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high pressure h2 adsorption isotherm for rare earth
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Expiry date: Long Effective
last update: 2017-11-27 14:39

H-Sorb 2600 high pressure gas adsorption volumetric principle analyzer introduction

Gas sorption 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 sorption 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 H-Sorb 2600 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 Gold APP Instruments company dedicated and patented 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 points’ 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.

Gold APP Instruments high pressure and high temperature gas sorption analyzer H-Sorb 2600 adopts static volumetric principle to determine adsorption and desorption isotherms under high pressure (atmospheric to 200Bar) and high temperature (atmospheric to 500℃) with a stainless steel VCR manifolds system, fully automated operation can control system and multi calculation methods, all these guarantee H-Sorb 2600 to produce a highly repeatibility and highly precision analysis data.


H-Sorb 2600 high pressure gas adsorption volumetric principle analyzer parameters

  1. Analysis Method: static volumetric principle, high pressure gas sorption principle
  2. Versatility: adsorption/desorption isotherms measurement (atmospheric to 500℃), Gibbs supercritical adsorption measurement
  3. Data Reduction: Langmuir model regression isotherm, PCT(Pressure-Composition-Temperature) or PCI (Pressure-Composition-Isotherm) diagram/curve/isotherm measurement, 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
  5. Accuracy: repeatability errors <3%
  6. Temperature Range: cryogenic to 500℃, accuracy±0.1℃
  7. Sample Ports: two samples analyzing and two degassing, stainless-steel micro welding sample cells, software integrated temperature PID adjustment
  8. Transducer Accuracy: imported high precision transmitter, accuracy can reach 0.05% of F.S. (full-scale), long-duration usage stability is 0.025% of F.S.
  9. Ultimate Vacuum: 4x10-2 Pa (3x10-4 Torr), molecular pump system (1x10-6 Pa) is optional
  10. Adsorbate Gas: high purity nitrogen, CO2 or others (Ar, Kr, H2, CH4 etc.)
  11. Data Acquisition: high-precision and high integration data acquisition modules, minimal error, strong anti-interference ability
  12. Specifications: Height 22.05 inches (56cm)* Width 20.87 inches (53cm)*Depth 23.62 inches (60cm); 132 pound (60kg); 220V/5A


H-Sorb 2600 high pressure gas adsorption volumetric principle analyzer features:

  1. Control System: imported VCR interface high pressure pneumatic valve can realize auto on-off within 200Bar, sealing performance is top to 1x10-10 Pa.m3/s, can be used more than 500 million times; programmable logic controller (PLC) system, high integration and sound anti-interference, improve stability and prolong life
  2. Analysis Management: parameters be set by Gold APP Instruments software, fully automated, achieved unattended operation at night; H-Sorb mode is available for accurate control gas charging pressure points, gain ideal data points
  3. Manifold System: imported 316L stainless steel thick-walled manifolds, micro welding sealing can reduce dead space largely; metal VCR connection is convenient for installation and uninstallation
  4. Safety Measures: H-Sorb asymptotic technology realizes auto gas-charging and degassing, prevents high pressure dangers caused by artificial misoperation, and also minimizes large differential pressure’s impact to pressure transducer



Our policy of continuous development may cause the information and specifications contained herein to change without notice or liability.


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