Automatic Ultra High Pressure Gas Sorption Analyzer Used in High Pressure Adsorption Research 

Product description

Ultra-high pressure + full oil bath configuration, 0-50MPa, 0-69MPa optional, temperature range -10℃~140℃, 1/2 number of analysis positions is optional.

"Full oil bath" refers to valves, pipelines, pressure sensor sample pools and other gas system immersed in oil bath constant temperature, so that the constant temperature accuracy is an order of magnitude higher than that of air bath constant temperature, especially suitable for "high pressure" of shale coal rock above 50MPa , high temperature, low adsorption capacity" adsorption characteristics evaluation.

Test principle

After the sample is placed in the sample tube, it will first be filled with an inert gas for calibration (such as helium) to calibrate the volume occupied by the sample and the remaining free space volume (dead volume) of the sample tube, and then a certain amount of adsorbate The gas is filled into the sample tube (injecting gas), and the software will automatically record the adsorption amount under the pressure value at this time when the adsorption is balanced. This operation is then automatically repeated until the desired maximum pressure value is reached. We plotted the pressure value corresponding to the adsorption amount to obtain the adsorption isotherm.

For some samples, the adsorption capacity at different temperatures is completely different. At this time, we can test the change of the gas adsorption capacity of the sample at different temperatures according to the actual needs of users.

For all these complex operations, Best BSD-PH series high temperature and high pressure gas adsorption instrument has been fully automatic, and it can automatically process complex data models to evaluate the high temperature and high pressure adsorption performance of samples.

 Main function

a. Static volumetric high-pressure gas adsorption;

b. High temperature and high pressure gas adsorption and desorption isotherm test;

c. PCT adsorption-desorption curve, adsorption constant;

d. Research on shale gas and coalbed methane reserve evaluation;

e. Hydrogen storage PCT, hydrogen absorption and desorption cycle test;

f. Research on adsorption properties of porous materials;

Optional features:

a. Atmospheric pressure desorption rate test;

b. Constant pressure adsorption rate test;

c. Programmed temperature desorption test;

d. High-pressure volumetric multi-component adsorption test;

Main parameter

a. Test accuracy: repeatability error is less than ±2%;

b. Pressure range: from high vacuum to the highest 690bar;

c. Temperature range: -196°C to 900°C;

d. Safety: The interior of the instrument has been tested by high pressure to ensure the airtightness of the instrument. At the same time, there is a built-in combustible gas alarm, and the gas alarm linkage system is optional;

e. Pressure accuracy: Imported high-precision pressure sensor, the accuracy reaches 0.01% FS, and the long-term use stability is 0.025% FS;

f. Constant temperature of the instrument (air bath): The internal temperature of the instrument is fully constant, and the branches, valves and air sources are in the same air bath environment. The constant temperature is 40.0°C, and the temperature control accuracy is ±0.1°C;

Data report