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Signor S.,Automation and Process Solutions | Manenti F.,Polytechnic of Milan | Grottoli M.G.,Automation and Process Solutions | Fabbri P.,Automation and Process Solutions | Pierucci S.,Polytechnic of Milan
Industrial and Engineering Chemistry Research | Year: 2010

The paper is aimed at discussing and fixing issues in providing a generalized approach to the simulation of sulfur recovery units (SRUs). The main goal is to get a simulation that is at the same time (i) reasonably detailed and robust to properly characterize SRUs and (ii) so generalized to provide a tool that is not only specific for the case in study. To achieve point (i), standard libraries belonging to commercial process simulators are coupled to specific heuristic relations coming from the industrial experience for modeling the thermal furnace and the catalytic Claus converters; this allows us to infer with a certain reliability those measures that are often missing or unavailable online in these processes. To achieve point (ii), a series of adaptive parameters are filled in the process simulation by making it more flexible and yet preserving all model details. The most recent techniques and numerical methods, to tune the adaptive simulation parameters, are implemented in Visual C++ and interfaced to PRO/II (by SimSci-Esscor) to obtain a robust parameter estimation solved by means of the BzzMath library. At last, the detailed and tuned adaptive simulation is validated along a period of 2 months on a large-scale SRU (TECHNIP-KTI SpA technology) operating in Italy. © 2010 American Chemical Society.

Fabbri P.,Automation and Process Solutions | Signor S.,Automation and Process Solutions | Grazia Grottoli M.,Automation and Process Solutions | Manenti F.,Polytechnic of Milan | And 2 more authors.
Chemical Engineering Transactions | Year: 2010

Amine plants for gas treatment are well-known processes to remove a series of compounds either upstream some plant operations particularly sensitive to these chemical species or before sending to vent/stack a process stream so as to match environmental regulations. There is a long experience in the design of amine plants and in their typical configuration of energy integrated absorber and stripper. Nevertheless, the design and the unit operations of current amine processes directly come from feasibility studies based on steady-state simulations and a series of process control considerations can be pointed out by means of the process dynamic simulation. Copyright © 2010 AIDIC Servizi S.r.l.

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