MODELLING STUDIES OF DEHYDROGENATION REACTIONS IN PRESSURE SWING REACTOR
Öz
Pressure Swing Adsorption (PSA) is a widely used process for the separation of gas mixtures. In this process fixed beds are used to retain selectively and reversibly adsorption of specific components of the feed mixture. The main steps of PSA common to almost all cycles are the pressurization, product release and depressurization steps. The separation is improved by including additional steps such as purge and backfill steps. In this process the beds which are operated out of phase causing a continuous supply of product from each bed are regenerated in part by the reduction of the total pressure. A novel reactor which combines simultaneous pressure swing separation and reaction of a gas mixture is called a Pressure Swing Reactor (PSR). The design is based on a conventional two-bed PSA process in which most of the usual cycle configurations for operation are possible. Each bed contains a mixture of an active catalyst for reaction and a selective adsorbent for adsorption of one or more of the reaction species. In this work a mathematical model of a PSR for dehydrogenation type of a reaction which takes into account a linear driving force between the adsorbed and gas phases is presented. By the solution of the model equations for a simple cycle, the concentration profiles of the components with respect to time at various points along the length of the reactor were obtained. The expected variations in concentration were obtained for the pressurization, product release and the depressurization steps.
Anahtar Kelimeler
Ayrıntılar
Birincil Dil
İngilizce
Konular
Mimarlık
Bölüm
Araştırma Makalesi
Yazarlar
Türkan Kopaç
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Yayımlanma Tarihi
1 Mart 2013
Gönderilme Tarihi
26 Haziran 2014
Kabul Tarihi
-
Yayımlandığı Sayı
Yıl 1996 Cilt: 11 Sayı: 1