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A High Temperature, High Pressure Reaction-Screening Apparatus.

Thomas J Bruno1, Gretchen L Hume1

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

Journal of Research of the National Bureau of Standards (1977)
|September 27, 2021
PubMed
Summary
This summary is machine-generated.

This study introduces a new apparatus for assessing chemical decomposition in fluids under extreme high temperature and high pressure. This tool screens fluid systems before conducting pressure-volume-temperature (PVT) or vapor-liquid equilibrium (VLE) experiments.

Keywords:
decompositionhigh pressurehigh temperaturereactions

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Area of Science:

  • Chemical Engineering
  • Materials Science
  • Thermodynamics

Background:

  • Accurate assessment of fluid stability under severe conditions is crucial for process design.
  • Existing methods may not adequately screen fluid behavior before complex experiments like PVT or VLE.
  • High temperature and high pressure environments pose significant challenges for fluid analysis.

Purpose of the Study:

  • To describe a novel apparatus designed for evaluating chemical decomposition of fluids.
  • To enable pre-screening of fluid systems under conditions mimicking PVT or VLE experiments.
  • To ensure fluid stability and predict behavior under extreme operational parameters.

Main Methods:

  • Design and construction of a specialized high temperature, high pressure reactor.
  • Controlled maintenance of fluids at predetermined experimental temperature and pressure for specific residence times.
  • On-line and off-line sampling for chemical analysis using gas chromatography and other methods.

Main Results:

  • The apparatus successfully allows for the assessment of chemical decomposition extent.
  • Residence times in the reactor are comparable to those in subsequent PVT or VLE experiments.
  • Fluid samples can be analyzed at regular intervals or collected for detailed characterization.

Conclusions:

  • The developed apparatus provides a reliable method for screening fluid systems under severe conditions.
  • This pre-screening capability enhances the efficiency and accuracy of PVT and VLE experiments.
  • The apparatus facilitates a better understanding of fluid stability and decomposition pathways.