Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/66799
Title: Simulation and multiobjective optimization of an industrial hydrogen plant based on refinery off-gas
Authors: Oh, P.P.
Rangaiah, G.P. 
Ray, A.K. 
Issue Date: 1-May-2002
Source: Oh, P.P.,Rangaiah, G.P.,Ray, A.K. (2002-05-01). Simulation and multiobjective optimization of an industrial hydrogen plant based on refinery off-gas. Industrial and Engineering Chemistry Research 41 (9) : 2248-2261. ScholarBank@NUS Repository.
Abstract: A rigorous model is developed for simulating an existing industrial hydrogen plant based on refinery off-gas, which is made up of liquefied petroleum gas and off-gas from the membrane separation unit in a petroleum refinery. The presence of higher hydrocarbons in the reaction system is accounted for in the model equations for bulk gas and catalyst pellet. The reformer model is validated against three sets of industrial plant data, with good agreement. Thereafter, multiobjective optimization is performed using the nondominated sorting genetic algorithm to predict sets of Pareto-optimal operating conditions for improved performance. For a fixed feed rate of off-gas to the unit, two or three objectives, namely, maximization of product hydrogen and export steam rates and minimization of the heat duty supplied to the steam reformer, are targeted simultaneously. The optimal heat flux profile in the steam reformer is distinct from that predicted for methane feed (Oh, P. P.; Ray, A. K.; Rangaiah, G. P. J. Chem. Eng. Jpn. 2001, 34 (11), 1341. The optimal results obtained are better than industrial operating data.
Source Title: Industrial and Engineering Chemistry Research
URI: http://scholarbank.nus.edu.sg/handle/10635/66799
ISSN: 08885885
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

31
checked on Dec 15, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.