The best way to measure breakthrough curves is by analyzing the downstream composition of effluent vapors or gases that pass through the absorbent fixed bed sample. This is a chromatographic method of analysis for the adsorption properties of various porous materials, such as MOFs and COFs, and is widely regarded as a useful technique for characterizing new materials.
Measuring breakthrough curves is a process that involves introducing a step change in gas composition, pressure, or flow rate. The process entails loading materials samples into a fixed bed and purging them with an auxiliary gas at an elevated temperature. The reactor bed is then dosed with a gas mixture that has a distinct composition from an inlet, where it will then flow through the reactor bed to be measured downstream. Measurement values include the time-resolved effluent concentration and temperature observations.
Measuring breakthrough curves offers distinct advantages over other determinations of gas and vapor adsorption by providing an unbiased direct comparison of how different materials perform. Several scales can also be addressed simultaneously and automatically, including the size and shape of the adsorber, the fixed bed porosity, and the resulting surface chemistry. Moreover, automated instrumentation can be used in breakthrough curve analysis, which helps streamline the laborious process of attaining real-time datasets for research.
Hiden Isochema: The Best Way to Measure Breakthrough Curves
Hiden Isochema is a leading worldwide industry player in the development and manufacture of sorption instruments in various fields, such as material science and surface chemistry. Their gravimetric (XEMIS, IGA), manometric (IMI), dedicated breakthrough (ABR), and membrane permeation (MBR) analyzers are used in research departments all over the world.
The ABR is an automated breakthrough analyzer from Hiden Isochema that enables gas and vapor separation. This automated instrument is fully equipped with an integrated quadrupole mass spectrometer and is fully programmable. It is optimized for research scale samples and comes with interchangeable reactor beds (from just 2 cc).
This information has been sourced, reviewed and adapted from materials provided by Hiden Isochema.
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