STD-Chem C200 Automatic Chemisorption Analyzer

Standard Function

Temperature Programmed Desorption (TPD)

Temperature Programmed Reduction (TPR)

Temperature Programmed Oxidization (TPO)

Temperature Programmed surface reaction (TPSR)

Temperature Programmed Sulfidization (TPS)

Pulse Titration

Desorption activation energy (Ed)

Preexponential factor A of desorption (Ad)

Desorption order (n)

Multi-temperature points

Automatic cycle lifetime assessment;

Programmable multi-step reactionprocess;

Automatic multi-temperature points execution.

Technical Parameter

Temperature programmed: program-controlled heating and cooling, rate: 1 centigrade/min to 100 centigrade/min;

2 high-temperature furnaces,range from room temperature to 1473K, two furnaces switch automatically and work for heating and cooling in turns;

Support 12 gas pipeline analysis;

Mass Flow Controller (MFC): Support 3gas pipelines, support gas mixture chemistry adsorption;

Adsorbate type: Non-corrosive and corrosive gas, vapour, etc.,

Test pressure: Standard Normal pressure; 1Mpa, 3Mpa, 10Mpa(Optional);

Pulse Titration: Standard measurable tube 0.5ml, optional1ml and 5ml;

Vacuum pump: eliminate the effect of residual gas in free space of pipeline;

Cold trap: eliminate effect of low-boiling point components vapor (e.g. water) on concentration detection;

Vapor Generator, generate vapor for chemisorption;

Sample tube: Quartz U-shaped sample tube with temperature reference tube;

Thermostat system: Double systems for thermostat, gas circuit system support from 313Kto 353K while TCD system supports from 333K to 383K;

External marked sampler: Standard 1ml sampler; other volumes (Optional);

Two combustible gas alarms: Monitor different areas in real-time, avoiding leakage of combustible gas;

Two detection modes of TCD detector: Support switching high sensitivity mode and wide range mode, meet test’s requirement of weak signal and strong signal;

Detection system: default TCD detection system, Optional MS detection and infrared system.

Characteristic Structure 

Technical Advantages

Full automatic test：dual heating furnace automatic switching, no need to wait for pre-treatment cooling, directly switch to the other furnace for testing, without human intervention;

Vacuum clean residual gas: built-in vacuum pump to remove residual gas in free space, reduce baseline drift and improve test accuracy;

Temperature reference tube: temperature sensor is placed in reference tube of the sample tube (the sensor and sample are in the same environment), ensure high accuracy of temperature control and measurement.

Automatic air-cooled cooling system:equipped with an air-cooled tube and a temperature detector at the air-cooled site, automatically detect the temperature of the heating furnace and turn on the air-cooled cooling system to prepare for the next test;

Multi-step continuous automatic test: fully automatic execute edited multi-step test program, used to evaluate the catalytic performance and chemical adsorption performance of materials under complex reaction conditions;

Automatic cycle test: pre-treatment and test automatically cycle, used to evaluate the lifetime and chemisorption stability of materials;

Support ultra-low temperature thermostat & ultra-low temperature programmed temperature rising, realize ultra-low temp test;

High standard configuration: standard vapor generator, pulsed titration system;

Support test of mixing 3 analysis gas, standard 3 gas MFC and support 3-gas mixture test;

High reliability and durability;

Comparison test result

Application data report

For right graph: Three NH₃ desorption peaks appeared at 463K, 723K,1173K; if the desorption peak at 1173K is NH₃’s, it is not in line with the characteristic of the material and expectations of the researchers.

For left graph: Two NH₃ desorption peaks appeared at 463K and 723K while small amount of H₂O desorption, the desorption peaks at 1173K is the H₂O’s, in line with characteristic (Not desorb NH₃ )of the material.

For right graph: Three NH₃ desorption peaks appeared at 398K,623K and 973K;

For left graph: NH₃ desorption peak appeared at 398K; small NH₃ desorption peak appeared at 623K; H₂O desorption peak appeared at 513K; CO₂ desorption peak appeared at 623K; CO desorption peak appeared at573K and 973K;

Coupled with on-line mass spectrometer and Infrared

Mass spectrometry interface;

Real time monitor in TPSR;

Obtain concentration curve.

FT-IRinterface, optional model Nicolet iS20.Nicolet Summit (ThermoFisher)

Optional gas accessories,

Optional solid accessories;