Equipment and method for measuring sorption isotherms of gases at high pressures and supercritical fluids.

摘要

Equipment and method for measuring sorption isotherms of gases at high pressures and supercritical fluids. The equipment comprises: a distributor, at least one sample cell, a gas source, a vacuum source, a pressure sensor to measure manifold pressure and the sample cell, a set of conduits and shutoff valves which connect parts of the equipment mentioned.; The method described allows obtaining accurately the amount of gas sorbed by a sample to pressures of several thousand atmospheres over a wide temperature range considering the state of the gas can not be well described by the law of ideal gas, which may have gas sorption calibration in determining the volume of the sample cell and / or that it can not be entirely temperature analysis.