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No. 36 Steam Treatment Method in NH3-TPD

No. 36 Steam Treatment Method in NH3-TPD

A detailed explanation of the specific methods and precautions for steam treatment, which is considered effective for the removal of l-peaks!

Characterization of solid acid catalysts represented by zeolites is frequently conducted using the measurement of acidity through temperature-programmed desorption of ammonia. In this method, it is often observed that the spectrum exhibits two peaks, l (low temperature) and h (high temperature). The l-peak is attributed to ammonia that is further hydrogen-bonded to the NH4+ cation at the acid site and is not considered to indicate acidity. This document provides a detailed description of the specific methods and precautions for steam treatment, which is said to be effective in removing the l-peak. We encourage you to read it. [Contents] ■ Overview ■ Experiment ■ Summary *For more details, please refer to the PDF document or feel free to contact us.

  • Other measuring instruments

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[Web Seminar] Fundamentals of Solid Catalyst Evaluation Using Gas Adsorption Method

[Web Seminar] Fundamentals of Solid Catalyst Evaluation Using Gas Adsorption Method

Evaluation of solid catalyst active sites / Evaluation of carbon functional groups and metal oxides / Precious metal catalysts / CO2 breakthrough curve

Solid catalysts are utilized in various fields such as the environment and energy, making the characterization of these materials essential. In this seminar, we will introduce measurement and analysis methods using gas adsorption techniques to understand the active sites, active surface area, and reaction behavior of various solid catalysts and catalyst supports, along with measurement data and evaluation instruments. [Content] ■ Evaluation methods for solid catalysts using gas adsorption ■ Measurement overview (flow method, pulse method, constant volume method) ■ Evaluation of active sites, reactivity, oxidation, and reduction using temperature-programmed spectroscopy (zeolites, metal oxides, carbon black) ■ Evaluation of precious metal catalysts using pulse measurement methods ■ Evaluation of separation performance using breakthrough curve method (CO2 separation, two-component adsorption separation, CCSU) - Reference: BET single-point method for specific surface area evaluation - MicrotracMRB catalyst evaluation instruments: BELCAT II/BELMASS/BELMETAL 3/BELREA *For more details, please refer to the PDF document or feel free to contact us.

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Catalyst Evaluation Series "BELCAT II/BELMASS II"

Catalyst Evaluation Series "BELCAT II/BELMASS II"

[Presentation of materials with YouTube video link] Various catalyst evaluations possible with one unit! Abundant options!

We would like to introduce the catalytic analysis device "BELCAT II" along with the online gas analyzer "BELMASS II." In addition to the evaluation of heterogeneous catalysts (solid acid/base catalysts and metal-supported catalysts), it is also possible to evaluate adsorbents through breakthrough curve measurements. 【Evaluation List】 ■ Temperature Programmed Desorption/Sorption (TPD/TPO/TPR) measurements ■ Chemical adsorption measurements using the pulse method (metal dispersion, particle size, surface area) ■ Fixed bed atmospheric pressure flow catalytic reactions ■ Breakthrough curve measurements for single and multi-component adsorption * You can download materials with a link to a YouTube video. * For more details, please refer to the PDF materials or feel free to contact us.

  • Other analytical equipment
  • Measurement and Analysis Equipment

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