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Characterization of Micromeritics ICCS catalyst
NegotiableUpdate on 05/06
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Overview
Pulse chemical adsorption and temperature programmed analysis (TPx) can be performed without removing the catalyst from the reactor. High sensitivity thermal conductivity detector (TCD) is used to monitor changes in gas concentration entering and exiting the reactor. The internal cold trap is used to remove condensable liquids (such as water generated during oxide reduction processes)
Product Details
Overview
The Micromeritics ICCS in-situ catalyst characterization system is a tool that allows users to study the impact of reactions on key parameters, such as the number of active sites, under precisely controlled and representative process conditions.
ICCS is an independent accessory designed to complement any dynamic laboratory reactor system, such as Micromeritics Flow Reactor, and adds two new features: Temperature Program Analysis (TPx) and Pulse Chemical Adsorption.
These well-known and proven technologies can now be used for fresh catalysts and can be repeated on used catalysts without the need to remove materials from the reactor. This makes it possible to conduct a detailed comparison of catalysts, especially in terms of the number of active sites before and after use. Users can obtain temperature program analysis and pulse chemical adsorption data from the same sample used for reaction research.
Performing these analyses in situ can almost eliminate pollution from gases and moisture in the air, which may damage active catalysts and affect data integrity.
PID joined Micromeritics in 2018 and integrated its technologies, including ICCS, into its product portfolio. In 2025, Micromeritics and PID will join Malvern Panalytical and incorporate these instruments into the group's material characterization solutions.
Features and advantages
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Two high-performance quality flow controllers achieve precise and fully automatic gas flow control to support TPx and pulse chemical adsorption analysis
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Fully enclosed in-situ testing, supporting multiple characterizations of the same catalyst using the same sample
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High precision thermal conductivity detector (TCD), real-time monitoring of gas concentration changes flowing into and out of the sample reactor
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Touchscreen, intuitive software, and graphical interface enable easy and smooth operation, as well as convenient viewing and manipulation of alarms, commands, and control parameters
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Temperature controlled stainless steel flow path can provide an inert and stable operating environment, and reduce the risk of condensation; Two internal temperature control zones can be independently controlled
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The internal cold trap is equipped with an additional temperature control area for removing condensable liquids (such as water generated during oxide reduction processes)
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Ultra low volume flow path, minimizing peak broadening and significantly improving peak resolution
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Corrosion resistant testing wire, long-term compatible with commonly used TPx and pulse chemisorbed gases
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The interactive peak editor toolkit helps researchers easily convert data into information; Adjust peak boundary with just one click
operating principle
The typical operation process of ICCS begins with loading the catalyst into the reactor system. Subsequently, the catalyst can be characterized using temperature programming methods
- Temperature programmed reduction (TPR) is commonly used for supported metal catalysts
- Temperature programmed desorption (TPD) may involve acidic or alkaline catalysts
After TPx, pulse chemical adsorption is usually carried out to determine the number of active sites. The combination of TPx and pulse titration can be used for characteristic analysis of fresh (unused) catalysts under representative conditions, especially under high pressure.
After completing the preliminary characterization, users can continue to use the same sample for reaction research without the need to add additional catalysts or transfer to other devices.
After catalyst deactivation or prolonged testing, TPx and pulse chemical adsorption techniques can be used to analyze the used catalyst under the same conditions, using the same analysis method as fresh materials. This strategy provides a method to compare the key characteristics of the catalyst before and after use, such as the number of active sites, without the need to remove the catalyst from the reactor.
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