Supreme efficacy: The ultrahigh performance of ZnO adsorbent for ambient-temperature H2S removal in integrated H2S–N2 gas

Herein, Na2CO3 emerges as a superior precipitating agent for synthesizing ZnO adsorbent, demonstrating remarkable structural properties that dramatically enhance the H2S removal. ZnO precipitated by Na2CO3 (ZnO-SC) exhibits the highest breakthrough capacity at a space velocity of 25,000 h⁻1, reachin...

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Veröffentlicht in:Case studies in chemical and environmental engineering Jg. 9; S. 100615
Hauptverfasser: Gunawan, Melia L., Muntaqin, Althafa, Saraswati, Made A., Nurdini, Nadya, Subagjo, Kadja, Grandprix T.M., Rasrendra, Carolus B.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier Ltd 01.06.2024
Elsevier
Schlagworte:
Breakthrough capacity
H2S removal
Kinetic parameter
ZnO adsorbent
Breakthrough capacity
H2S removal
ZnO adsorbent
Kinetic parameter
ISSN:2666-0164, 2666-0164
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Zusammenfassung:Herein, Na2CO3 emerges as a superior precipitating agent for synthesizing ZnO adsorbent, demonstrating remarkable structural properties that dramatically enhance the H2S removal. ZnO precipitated by Na2CO3 (ZnO-SC) exhibits the highest breakthrough capacity at a space velocity of 25,000 h⁻1, reaching a capacity of 32.1 mg S g−1 adsorbent, while that precipitated by NH4OH (ZnO-AH) and the commercial adsorbent (ZnO-Com) achieve capacities of 2.4 mg S g−1 adsorbent and 7.1 mg S g−1 adsorbent, respectively. Moreover, kinetic studies on the adsorbent deactivation have been conducted to obtain insights into the adsorbent behavior and provide the fundamental basis for further improvement. [Display omitted]
ISSN:2666-0164
2666-0164
DOI:10.1016/j.cscee.2024.100615