Version 1
: Received: 24 June 2024 / Approved: 24 June 2024 / Online: 24 June 2024 (11:47:12 CEST)
How to cite:
Zhao, J.; Jiang, J.; Wang, M.; Li, J.; Wang, X.; Zhu, R. Innovative in/H-SSZ-39 Catalysts: A Exploration in NOx Reduction via CH4-SCR. Preprints2024, 2024061679. https://doi.org/10.20944/preprints202406.1679.v1
Zhao, J.; Jiang, J.; Wang, M.; Li, J.; Wang, X.; Zhu, R. Innovative in/H-SSZ-39 Catalysts: A Exploration in NOx Reduction via CH4-SCR. Preprints 2024, 2024061679. https://doi.org/10.20944/preprints202406.1679.v1
Zhao, J.; Jiang, J.; Wang, M.; Li, J.; Wang, X.; Zhu, R. Innovative in/H-SSZ-39 Catalysts: A Exploration in NOx Reduction via CH4-SCR. Preprints2024, 2024061679. https://doi.org/10.20944/preprints202406.1679.v1
APA Style
Zhao, J., Jiang, J., Wang, M., Li, J., Wang, X., & Zhu, R. (2024). Innovative in/H-SSZ-39 Catalysts: A Exploration in NOx Reduction via CH4-SCR. Preprints. https://doi.org/10.20944/preprints202406.1679.v1
Chicago/Turabian Style
Zhao, J., Xianbin Wang and Rongshu Zhu. 2024 "Innovative in/H-SSZ-39 Catalysts: A Exploration in NOx Reduction via CH4-SCR" Preprints. https://doi.org/10.20944/preprints202406.1679.v1
Abstract
Nitrogen oxides (NOx), pivotal atmospheric pollutants, significantly imperil the environment and human health. The CH4-SCR process, leveraging the abundant and accessible methane (CH4), emerges as a promising avenue for NOx abatement. Previous studies have demonstrated that zeolite support with twelve-membered ring (12-MR) and five-membered ring (5-MR) structures are susceptible to framework collapse in the presence of water, leading to catalyst deactivation. Consequently, there is a necessity to explore novel zeolites with enhanced hydrothermal stability for application in CH4-SCR processes. This research introduced for the first time an investigation into a novel In-H-SSZ-39 catalyst, synthesized via ion exchange and meticulously optimized for preparation conditions, including calcination temperature, In ions concentraiton, and reaction conditions, including CH4/NO ratio, O2 concentration, water vapor content, and Gas hourly space velocity (GHSV). Notably, the In/H-SSZ-39 catalyst achieved superior performance of 42.1% at 605 °C, with a calcination temperature of 500 °C and an In ion concentration of 0.066 M, under CH4/NO ratio of 1.5:1, 10% O2, and GHSV of 21000 h-1. In addition, the catalytic performance was influenced by the concentration of water vapor and the GHSV value.
Chemistry and Materials Science, Materials Science and Technology
Copyright:
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