Oxygen analyzer Micromeritics HPVA II

hydrocarbonargonnitrogen

The Micromeritics HPVA II (High-Pressure Volumetric Analyzer) 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 The Micromeritics HPVA II offers four methods of sample temperature control: Refrigerated/heated recirculation vessel (customer provides temperature control bath) Four-liter, stainless-steel dewar for liquid cryogen Furnace allows for experiments ranging up to 500 °C Cryostat can precisely control sample temperatures from ambient conditions to 30 K System schematic Manifold: all the valves in the manifold are pneumatically operated, high-pressure valves with Kel-F® seats. Valve tubing is constructed with heavy wall, 316L stainless steel and is attached via a VCR connection or welded. The temperature of the insulated manifold region is stabilized using a heater controlled by an adjustable PID controller. Pressure transducers: two transducers are used to precisely measure the system pressure. A 1000-torr transducer is used to accurately monitor pressures below 1 atmosphere and is protected from high pressure with an isolation valve and a cracking valve that relieves to the vent. Servo valves: the servo valves are used to automatically regulate the flow of gas in the manifold to the vent and vacuum.