Assessment of heating rate and mixing ratio on the synergistic effects of co-pyrolysis of pine sawdust and high-density polyethylene

Gao, Shanshan1,3; Li, Sijie1,2; Shen, Jiangfeng1,2; Liu, Jin1,2; Cao, Daofan3; Li, Junguo3; Liu, Ke3; Gao, Xi1,2,4

2024-08-01

10.1016/j.jaap.2024.106615

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS   影响因子和分区

0165-2370

1873-250X

The co-pyrolysis of biomass and plastics presents a promising approach for generating hydrocarbon fuels and high-value chemicals while addressing environmental pollution concerns. This study investigates the pyrolysis process by examining mixtures of pine sawdust (PS) and high-density polyethylene (HDPE) with varying mass proportions and heating rates using analytical methods including thermogravimetric analysis and differential scanning calorimetry (TGA-DSC), thermogravimetry coupled with Fourier transform infrared spectroscopy (TGFTIR) coupled analysis, pyrolysis gas chromatography-mass spectrometry (Py-GC-MS) and kinetic analysis. The study highlights the impact of heating rate on product distribution, with significant changes observed when the biomass ratio is at 30 %. Moreover, the addition of high-density polyethylene leads to an increase in polyol content in the liquid product. Analysis of product types reveals that plastics act as "hydrogen donors, " supplying hydrogen to biomass during co-pyrolysis, thus reducing oxygen chemicals. Results from the kinetic analysis show that the activation energy for co-pyrolysis is lower than individual pyrolysis, also indicating a synergistic effect. Overall, this research provides insights into the synergistic benefits of co-pyrolysis and establishes a theoretical foundation for advancing co-pyrolysis technology.

Co-pyrolysis Synergistic effect Heating rate Py-GC-MS Pine sawdust

SCI ; EI

英语

其他

National Natural Science Foundation of China[21FAA02728] ; Natural Science Foundation of Guangdong Province[2022A1515010763] ; Guangdong Provincial Science and Technology Innovation Strategy Special Fund[STKJ202209056]

Chemistry ; Energy & Fuels ; Engineering

Chemistry, Analytical ; Energy & Fuels ; Engineering, Chemical

WOS:001260736900001

ELSEVIER

20242616423920

Activation analysis ; Activation energy ; Biomass ; Differential scanning calorimetry ; Elastomers ; Fourier transform infrared spectroscopy ; Gas chromatography ; High density polyethylenes ; Mass spectrometry ; Plastics ; Pyrolysis ; Thermogravimetric analysis

Heat Transfer:641.2 ; Chemistry:801 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Organic Polymers:815.1.1 ; Polymer Products:817.1 ; Elastomers:818.2 ; Temperature Measurements:944.6

CHEMISTRY

Web of Science

1.Guangdong Technion Israel Inst Technol, Dept Chem Engn, Shantou 515063, Peoples R China
2.Technion Israel Inst Technol, Fac Chem Engn, IL-3200003 Haifa, Israel
3.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
4.Guangdong Technion Israel Inst Technol, Guangdong Prov Key Lab Mat & Technol Energy Conver, Shantou 515063, Peoples R China

Gao, Shanshan,Li, Sijie,Shen, Jiangfeng,et al. Assessment of heating rate and mixing ratio on the synergistic effects of co-pyrolysis of pine sawdust and high-density polyethylene[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2024,181.

Gao, Shanshan.,Li, Sijie.,Shen, Jiangfeng.,Liu, Jin.,Cao, Daofan.,...&Gao, Xi.(2024).Assessment of heating rate and mixing ratio on the synergistic effects of co-pyrolysis of pine sawdust and high-density polyethylene.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,181.

Gao, Shanshan,et al."Assessment of heating rate and mixing ratio on the synergistic effects of co-pyrolysis of pine sawdust and high-density polyethylene".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 181(2024).