Conceptual model and evaluation of generated power and emissions in an IGCC plant
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This work develops a design and operation support tool for an Integrated Gasification Combined Cycle (IGCC) power plant, which allows the efficiency and environmental issues of alternative process designs and feedstock to be assessed. The study is based on a conceptual model of an IGCC plant, validated with data from the ELCOGAS power plant in Spain. The layout of the model includes an Air Separation Unit (ASU), a Pressurized Entrained Flow (PRENFLO) gasifier, a series of purification gas units (venturi scrubber, sour water steam stripper, COS hydrolysis reactor, MDEA absorber columns and a sulphur recovery Claus plant), a Heat Recovery Steam Generator (HRSG) and a Combined Cycle (CC) system. It comprises steady state models. One of the purposes of this work is to analyze the feasibility of coal co-gasification using waste materials; specifically petcoke and olive pomace (orujillo) are considered here. The model has been developed in Aspen Hysys. It uses electrolyte models that have been implemented in Aspen Plus which are connected to Aspen Hysys bymeans of Artificial Neural Networks (ANNs) models. Results of the model’s, gas composition and generated power, are in agreement with the industrial data.
CitationPérez, M. [et al.]. Conceptual model and evaluation of generated power and emissions in an IGCC plant. "Energy", 12 Maig 2009, vol. 34, núm. 10, p. 1721-1732.
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