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Laboratory System for Phase Equilibrium Measurements

Gas Solubility High Measurement Accuracy Power‑to‑X Substance Systems Thermodynamic Property Measurements Vapour–Liquid Equilibrium

This laboratory system is designed for the precise determination of phase equilibria, in particular the solubility of specific gases such as carbon dioxide, hydrogen, and methane in various liquids.

For this purpose, a flat stainless‑steel plate reactor with a volume of 30 mL can be charged with the desired individual phases and operated over a temperature range from ambient temperature up to 400 °C.

Operating pressures from atmospheric pressure up to 60 bar(a) can be realised, enabling accurate vapour–liquid equilibrium measurements under industrially relevant conditions.

 

Design Parameters

  • Design temperature: 450 °C
  • Design pressure: 80 bar

 

Reactor and Measurement Features

  • Stainless‑steel plate reactor
    • Inner diameter: approx. 85 mm
    • Height: approx. 10 mm
  • High‑temperature circulating air furnace
  • Highly accurate liquid dosing
    • Using a high‑pressure syringe pump
  • Precision pressure instrumentation
    • Total error: ±0.01 % of full scale

 

Automation and Control

  • Process control system: Siemens S7‑1500 with operator panel