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An experimentally determined configuration for Simulated Moving Beds as a separative-reactor in gas phase

Pakseresht, S ; Sharif University of Technology | 2002

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  1. Type of Document: Article
  2. Publisher: Sharif University of Technology , 2002
  3. Abstract:
  4. One of the most attractive features of Simulated Moving Beds (SMBs) is their ability to perform reaction and separation simultaneously in order to increase reaction yields. In this paper, an appropriate configuration for the operation of such systems in gas phase has been presented and to improve the separation efficiency, Pressure Swing Adsorption (PSA) is also employed. Fischer-Tropsch Synthesis (FTS) has been chosen to verify this idea. After preparing the catalyst, choosing appropriate adsorbent and constructing the necessary experimental set up, experiments have been performed to achieve maximum yield of desired products (i.e., ethylene and ethane). Effective variables, such as flow rates of the feed and carrier gas, ratio of reactants in the feed, switching time and the number of reaction and separation columns have been optimized empirically. The results of these experiments show that the combination of PSA and catalytic reaction causes an increase of product yields. Ultimately, experiments performed under optimized conditions demonstrated not only a reduction in consumption of CO by 10 percent but also indicated a rise in production of desired materials by the same amount. In addition, products are split into two extract and raffinate streams where the purity of desired C2 products in the former stream is about 47 percent, which indeed is an improvement over most other previous techniques
  5. Keywords:
  7. Source: Scientia Iranica ; Volume 9, Issue 1 , 2002 , Pages 74-85 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_2728.html