Hydrogen storage adsorber - Huaqiang Electronic Network

EL-C1600N100013-B

L0504-Murata muRata common mode inductor 90Ω 150mA

Hydrogen storage adsorber application

Hydrogen storage adsorber

It is a research-grade instrument specially designed for testing coal. The adsorption and desorption test of hydrogen storage materials requires customization. It can test the total adsorption amount of gas, hydrogen, etc., adsorption constant, especially desorption rate, etc., suitable for coalbed methane, storage. Hydrogen material adsorption, gas research research units and business users. The equipment of our company has been applied to China University of Geosciences, Taiyuan University of Technology, Anhui University of Science and Technology, Shaanxi Coal Group, Shenyang Coal Science Institute and so on.

Hydrogen storage adsorber

It is very important in the fields of carbon dioxide capture, shale gas storage, hydrogen storage industry, oil exploration and gas separation. In addition, for the understanding of adsorption properties of some adsorbent materials such as catalysts, molecular sieves, activated carbon, etc., research on fuel cells, battery flue gas scrubbers and hydrocarbons is crucial.

Hydrogen storage adsorption instrument performance introduction

Test function:

Volumetric method high pressure adsorption, desorption isotherm; gas adsorption constant a, b value;

The amount of desorbed gas;

Desorption rate; adsorption time;

Analysis station:

1 analysis station, 2 independent high temperature vacuum degassing stations, a total of 3 stations;

Test accuracy:

Repeatability error is less than ±2%;

Pressure range:

0-300bar

;

temperature range:

Sample test temperature control from 0 ° C to 300 ° C; optional optional constant temperature water bath, constant temperature oil bath;

temperature control:

The internal gas temperature of the instrument is constant, and the constant temperature range is from normal temperature to 60 °C;

Test gas:

CH4, N2, He, H2, CO2, CO, Ar, Kr, etc.;

Desorption system:

The specially designed fully automatic gas desorption system automatically collects and desorbs the desorbed gas, which can automatically monitor and record the entire desorption process, and accurately obtain the desorption initial velocity and adsorption time.

valve:

Fully imported 316 stainless steel high pressure gas control valve;

Pneumatic system:

All stainless steel pneumatic system, all stainless steel gas pipe, joint, VCR hard connection, stainless steel sample tube, the system with maximum pressure of 30MPa;

Dead volume and temperature zone test:

Equipped with 99.999% high-purity HE; with HE gas dead volume test function; with automatic program control HE hot and cold zone temperature zone test function; can obtain higher accuracy;

Sample tube:

Standard 25ml stainless steel sample tube; large volume sample tube optional;

Pretreatment:

The 2-way degassing station has independent temperature control and independent timing function, which can support the sample degassing treatment at different temperatures and different times simultaneously with the test; it has “normal heating vacuum molecular diffusion mode” and “molecular replacement mode”. Two optional functions; the molecular replacement mode can increase the efficiency of the molecular diffusion mode by more than one time, which can save more than half of the pretreatment time, and solve the problem of long preparation time of the static sample;

Anti-pumping:

The original anti-pollution device of the principle of vortex dust reduction, combined with the software anti-draw program, completely eliminates the boiling phenomenon of volatile samples under high vacuum, thus avoiding the contamination of the valve pipeline by volatiles.

safety:

all

import

Pneumatic valve, no solenoid valve, high performance explosion-proof grade; equipped with high sensitivity flammable gas detection alarm, detection limit is better than 3% LEL;

instrument

specification:

Dimensions: thickness 50cm width 72cm height 85cm, net weight: 55Kg, voltage: AC220v ± 5%, power less than 2000 watts

The role of hydrogen storage adsorption instrument

In the process of gas storage and separation of adsorbent materials, it is usually necessary to know the amount of gas adsorption, and the storage and separation steps are often carried out under ultra-high pressure conditions. When testing the amount of adsorption, a static capacity device is used to detect how much gas is adsorbed by the adsorbent material as a function of pressure within a fixed volume.

Hydrogen storage adsorber workflow

Hydrogen storage adsorber

Static capacity method used, using hydrogen

,

Methane

or

Gases such as carbon dioxide are subjected to high pressure adsorption and desorption isotherms.

The volumetric process technique introduces a certain amount of a known gas (adsorbent) into the analysis chamber containing the sample to be tested, and records the final equilibrium pressure when the sample is in equilibrium with the adsorbed gas. These data are used to calculate the amount of gas adsorbed by the sample. This process is repeated for a set pressure interval until the preselected maximum pressure is reached. The pressure is then reduced, providing a isotherm, and each equilibrium point (adsorption amount and equilibrium pressure) can be used to draw the isotherm. Good reproducibility and accuracy are achieved by monitoring the manifold and sample chamber with separate sensors.

Prerequisites for ensuring the accuracy and safety of hydrogen storage adsorbers

integrated

Modular assembly line:

Overall integration

Pipe

Design, vacuum line

decrease very much

Instrument tightness

Greatly improve

Greatly improve the stability and accuracy of the instrument; all parts of the pneumatic system are modularized and assembled, which greatly reduces the failure rate and greatly enhances the stability of the instrument;

High precision segmented pressure measurement:

The key components of the instrument are pressure sensors with imported capacitor diaphragm pressure sensors.

Reading accuracy error ≤

+

0

.

15%, the highest precision of current pressure sensors;

Use pressure

Segmentation test

Improve test accuracy for different pressure sections

The large hole section has the real-time test function of P0, which makes the control precision of P/P0 reach the spirit boundary point to 0.

.

998;

independent

P0

Test station:

With independent saturated vapor pressure (P0) test station to ensure high accuracy of partial pressure test;

Software and hardware cooperation, completely eliminated

Analyze boiling phenomenon

Besider's original vortex dust reduction principle hardware anti-draw device, combined with software anti-draw program to completely eliminate the boiling phenomenon of volatile samples under high vacuum, thus avoiding the system gas caused by volatiles polluting the valve pipeline a situation in which the density is reduced;

Optional processing mode:

It has two models of sample pretreatment common mode and molecular replacement mode pioneered at home and abroad.

;

Eliminate the accidental drop of the thermostat cup:

It has the only intelligent control mechanism for accidental “safety drop” of liquid nitrogen cup in China, which completely avoids the risk of accidental drop of liquid nitrogen cup to cause the sample tube to burst;

The vacuum pump automatically starts and stops:

Optimized vacuum pump start-stop management system, the vacuum pump does not need to be in running state during the test, reducing noise and delay

long

Vacuum pump life

;

Power off automatically saves current data:

Superior stability, even if the power is cut off unexpectedly, disconnected, the current data will not be lost, and the experiment can resume

;

Sealing self-test:

Advanced intelligent self-test process, intelligently judge whether the sample tube is installed, and whether the test tube jacket is tightened or not;

User-friendly interface:

Clear image of the graphical control interface, and all hardware control operations on the interface;

Highly intelligent working mode

: Interactive data processing software can realize the fully automatic operation of the instrument. The long-time experiment does not require manual control at all, and the report content can be customized according to user needs.