Mathematical model and energy analysis of ethane dehydration in two-layer packed-bed adsorption

作     者：Yadollah Tavan Seyyed Hossein Hosseini Goodarz Ahmadi Martin Olazar 

作者机构：Chemical and Petroleum Engineering DepartmentSharif University of TechnologyAzadi Av.TehranIran Chemical Engineering DepartmentFaculty of EngineeringIlam University69315-516 IlamIran Department of Mechanical and Aeronautical EngineeringClarkson UniversityPotsdamNY 13699-5725USA Department of Chemical EngineeringFaculty of Science and TechnologyUniversity of the Basque CountryP.O.Box 64448080 BilbaoSpain 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2019年第17卷第6期

页      面：33-40页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

主　　题：Molecular sieve Breakthrough Adsorption Ethane dehydration Mathematical model 

摘      要：The 3A zeolites are excellent adsorbents for industrial-scale gas dehydration because of the low energy required for regeneration and ease of operation.A computational study of the dehydration of an industrial feed stream containing ethane and water was performed using an in-house code that included an appropriate equilibrium adsorption *** validated computational model was used to examine the impact of particle size on the process dynamics and the corresponding pressure *** water concentration along the adsorption column was also *** increase the process capacity,the packed adsorption bed was divided into two distinct layers,which were operated with different particle *** length of each layer was determined by a parametric *** best breakthrough time,i.e.,107,800 s,at the allowed pressure drop was obtained when the lengths of the first and second layers were 4.5 and 1 m,*** results showed that the new two-layer adsorption bed could save around 33.8%in total energy requirement in comparison to that of a single bed.