AMI-300 IR fully automatic chemical adsorption instrument Introduction: AMI-300IR represents the development direction and future of catalyst characterization instruments. After launching the world's first fully automatic chemical adsorption analyzer in 1984, AMI Instrument Company in the United States also launched the world's first fully automatic in-situ infrared catalyst characterization system in 2015. Chemical adsorption and temperature programmed desorption (TPD) have been widely used for the characterization of catalysts. Generally, thermal conductivity detectors (TCD) or mass spectrometers are used to detect gases escaping from the catalyst surface. By using these techniques, the number and strength of active sites can be understood, but the properties of catalytic sites, types of adsorption, or the presence of multiple types of catalytic sites have not yet been analyzed. To fill this gap, AMI Instrument Company has developed the AMI-300IR, which combines AMI's original standard technology with Fourier transform infrared spectroscopy (FTIR) for in-situ analysis of catalyst surfaces. This combination technology enables direct observation of adsorbed substances, thereby expanding our understanding of the properties of adsorption/desorption processes. characteristic: 1. Mixing function The AMI-300 IR has gas mixing function and can replace expensive mixed gases, such as multi-component gas mixing required for TPR or TPO experiments. 2. The sample is easy to load Mobile shell furnace makes it easy to remove and load sample tubes. 3. Reference station Ensure that the gas does not come into contact with the sample during the calibration pulse process to improve accuracy. 4. Cold trap A cold trap filled with desiccant can be installed downstream of the sample tube to remove condensates before flowing through TCD. 5. Quantitative injection port Provides a quantitative needle injection port for precise calibration of the quantitative ring volume. 6. Overall pipeline insulation All valves and pipelines are placed in a heatable and insulated box to prevent condensation. 7. External mass spectrometer Real time integration of MS data and AMI-300 data is achieved through Direct Data Exchange (DDE). 8. The system has a small dead volume Use low volume valves and 1/16 pipelines to reduce dead volume and minimize peak diffusion to the greatest extent possible. 9. TCD detector A high-precision 4-fire TCD detector with high linearity, accuracy, sensitivity, and stability. There are different filament materials to choose from. 10. Auxiliary detector Can accept any auxiliary detector that provides analog voltage output, such as flame ionization detector (FID). 11. Structural material The seals and materials are custom designed according to your needs. 12. Security Protection Independent furnace over temperature protector, gas safety valve, check valve, circuit breaker, and TCD anti dry burning system. Technical parameters: Model: AMI-300 IR Infrared detector: multiple specifications of infrared reaction tanks Typical sample: 0.1-1g Workstation: 1 analysis station Temperature range: Room temperature -1200 ℃ Low temperature options: -130 ℃ -1200 ° C Temperature rate: 1 ℃/min - --50 ℃/min Gas input (low pressure): 4 carrier gases, 4 process gases, 2 mixed gases Standard operating pressure: Atmospheric pressure Gas flow rate: 5-50ml/min Sample tube type (low pressure): quartz U-tube, bubble tube, straight wall tube Temperature control range: -130 to+1200 ° C (low-temperature system) TCD detector: two materials to choose from (tungsten; gold/tungsten) Pipeline material: 316 stainless steel, 1/16 inch Sealing ring: optional Viton, Buna-N, Kalrez, etc Size: Width 56cm; 60cm high; 61cm deep
Introduction: AMI-300IR represents the development direction and future of catalyst characterization instruments. After launching the world's first fully automatic chemical adsorption analyzer in 1984, AMI Instrument Company in the United States also launched the world's first fully automatic in-situ infrared catalyst characterization system in 2015. Chemical adsorption and temperature programmed desorption (TPD) have been widely used for the characterization of catalysts. Generally, thermal conductivity detectors (TCD) or mass spectrometers are used to detect gases escaping from the catalyst surface. By using these techniques, the number and strength of active sites can be understood, but the properties of catalytic sites, types of adsorption, or the presence of multiple types of catalytic sites have not yet been analyzed. To fill this gap, AMI Instrument Company has developed the AMI-300IR, which combines AMI's original standard technology with Fourier transform infrared spectroscopy (FTIR) for in-situ analysis of catalyst surfaces. This combination technology enables direct observation of adsorbed substances, thereby expanding our understanding of the properties of adsorption/desorption processes.
