METHOD FOR DETERMINING THE PHYSICO-CHEMICAL PROPERTIES OF THE ABSORBER Russian patent published in 2022 - IPC G01N15/08 

FIELD: physical chemistry.

SUBSTANCE: invention relates to the field of research of the physical and chemical properties of absorbers and is intended to study the catalytic, adsorption and regeneration properties of materials. The method for determining the physico-chemical properties of the absorber includes passing a gas mixture (GM) through the studied absorber, subsequent determination of the physico-chemical properties of the studied absorber, while the GM with the specified concentrations of components is pre-formed in an airtight container, where the individual gas components of the formed GM are sent from individual gas sources through electromagnetic valves of the gas and liquid component flow regulator after these components’ passing through the injector, the formed GM of components under pressure is first sent to the gas pipeline, and then to a container with an absorber, which uses adsorbents and palladium or platinum-based materials recovered from palladium- or platinum-containing compounds, and the determination of the physico-chemical characteristics of the absorber is carried out by analyzing the composition of the GM at the outlet of the container with palladium or platinum-containing adsorbent by chromato-mass spectrometric and gas chromatographic methods, while the adsorption capacity is determined as the difference in the concentrations of organic components of the studied GM measured at the inlet and outlet of the container with the absorber and passed through it for a specified period of time, the regenerative capacity of the absorber is determined by the amount of oxygen released during the catalytic oxidation of hydrogen, the catalytic activity is determined by the time during which the concentration of hydrogen in a container with a volume of no more than 40 dm³ decreases from 3% to 1.5% during catalytic oxidation.

EFFECT: possibility of determining the adsorption capacity, regenerative capacity and catalytic activity of the absorber.

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