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Qu'est-ce que le charbon actif dopé?
Le charbon actif dopé est un média filtrant innovant conçu pour conserver la précieuse surface intérieure et la structure microporeuse du charbon actif. Cela le rend très efficace pour éliminer le sulfure d'hydrogène (H2S).2S).
Au cours de notre processus de fabrication, les charbons actifs dopés subissent un traitement qui vise à modifier leurs propriétés. Ce traitement permet non seulement de conserver les capacités d'adsorption exceptionnelles des charbons actifs, mais aussi d'incorporer des catalyseurs spécifiques conçus pour une désulfuration efficace.
This method replaces additional impregnation in the production stage and substantially improves the H2S removal characteristics of the carbon compared to traditional impregnated activated carbon. During production, these crucial catalysts are integrated into the activated carbon, ensuring an even distribution within every pellet. This approach also leaves the micropores untouched, preserving their capacity for both physical adsorption and chemical reactions.
What's the difference?
Activated carbons commonly used for desulfurization are often treated with compounds such as potassium iodide— which is placed afterwards in the pore structure— in order to enhance their capacity to adsorb H2S. Yet, the impregnation process impacts a significant portion of the internal surface area, which also impacts the functionality of the crucial micropores. Unfortunately, these micropores hold the highest potential for adsorbing H2S found in biogas.
Avantages de l'utilisation du charbon actif dopé
Le charbon actif dopé offre des avantages significatifs par rapport aux charbons imprégnés. Sa densité en vrac plus faible réduit la nécessité de recharges fréquentes, tandis que le volume plus important des micropores augmente sa charge en soufre et son potentiel d'adsorption.
The higher sulfur loading capacity extends time between service intervals since the activated carbon does not need to changed as often. It also slows H2S breakthrough, providing more reaction time or allowing for a timely activated carbon replacement. The special catalyst also creates an ideal environment for accelerated chemical reactions, ensuring efficient filtration across operating conditions.
