BENCH FOR MEASURING ADSORPTION OF GASES AND VAPORS BY GRAVIMETRIC METHOD AND METHOD OF ITS OPERATION Russian patent published in 2020 - IPC G01N7/04 G01N5/02 

FIELD: measuring equipment.

SUBSTANCE: present invention relates to measurement equipment and experimental study of physical and chemical properties of porous materials and can be used for analysis of structure and adsorption of porous materials. Test bench for adsorption measurement by gravimetric method includes scales-comparators, pressure measurement devices, devices for control of vacuum, pressure vessel with gas, pressure reduction system, system for calibration of pressure measurement instruments, container with analyzed liquid substance, interconnected by gas main lines connected to exhaust station containing main vacuum pump and nitrogen trap, wherein to assembly of gas lines connecting comparator scales, pressure measuring devices, device for control of vacuum, connection with pressure vessel with gas is added through pressure reduction system and connection with calibration system of pressure measuring devices, into assembly of gas lines connecting exhaust station, container with analyzed liquid substance, counter pressure of pressure measuring devices and balance comparators, calibrated capacity of known volume is added, pressure measuring devices and calibrated capacity of known volume are placed in thermostat, which maintains temperature above ambient temperature by not more than 20 K.

EFFECT: technical result of the invention is to increase the stand reliability and measurement accuracy, as well as to improve the adsorbent regeneration quality.

6 cl, 2 dwg