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Thermophysical Property Measurement on Chemically Reacting Systems-a Case Study.

Thomas J Bruno1, Gerald C Straty1

  • 1National Bureau of Standards, Boulder, CO 80303.

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|August 4, 2021
PubMed
Summary
This summary is machine-generated.

This study introduces methods to account for chemical reactions during high-temperature, high-pressure thermophysical property measurements. These techniques provide more realistic data by considering chemical changes, as demonstrated with methanol system experiments.

Keywords:
chemically reacting systemsdecompositionhigh temperaturemethanolthermophysical properties

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Area of Science:

  • Chemical Engineering
  • Materials Science
  • Physical Chemistry

Background:

  • Accurate thermophysical property data is crucial for industrial processes.
  • Chemical reactions and decomposition can significantly alter measurements at high temperatures and pressures.
  • Existing methods may not adequately account for these chemical changes.

Purpose of the Study:

  • To present experimental approaches for managing chemical reactions during thermophysical property measurements.
  • To develop equipment capable of handling high temperature and high pressure conditions with chemical reactivity.
  • To improve the accuracy and realism of thermophysical property data by incorporating chemical change considerations.

Main Methods:

  • Design and construction of specialized experimental equipment.
  • Implementation of techniques to monitor and control chemical reactions in situ.
  • Detailed analysis of thermophysical property data with explicit consideration of chemical transformations.

Main Results:

  • Demonstrated feasibility of conducting thermophysical property measurements under conditions prone to chemical reactions.
  • Developed a framework for interpreting data in the context of concurrent chemical changes.
  • Successfully applied the methods to the methanol system, yielding more realistic property data.

Conclusions:

  • Experimental approaches accounting for chemical reactions enhance the reliability of thermophysical property data.
  • The developed equipment and methods are vital for accurate measurements at extreme conditions.
  • Understanding chemical changes is essential for realistic thermophysical property assessment.