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

Seo J 1 , Kim H 1 , Jeon S 1 , Valizadeh S 1 , Khani Y 1 , Jeon BH 2 Show all authors , Rhee GH 3 , Chen WH 4 , Lam S 5 , Khan MA 6 , Park YK 7

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
Bioresour Technol, 2023 Apr;373:128702.
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.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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