤﻴﻥ‬ ‫ﺍﻟﻰ‬ , ‫ﻜﻌﺎﻤل‬ ‫ﺍﻟﻭﻤﻴﻨﺎ‬ ‫ﺍﻟﻜﺎﻤﺎ‬ ‫ﻋﻠﻰ‬ ‫ﺍﻟﻤﺤﻤل‬ ‫ﺍﻟﺒﻼﺩﻴﻭﻡ‬ ‫ﻓﻭﻕ‬ ‫ﻤﺴﺎﻋﺩ‬ , ‫ﻜﺘﻠﻪ‬ ‫ﺍﻨﺘﻔﺎل‬ ‫ﻅﺭﻭﻑ‬ ‫ﺘﺤﺕ‬ ‫ﺍﻟﻁﻭﺭ‬ ‫ﺜﻼﺜﻴﺔ‬ ‫ﺍﻟﻤﻔﺎﻋﻼﺕ‬ ‫ﺍﺩﺍﺀ‬ ‫ﻟﻔﻬﻡ‬ ‫ﻴﺴﺘﺨﺩﻡ‬ ‫ﺠﻴﺩﺍ‬ ‫ﻤﻌﺭﻭﻑ‬ ‫ﻨﻅﺎﻡ‬ ‫ﺍﻨﻪ‬ ‫ﺍﻟﻔﻌﺎﻟﻪ‬ ‫ﺍﻟﻤﻭﺍﻗﻊ‬ ‫ﺍﻟﻰ‬ ‫ﺍﻟﻤﺴﺎﻋﺩ‬ ‫ﺍﻟﻌﺎﻤل‬ ‫ﺴﻁﺢ‬ ‫ﻋﻠﻰ‬ ‫ﺍﻟﺭﻗﻴﻘﻪ‬ ‫ﺍﻟﺴﺎﺌل‬ ‫ﻁﺒﻘﺔ‬ ‫ﺨﻼل‬ ‫ﺍﻟﻐﺎﺯ‬ ‫ﺒﺎﻨﺘﻘﺎل‬ ‫ﻤﺤﺩﺩﻩ‬. ‫ﺘﺄﺜﻴ‬ ‫ﺭ‬ ‫ﺤﺩﻭﺩ‬ ‫ﻀﻤﻥ‬ ‫ﺩﺭﺍﺴﺘﻬﺎ‬ ‫ﺘﻡ‬ ‫ﺍﻟﺘﻔﺎﻋل‬ ‫ﻤﻌﺩل‬ ‫ﻋﻠﻰ‬ ‫ﻭﺍﻟﺴﺎﺌل‬ ‫ﺍﻟﻐﺎﺯ‬ ‫ﺴﺭﻉ‬ 10 cm/s ≤ UL ≤30 cm/s , ‫ﻭ‬ 10 cm/s ≤ UG ≤30 cm. ‫ﺠ‬ ‫ﻨﻅﺎﻡ‬ ‫ﻫﻭ‬ ‫ﻫﺫﻩ‬ ‫ﺍﻟﺴﺭﻉ‬ ‫ﺤﺩﻭﺩ‬ ‫ﻟﻜل‬ ‫ﺍﻟﺠﺭﻴﺎﻥ‬ ‫ﻨﻭﻉ‬ ‫ﺭﻴﺎﻥ‬ (Taylor Flow Pattern). https://doi.org/10.30684/etj.28.11.12 2412-0758/University of Technology-Iraq, Baghdad, Iraq This is an open access article under the CC BY 4.0 license http://creativecommons.org/licenses/by/4.