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Author(s): Teresa Margarida Correia de Poço Mata
Raymond Smith
Douglas Young
Carlos Albino Veiga da Costa
Title: Evaluating the environmental friendliness, economics and energy efficiency of chemical processes : heat integration
Issue Date: 2003
Abstract: The design and improvement of chemical processescan be very challenging. The earlier energy conservation,process economics and environmental aspectsare incorporated into the process development, the easierand less expensive it is to alter the process design. In thiswork different process design alternatives with increasinglevels of energy integration are considered in combinationwith evaluations of the process economics and potentialenvironmental impacts. The example studied is thehydrodealkylation (HDA) of toluene to produce benzene.This study examines the possible fugitive and open emissionsfrom the HDA process, evaluates the potentialenvironmental impacts and the process economics considering different process design alternatives. Results ofthis work show that there are tradeoffs in the evaluation ofpotential environmental impacts. As the level of energyintegration increases process fugitive emissions increasewhile energy generation impacts decrease. Similar tradeoffsoccur for economic evaluations, where the capital andoperating costs associated with heat integration could beoptimised. From the example designs considered here, anintermediate amount of energy integration produces themost economically beneficial and environmentally friendlyprocess.
Subject: Engenharia química, Engenharia química
Chemical engineering, Chemical engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia química
Engineering and technology::Chemical engineering
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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