博坊在线 hydrogen adsorption analyzer introduction

Gas adsorption analysis is important in many fields of materials, such as energy storage materials, improved catalysts for petrochemical processing, advanced pharmaceuticals and food industries. At present, there is tremendous interest in the development of innovative materials for the transition to renewable energy. The science of gas adsorption has become particularly critical in the advancement of materials for storing fuel gases such as hydrogen or natural gas, as well as for sequestration of greenhouse gases.

The 博坊在线 high pressure gas sorption analyzer adopts the volumetric technique principle which consists of dosing a known amount of gas adsorptive into measurement tubes where lying samples (such as zeolites, carbon nanotubes, rocks, catalysts, activated carbons, molecular sieve, hydrides etc. ) to be analyzed. When samples reach equilibrium with the adsorbate gas (such as hydrogen, methane, carbon dioxide, nitrogen, argon, krypton etc.), detailed and comprehensive final equilibrium pressures will be recorded automated by software. These data are used to calculate the quantity of gas adsorbed by samples.

This measurement procedure automatically repeated by software under given temperature and pressure intervals until finalized the maximum preselected pressure. Finally, each of the equilibrium point volume adsorbed, equilibrium pressure, absolute pressure etc. data are plotted to produce the isotherm. By using the isotherm data, operators can calculate further more information such as Langmuir fitting isotherm, the adsorption rate curve, PCT (pressure-composition-temperature) or PCI (pressure-composition-isotherm) curve etc.

Pressure-Composition Isotherms (PCI) and Pressure-Composition Temperature (PCT) is one of the most informative sorption measurements. The result is a plot of the equilibrium absorbed gas concentration in the material as a function of pressure and temperature.

博坊在线 high pressure and high temperature gas adsorption analyzer 博坊在线 adopts static volumetric principle to determine adsorption and desorption isotherms under high pressure (atmospheric to 200Bar) and high temperature (atmospheric to 500 Celsius) with a stainless steel VCR manifolds system, fully automated operation can control system and multi calculation methods, all these guarantee 博坊在线 to produce a highly repeatability and highly precision analysis data.

博坊在线 hydrogen adsorption analyzer specifications

1. Analysis Method: static volumetric high pressure adsorption principle
2. Versatility: adsorption/desorption isotherms measurement (atmospheric to 500 Celsius), Gibbs supercritical adsorption measurement
3. Data Reduction: Langmuir model regression isotherm, PCT(Pressure-Composition-Temperature) or PCI (Pressure-Composition-Isotherm) diagram/curve/isotherm measurement, TPD(temperature program desorption), Langmuir maximum adsorption constant L and adsorption pressure constant B measurement; Langmuir correction model loading-ratio correlation regression (LCR) isotherm; Ono-Kondo (OK) lattice model isotherm regression; adsorptive gas density and vapor-liquid equilibrium accuracy calculation under different pressures and temperatures
4. Measuring Ranges: continuous adsorption and desorption measurement from atmospheric to 200Bar pressure (400Bar option)
5. Accuracy: repeatability errors <3%
6. Temperature Range: cryogenic to 500 Celsius (600 Celsius option), accuracy within 0.1 Celsius
7. Sample Ports: 2 samples analyzing and 2 degassing ( 4 ports option), stainless-steel micro welding sample tubes, software integrated temperature PID adjustment
8. Transducer Accuracy: imported high precision transducers, accuracy can reach 0.05% of F.S. (full-scale), long-duration usage stability is 0.025% of F.S.
9. Ultimate Vacuum: mechanical pump 4x10^-2 Pa (3x10^-4 Torr), molecular turbo pump system (1x10^-6 Pa) is optional
10. Adsorbate Gas: high purity CO2, H2, CH4, N2 or others
11. Data Acquisition: high-precision and high integration data acquisition modules, minimal error, strong anti-interference ability
12. Specifications: Height 22.05 inches (56cm) X Width 20.87 inches (53cm) X Depth 23.62 inches (60cm); 132 pound (60kg); 220V/5A

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