EASY-H 2210 & 2420 High Temperature Hydrogen Storage Gas Adsorption Analyzer

EASY-H 2210 and EASY-H 2420 high-pressure and high-temperature gas adsorption analyzer are high-performance adsorption and desorption isotherms testing instruments independently developed by CIQTEK, which adopts the static volumetric method.

Category: BET surface area analysers (porosimeters) Tags: BET analysis, porosimetry, CIQTEK, gas adsorption

Description

The range of isothermal temperatures and pressures can be tested to meet the needs of many research fields. The product has the high-temperature and high-pressure adsorption testing function and a unique PCT isotherm and hydrogen absorption and desorption pressure platform, which can be widely used in rare earth alloy material hydrogen storage industry, shale gas, and coalbed methane adsorption research, petroleum exploration and gas separation and other fields; it is also important for understanding the adsorption performance of some adsorption materials such as catalysts, molecular sieves, and activated carbon, the research of fuel cells, carbon nanotubes, and graphene.

Key Performance Indicators

Test principle

Static volumetric method

Main functions

Adsorption/desorption isotherms measurement at any temperature from room temperature to 550°C (1022°F), Gibbs supercritical adsorption measurement; Gas adsorption and desorption rate measurement (i.e. adsorption desorption kinetics); PCT isotherm measurement, TPD temperature programmed desorption and hydrogen discharge temperature platform measurement, hydrogen absorption and discharge pressure platform measurement, hydrogen absorption and discharge cycle experiment (fatigue test); Coal adsorption and analytical capacity measurement, adsorption and resolution rate measurement; Gas adsorption constant a and b values; Customizable coal simulation constant pressure adsorption and desorption capacity measurement function.

Test accuracy

Repeatability error is less than ±3%

Test temperature

Room temperature to 550°C (1022°F) (higher temperature can be customized); -196°C (-320.8°F) to room temperature (optional for low temperature test function module).

Temperature control

The temperature control range can reach any temperature from room temperature to 550℃(1022°F), with a temperature control accuracy of 0.1℃(32.18°F);
The software integrates the temperature PID control function, which can realize the precise control of any multi-stage heating rate;
The temperature control process is set and executed automatically through the software interface, without the need for an external thermometer, which eliminates the tedious manual operation and possible misoperation of multi-stage temperature control and improves the automation of the instrument.

Test pressure

Continuous adsorption and desorption in the pressure range of vacuum ~ 200 Bar；The number of experimental equilibrium pressure points and pressure value can be flexibly set by software.

Date processing

Langmuir model regression isotherm, Langmuir maximum adsorption constant L and adsorption pressure constant B measurement (a and b values of coal adsorption); Langmuir correction model loading-ratio correlation regression (LCR) isotherm; three-parameter Langmuir regression isotherm.

Sample numbers

For EASY-H 2210: Two samples tested alternately and two of the analysis ports and two of the analysis ports can perform cycle test /TPD test/hydrogen absorption and desorption kinetics tests; Two Samples’ degassing treatment.
For EASY-H 2420: Four analysis ports and two of the analysis ports can perform cycle test /TPD test/hydrogen absorption and desorption kinetics tests.

Sample tube

Standard 10mL stainless steel micro welding sample tube. Sample tubes of other volumes can be customized upon request.

Test gas

High purity nitrogen, CO₂ or others (Ar, Kr, H₂, CH_4, etc. optional)

Pipeline structure

316L stainless steel thick-walled pipeline, high-pressure micro-welded pipeline system, the main pipeline using micro-welding technology to seal the connection, effectively reduce the dead volume space, and improve test accuracy;
All-metal VCR connection, safe and reliable, and easy to install or remove the pipeline connection.

Vacuum pump

Two-stage vacuum pump, optional extended molecular pump.

Control system

The high-pressure pneumatic valve with a VCR interface can realize automatic on/off control within the pressure range of 200 Bar, sealability is up to 1×10^-10 Pa.m³/s, service life is up to 5 million times;
The programmable logic controller system with high integration and strong anti-interference ability improves the stability and service life of the instrument.

Protective measures

Equipped with the external protection door, completely eliminate the high-temperature injury to the experimental operator. More importantly, it effectively reduces the impact of external airflow changes on the test, greatly improving the test stability and accuracy of the instrument.

Safety measures

The original EASY-H progressive inflation and exhausting technology can realize automatic inflation and exhausting, safe and reliable, eliminating the danger of manual operation of high-pressure gas and reducing the damage caused by large differential pressure shock to the pressure sensor.