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Calorimetric Studies of Precipitating Solvent System

Abstract

Calorimetric study of a precipitating solvent system of Potassium-Taurate (KTAU) was performed in the CPA202 calorimeter. Two different experiments were conducted, i.e. heat of absorption of CO2 in KTAU solvent at different conditions (concentration = 1.5 M and 3.0 M), loading up to ∼ 0.8 mol CO2/ mol Taurine and temperature = 25 °C, 40 °C, 80 °C). Moreover, dissolution heats of Taurine/solid were also measured. The result agrees well with the reported data. The procedure developed for the heat of dissolution measurements was verified by measuring heat of dissolution of solid Taurine in water and comparing results with data in literature. The solid formation occurs during the absorption of CO2 in 3.0 M KTAU at low temperatures (25 °C and 40 °C) and at loadings (∼ 0.3 mol CO2/ mol Taurine). The heat of dissolution of the formed solid in pure water is slightly higher than that of Taurine in pure water but less heat is required to dissolve the same solids in unloaded 3.0 M KTAU solution.
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Category

Academic article

Language

English

Author(s)

  • Ardi Hartono
  • Inna Kim
  • Hanna K Knuutila
  • L.V van der Ham
  • Earl Goetheer

Affiliation

  • SINTEF Industry / Process Technology
  • Netherlands Organisation for Applied Scientific Research
  • Norwegian University of Science and Technology

Year

2017

Published in

Energy Procedia

Volume

114

Page(s)

744 - 755

View this publication at Norwegian Research Information Repository