Co-pyrolysis of biomass and waste tires under high-pressure two-stage fixed bed reactor

Fengchao Wang; Ningbo Gao; Aneta Magdziarz; Cui Quan

doi:10.1016/j.biortech.2021.126306

Co-pyrolysis of biomass and waste tires under high-pressure two-stage fixed bed reactor

Bioresour Technol. 2022 Jan;344(Pt B):126306. doi: 10.1016/j.biortech.2021.126306. Epub 2021 Nov 13.

Authors

Fengchao Wang¹, Ningbo Gao², Aneta Magdziarz³, Cui Quan¹

Affiliations

¹ School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
² School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China. Electronic address: nbogao@xjtu.edu.cn.
³ AGH University of Science and Technology, 30 Mickiewicza Av, PL-30059 Krakow, Poland.

PMID: 34780903
DOI: 10.1016/j.biortech.2021.126306

Abstract

The distribution of biomass pyrolysis products under high pressure have rarely been reported. In this study, the effect of pressure on the product distribution of pine sawdust (PS) pyrolysis was studied. The synergistic effect of the side wall rubber (SWR) and PS was confirmed under pressurized conditions. Calcined bottom ash (CBA) and SWR char (SWRC) were used to enhance the quality of the pressurized co-pyrolysis products. The PS and SWR pyrolysis chars obtained under high pressure conditions exhibited serious melting and cross-linking problem. The CO₂ content decreased to 19.96 vol% in co-pyrolysis gas with the CBA/SWRC_7/3 catalyst. The water content decreased by 85.71% after the SWRC catalyst in the pressurized co-pyrolysis process. Compared with the concentration of benzene in PS and SWR oil, the concentration of benzene in SWR/PS_7/3 oil without catalysts increased by 9.57 times and 0.25 times, respectively.

Keywords: Bottom ash; Pine sawdust; Pressurized co-pyrolysis; TG-FTIR; Waste tire.

MeSH terms

Biomass
Coal Ash
Pyrolysis*
Rubber
Wood*

Substances

Coal Ash
Rubber