Thermocatalytic conversion of wood-plastic composite over HZSM-5 catalysts

Jihyeon Seo; Hyunjin Kim; Sugyeong Jeon; Soheil Valizadeh; Yasin Khani; Byong-Hun Jeon; Gwang Hoon Rhee; Wei-Hsin Chen; Shiung Lam; Moonis Ali Khan; Young-Kwon Park

doi:10.1016/j.biortech.2023.128702

Thermocatalytic conversion of wood-plastic composite over HZSM-5 catalysts

Bioresour Technol. 2023 Apr:373:128702. doi: 10.1016/j.biortech.2023.128702. Epub 2023 Feb 3.

Authors

Affiliations

¹ School of Environmental Engineering, University of Seoul, Republic of Korea.
² Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea.
³ Department of Mechanical and Information Engineering, University of Seoul, Seoul 02504, Republic of Korea.
⁴ Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan.
⁵ Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Center for Transdisciplinary Research, Saveetha Institute of Medical and Technical Sciences, Saveetha University , Chennai, India; University Centre for Research and Development, Department of Chemistry, Chandigarh University, Gharuan, Mohali, Punjab, India.
⁶ Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
⁷ School of Environmental Engineering, University of Seoul, Republic of Korea. Electronic address: catalica@uos.ac.kr.

PMID: 36740100
DOI: 10.1016/j.biortech.2023.128702

Abstract

Air gasification of the Wood-Plastic Composite (WPC) was performed over Ni-loaded HZSM-5 catalysts to generate H₂-rich gas. Increasing SiO₂/Al₂O₃ ratio (SAR) of HZSM-5 adversely affected catalytic activity, where the highest gas yield (51.38 wt%) and H₂ selectivity (27.01 vol%) were acquired using 20 %Ni/HZSM-5(30) than those produced over 20 %Ni/HZSM-5(80) and 20 %Ni/HZSM-5(280). Reducing SAR was also favorably conducive to increasing the acyclic at the expense of cyclic compounds in oil products. These phenomena are attributed to enhanced acid strength and Ni dispersion of 20 %Ni/HZSM-5(30) catalyst. Moreover, catalytic activity in the terms of gas yield and H₂ selectivity enhanced with growing Ni loading to 20 %. Also, the addition of promoters (Cu and Ca) to 20 %Ni/HZSM-5(30) boosted the catalytic efficiency for H₂-rich gas generation. Raising temperature indicated a positive relevance with the gas yield and H₂ selectivity. WPC valorization via gasification technology would be an outstanding outlook in the terms of a waste-to-energy platform.

Keywords: Air gasification; H(2) generation; HZSM-5; Ni-loaded catalysts; Wood plastic composite.

MeSH terms

Catalysis
Plastics*
Silicon Dioxide*
Temperature
Wood

Substances

Silicon Dioxide
Plastics