High-Pressure Volumetric Analyzer
Pressure ranges from high vacuum to 100 or 200 bar
Broad temperature capability from cryogenic to 500°C
Fully automated analysis
MicroActive interactive software for data reduction
The HPVA II uses the static volumetric method to obtain high pressure adsorption and desorption isotherms utilizing gases such as hydrogen, methane, and carbon dioxide. Analyze a variety of materials including MOFs, zeolites and microporous carbons using just a few milligrams of sample. Obtain a better understanding of applications such as hydrogen storage, carbon dioxide sequestration, fuel cells and batteries, and hydrocarbon traps.
Features and Benefits:
Single port, or four sample ports with simultaneous analysis
Typical adsorbates such as nitrogen, hydrogen, methane, argon, oxygen, and carbon dioxide
Software includes NIST REFPROP
Excellent control of sample temperature using a recirculating bath, cryogen dewar, cryostat or furnace
Manifold temperature controlled with heater for stability and accuracy
Manifold
All the valves in the manifold are pneumatically operated high-pressure valves. All valve connections are made with heavy wall 316L stainless-steel, and are either welded or use VCR or VCO connections. All gas lines are fitted with 2 micron in-line filters. The manifold is leak-tested to 10-9 cm3 atm/sec.
Depending on the maximum operational pressure of the unit, the transducer is either a capacitance manometer-type (MKS Baratron) or an electronic Bourdon gauge-type (Mensor). In both cases, connections are made via VCR connectors.
Consists of a 5-CFM mechanical pump and Pirani vacuum gauge. Turbo or Molecular Drag pump optional.