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Modeling, simulation and control of a tubular fixed-bed dimethyl ether reactor

Yasari, E ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. Publisher: 2010
  3. Abstract:
  4. This paper considers the modeling and control of a tubular fixed bed reactor with recycle stream for dimethyl ether (DME) production. For simulation purposes, a pseudo homogeneous model has been developed. By reactor simulation under steady state condition, effects of parameters such as feed rate, pressure and shell temperature are investigated. Using the steady state model, an optimizer that maximizes the reactor yield has been developed. For cooling the reactor, a steam drum that uses heat of reactions to produce steam was coupled with the reactor. Through dynamic simulation, system open loop response was obtained and two control loops were considered for controlling the reactor temperature and steam drum level. An optimizer that takes into account the feed variations was incorporated into the control system to maximize the DME production rate
  5. Keywords:
  6. Dimethyl ether ; Control loop ; Dimethyl ether reactors ; Dimethyl ethers ; Dynamic modelling ; Dynamic simulation ; Feed-rates ; Fixed bed reactor ; Fixed-bed ; Heat of reaction ; Homogeneous models ; Modeling and control ; Open loops ; Optimizers ; Production rates ; Reactor simulation ; Reactor temperatures ; Recycle stream ; Shell temperatures ; Steady-state condition ; Steady-state models ; Steam drums ; Tubular fixed bed reactors ; Chemical reactors ; Computer simulation ; Ethers ; Fuels ; Optimization ; Organic compounds ; Steam ; Coupled circuits
  7. Source: Chemical and Biochemical Engineering Quarterly ; Volume 24, Issue 4 , 2010 , Pages 415-423 ; 03529568 (ISSN)