000133676 001__ 133676
000133676 005__ 20181203021436.0
000133676 0247_ $$2doi$$a10.2533/000942902777680658
000133676 022__ $$a0009-4293
000133676 02470 $$2DAR$$a126
000133676 02470 $$2ISI$$a000175563100006
000133676 037__ $$aARTICLE
000133676 245__ $$aSupercritical calorimetry: an emerging field
000133676 260__ $$bSchweizerische Chemische Gesellschaft$$c2002
000133676 269__ $$a2002
000133676 336__ $$aJournal Articles
000133676 500__ $$aCAN 136:375533, 69-3, Thermodynamics, Thermochemistry, and Thermal Properties, Switz., Journal, 0009-4293, written in English., 124-38-9 (Carbon dioxide) Role: PRP (Properties) (supercrit. calorimetry used in measuring heat capacity of supercrit. carbon dioxide)
000133676 520__ $$aCalorimetry (adiabatic, isothermal, differential, oscillating or acoustic) is generally based on heat-flow measurements of the studied system. Most of its applications are dedicated to kinetic-parameter detn., safety studies and process optimization, phase equil. and phase transition studies. Heat flow calorimetry on the lab. scale is currently limited to low viscosity fluids. An emerging new field is concerned with the use of calorimetry in the presence of supercrit. fluids as solvent reaction, which will be named supercrit. calorimetry. Supercrit. carbon dioxide (CO2s.c.) represents an increasingly interesting media for a wide variety of reactions. To fulfill this need, a special supercrit. calorimeter has been developed in collaboration with Mettler-Toledo, Schwerzenbach, CH and some preliminary results are presented. This paper explores supercrit. calorimetry applied to the intrinsic properties of carbon dioxide in the liq., gas and esp. supercrit. phase as well as applications and theory related to reaction calorimetry. The CO2s.c. heat capacity (cp) is measured over the range of 33-112 DegC and 77-206 bar using a reaction calorimeter (RC1e, Mettler-Toledo) coupled with a high-pressure HP350 metallic reactor. Measured values are compared to theor. values obtained from Wagner and Span's equation of state. 3D representations of the predicted values for heat capacity, d. and sound speed of carbon dioxide in the fluid phase are presented.
000133676 6531_ $$aEquation of state (Wagner and Span's; heat capacity
000133676 6531_ $$ad. and sound speed of carbon dioxide in the fluid phase calcd. using); Density (heat capacity
000133676 6531_ $$ad. and sound speed of carbon dioxide in the fluid phase calcd. using Wagner and Span's equation of state); Calorimetry; Heat capacity; Supercritical fluids (supercrit. calorimetry used in measuring heat capacity of supercrit. carbon dioxide); Sound and Ultrasound (velocity; heat capacity
000133676 6531_ $$ad. and sound speed of carbon dioxide in the fluid phase calcd. using Wagner and Span's equation of state)
000133676 6531_ $$asupercrit calorimetry carbon dioxide heat capacity; sound speed supercrit carbon dioxide
000133676 700__ $$0240483$$g102310$$aLavanchy, Frederic
000133676 700__ $$0241400$$g113402$$aFortini, Sophie
000133676 700__ $$aMeyer, Thierry$$g105841$$0241136
000133676 773__ $$j56$$tChimia$$k4$$q126-131
000133676 909C0 $$xU10177$$0252137$$pGSCP
000133676 909CO $$pSB$$particle$$ooai:infoscience.tind.io:133676
000133676 917Z8 $$x104396
000133676 937__ $$aGSCP-ARTICLE-2002-002
000133676 970__ $$a0000000024/GSCP
000133676 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000133676 980__ $$aARTICLE