Simultaneous enhancement of the H2 yield and HCl removal efficiency from pyrolysis of infusion tube under novel mayenite-based mesoporous catalytic sorbents

Yongsheng Jia, Yingjie Wang, Cong Jiang, Xun Wang, Zhiquan Hu, Bo Xiao and Shiming Liu

Energy, 2022, vol. 244, issue PB

Abstract: The promising pathway of turning energy-containing waste into renewable and sustainable energy has effectively alleviated the excessive dependence on traditional fossil energy. In this study, two different mesoporous catalytic sorbents i.e. Ca12Al14O33@mCaO and Ca12Al14O33@mCu/CaO were synthesized by sol-gel method and their promotion effect on H2 yield and simultaneous removal of harmful HCl gas during the pyrolysis of infusion tube (IT) was explored. Results indicated that the abundant internal mesoporous structure of Ca12Al14O33@mCaO made the specific surface area and pore volume of 10.26 m2/g and 0.0541 cm3/g, respectively, which provided a larger contact area for the catalytic reaction. Maximum H2 yield of 59.01 μmol g−1·min−1 was obtained under the optimal conditions while maximum HCl removal efficiency was as high as 93.36%. Compared to that of the Ca12Al14O33@mCaO, higher H2 yield (73.23 μmol g−1·min−1) recovered over Ca12Al14O33@mCu/CaO and the HCl removal efficiency also remained stable at about 90%. Both synthesized mesoporous catalytic sorbents showed an increase in H2 yield and a good removal effect on HCl during the pyrolysis process of IT.

Keywords: H2 yield; HCl removal efficiency; Infusion tube; Mesoporous catalytic sorbents (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:244:y:2022:i:pb:s0360544221033168

DOI: 10.1016/j.energy.2021.123067

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