Izvorni znanstveni članak
Modeling, Simulation and Control of a Tubular Fixed-bed Dimethyl Ether Reactor
E. Yasari
; Department of Chemical & Petroleum Engineering, Sharif University of Technology, P. O. Box 11365-9465, Tehran, Iran
M. Shahrokhi
; Department of Chemical & Petroleum Engineering, Sharif University of Technology, P. O. Box 11365-9465, Tehran, Iran
H. Abedini
; Department of Polymerization Engineering, Iranian Polymer and Petrochemical Institute, Tehran, Iran
Sažetak
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.
Ključne riječi
Dimethyl ether; dynamic modelling; optimization; fixed bed reactor
Hrčak ID:
62711
URI
Datum izdavanja:
27.12.2010.
Posjeta: 3.315 *