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The AutoChem II 2920 is a fully automated chemisorption analyzer that can provide your laboratory with the ability to conduct a comprehensive array of highly precise studies of chemical adsorption and temperature-programmed reactions. With this single instrument, you can acquire valuable information about the physical properties of your catalyst, catalyst support, or other materials. It can determine catalytic properties such as percent of metal dispersion, active metal surface area, acid strength, surface acidity, distribution of strength of active sites, BET surface area, and more. The AutoChem II 2920 performs pulse chemisorption, temperature-programmed reduction (TPR), desorption (TPD), oxidation (TPO), and reaction analyses and does it automatically.
A catalyst characterization laboratory enclosed in one cabinet.
The AutoChem II 2920 is a fully automated chemisorption analyzer that can provide your laboratory with the ability to conduct a comprehensive array of highly precise studies of chemical adsorption and temperature-programmed reactions. With this single instrument, you can acquire valuable information about the physical properties of your catalyst, catalyst support, or other materials. It can determine catalytic properties such as percent of metal dispersion, active metal surface area, acid strength, surface acidity, distribution of strength of active sites, BET surface area, and more. The AutoChem II 2920 performs pulse chemisorption, temperature-programmed reduction (TPR), desorption (TPD), oxidation (TPO), and reaction analyses and does it automatically.
This unit is also available in a Corrosion Resistant version.
Optimum design and efficient utilization of catalysts require a thorough understanding of the surface structure and surface chemistry of the catalytic material. Chemical adsorption (chemisorption) analyses can provide much of the information needed to evaluate catalyst materials in the design and production phases, as well as after a period of use. The chemical adsorption isotherm reveals information about the active surface of a material and has been employed for many years as a standard analytical tool for the evaluation of catalysts. In addition, temperature-programmed reaction techniques have emerged as an indispensable companion to chemisorption isotherm analyses in many areas of industry and research.
The new AutoChem III is designed to make key operations quick and easy, saving you hours a day so you can spend less time making measurements and more time making progress
The new AutoChem III is designed to make key operations quick and easy, saving you hours a day so you can spend less time making measurements and more time making progress
The NEW AutoCool is an integrated gas-fed system that rapidly cools sample tubes before and during experiments. AutoCool is typically 30 minutes faster than alternative systems and requires no liquids or external support. The NEW AutoTrap effectively traps vapor and requires no manual slush bath preparation.
Traditional methods for vapor capture require the time-intensive process of slush-bath preparation through the manual mixing of liquid nitrogen with isopropanol. The zeolite bed of the AutoTrap effectively captures vapors, can be used for several experiments without interruption and can be regenerated in situ.
The new MicroActive method editor features an intuitive process illustration that shows the programmed state of the instrument at every step of the method so you can see that your method matches your vision
The AutoChem III makes quantitative accuracy simple with automated detector calibration. Traditional systems require calibration by multiple runs of reference materials or single-point offsets that ignore changes in temperature or pressure.
The AutoChem III generates accurate results through a fully automated process using the system’s patented gas blending capabilities including compensation for injection loop temperature and pressure to ensure the highest calibration – and result – accuracy. The process is fast, automated, requires no operator intervention, and produces more accurate results than alternative designs.
US Pat #10,487,954 B2
The patented new KwikConnect makes sample tube installation faster, easier, and more reliable than traditional designs with half as many separate pieces and no threaded fittings. Installation and removal are easier and quicker, reduce the risk of breaking sample tubes, and provide peace of mind that the snap lock closure has completely sealed the system
US PAT #11,105,825 B2
Don’t waste time reconnecting and switching gas lines: have what you need ready when you need it. The AutoChem III has 18 available gas streams so you’re always ready to run your next reaction. Having the right blended gas ready also means you won’t introduce errors from poorly designed external gas connections, and you won’t compromise data accuracy by blending gases, which unnecessarily introduces errors from mass flow controllers
The AutoChem III provides results that drive confident decisions. The highest available measurement accuracy and repeatability – made under conditions that match your reaction environment – give you certainty to act with confidence
Exacting thermal accuracy is essential to simulate reaction conditions while preventing the deactivation of precious catalyst materials. The AutoChem III exceeds all available systems in every key performance characteristic
The AutoChem III features the lowest gas flow path volume to eliminate carryover and signal tailing when changing gas flow conditions. This guarantees precise gas stream composition, even when switching configurations from one experiment to another
And with 18 available gas inlets, you will have the gas composition that you need ready, without introducing errors associated with blending gases in situ
BETTER TEMPERATURE CONTROL AT EVERY STEP
The new AutoChem III features a new thermal conductivity detector (TCD) that is 110% more sensitive than previous designs. This enables you to use lower sample masses, accurately detect secondary reactions, and achieve greater accuracy of catalyst traits like site coverage
Detector sensitivity is enhanced by a reference stream with a dedicated mass flow controller (MFC) that provides a stable reference to the sample stream. Alternative designs use a common carrier stream for both the reference and signal paths, resulting in interference between the measurement and reference stream leading to signal instability
The temperature-controlled TCD is a robust sensor with a long operating life and intrinsic protection from operational errors like gas flow leaks that cause premature failure of 4-element detectors used in inferior designs
Achieve faster analysis and more complete characterization of surface selectivity and functionality with the available vapor generator featuring automated vapor calibration, injection repeatability better than 1%, and all new continuous dosing capabilities
This system creates uniform streams of saturated vapors such as water, alcohols, amines, or organics that are used to prepare samples for TPD or as the reaction gas stream
The new continuous dosing capability enables faster and more uniform vapor dosing than legacy systems that are limited to discrete vapor stream pulses
Rapidly transition from experimental data to material characteristics with Micromeritics’ own AutoChem data analysis software. Get all the answers you need with:
Mass spec provides a direct probe for the identity and quantity of specific reaction products. This is especially valuable when investigating an unknown reaction, or a reaction that creates multiple products
The single quadrupole mass spec with heated transfer line provides detection of mass fragments up to 200 amu and data collection that is integrated with the operation of the AutoChem III
The AutoChem III also includes a general mass spec communication port for coordination with a lab’s existing mass spec
Begin experiments at temperatures as low as -100 °C with controlled liquid-nitrogen-based cooling
Prepare samples for analysis or perform measurements in the presence of pulsed or continuous vapor streams such as water, alcohol, pyridine, aromatic organics, and more
For reaction chemistries that requires particularly aggressive gas compositions, a special version of the AutoChem III is available with enhanced corrosion resistance. Wetted materials are constructed from highly resistant Hastelloy, highly stable perfluoroelastomers, and inert-coated stainless steel to provide the greatest stability under the harshest working conditions
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