SciTech Connect

Title: Aqueous electrolyte modeling in ASPEN PLUS{trademark}

Aqueous electrolyte modeling in ASPEN PLUS{trademark} The presence of electrolytes in aqueous solutions has long been recognized as contributing to significant departures from thermodynamic ideality. The presence of ions in process streams can greatly add to the difficulty of predicting process behavior. The difficulties are increased as temperatures and pressures within a process are elevated. Because many chemical companies now model their processes with chemical process simulators it is important that such codes be able to accurately model electrolyte behavior under a variety of conditions. Here the authors examine the electrolyte modeling capability of ASPEN PLUS{trademark}, a widely used simulator. Specifically, efforts to model alkali metal halide and sulfate systems are presented. The authors show conditions for which the models within the code work adequately and how they might be improved for conditions where the simulator models fail.
Authors: ; ; ; ;
Publication Date:
OSTI Identifier:OSTI ID: 10120658
Report Number(s):CONF-9409219--7
ON: DE95007008; TRN: 95:002283
DOE Contract Number:AC05-84OR21400
Resource Type:Conference
Resource Relation:Conference: 12. International conference on properties of water and steam,Orlando, FL (United States),11-16 Sep 1994; Other Information: DN: Includes vugraphs; PBD: [1995]
Research Org:Oak Ridge National Lab., TN (United States)
Sponsoring Org:USDOE, Washington, DC (United States)
Country of Publication:United States
Language:English
Subject: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ELECTROLYTES; MATHEMATICAL MODELS; COMPUTER CODES; ALKALI METAL COMPOUNDS; HALIDES; SULFATES; AQUEOUS SOLUTIONS; THERMODYNAMIC PROPERTIES 400201; CHEMICAL AND PHYSICOCHEMICAL PROPERTIES