AMI-90 Catalyst Characterization Instrument
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Brochure.
Based on our successful AMI-1/100/200 instruments, the AMI-90 provides rapid catalyst characterization in a compact, affordable package. The AMI-90 was designed specifically for the price-conscious customers with applications that are more routine or less demanding. As always, full automation and powerful data-handling software assure data accuracy and improve laboratory efficiency.
The AMI-90
The AMI-90 represents a new standard in automated chemisorption analysis. Developed by and for catalyst researchers, it and its predecessor, the AMI-1, were first in the industry to offer a fully automated system system capable of performing all the major dynamic techniques required for fully characterizing a catalyst. The AMI-90 utilizes proven technology for performing the following procedures:
- Temperature programmed desorption (TPD)
- Temperature programmed reduction/oxidation (TPR/0)
- Pulse chemisorption
- Catalyst treatment
- Pulse calibration
Up to 99 procedures can be linked together back-to-back to provide a complete characterization experiment. Routine experiments can be designed and stored for easy retrieval.
Hardware and Operation
The AMI-90 is a fully automated, atmospheric pressure system. Through software control, it can switch gas streams, control gas flow rates, blend gases, control temperature and temperature ramps, and collect desorption data in order to quantify the adsorption and desorption of gas molecules for a catalyst surface.
To improve the quality of data, the AMI-90 utilizes a high-precision electronic mass flow controller for both the carrier and treatment gases. This ensures constant treatment flow and a stable baseline with changing temperatures. We minimize dead volume by using 1/16 inch plumbing in order to reduce peak spreading. The furnace can heat the sample to 700°C and is capable of linear temperature ramps from 1°C/minute to 20°C/minute.
The AMI-90 is fitted with a highly linear thermal conductivity detector (TCD). A choice of filament types is offered to maximize the sensitivity for your particular analysis.
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Computer Control and Data Acquisition The AMI-90 is fully-automated for ease of use and reliability. The control portion of the software controls and regulates all valve positions, temperatures, flow rates, and detector parameters. Data acquisition occurs at a selected rate for optimum performance. An "Overview" screen shows the status of the unit at a glance. This screen provides information on the position of all valves, type of gas connected to each port, temperatures, and detector signal.
The data handling package allows the user to display and integrate signal peaks, calculate chemisorptive parameters, and overlay data. Choice of Detectors With the AMI-90 you can use the standard thermal conductivity detector or choose other detectors of your choice. We supply integrated mass spectrometers that can be used in addition to the TCD. In addition, we can incorporate any detector that provides an analog output or can communicate through Dynamic Data Exchange (DDE) etc. |
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For more information on our products or to discuss your particular application, please contact us.
Phone: 412-963-6385 Fax: 412-963-6485
e-mail: Info@AltamiraInstruments.com