Raman spectroscopy as a versatile tool for investigating thermochemical processing of coal, biomass, and wastes: recent advances and future perspectives

J Xu, Q He, Z Xiong, Y Yu, S Zhang, X Hu, L Jiang… - Energy & …, 2020 - ACS Publications
Raman spectroscopy, as a rapid, high-precision, and nondestructive tool, can be used for
analyzing the samples from gas to solid, from ex situ to in situ, from organic macromolecule …

Evolution of carbon structure and functional group during Shenmu lump coal pyrolysis

D Meng, C Yue, T Wang, X Chen - Fuel, 2021 - Elsevier
An in-depth study on the chemical structure evolution during the pyrolysis of lump coal is of
great significance for revealing the pyrolysis mechanism in fixed-bed gasifier. In this paper …

Pyrolysis of the aromatic-poor and aromatic-rich fractions of bio-oil: Characterization of coke structure and elucidation of coke formation mechanism

Z Xiong, SSA Syed-Hassan, X Hu, J Guo, J Qiu, X Zhao… - Applied Energy, 2019 - Elsevier
Coke formation is one major problem during thermal conversion of bio-oil and its main
components. Fundamental knowledge about the evolution of the structure of cokes is a …

Evolution of coke structures during the pyrolysis of bio-oil at various temperatures and heating rates

Z Xiong, SSA Syed-Hassan, J Xu, Y Wang, S Hu… - Journal of analytical and …, 2018 - Elsevier
Coke can be formed once the bio-oil was heated, even at very low temperatures, causing
almost always serious problems in the upgrading and direct utilization of bio-oil. To minimize …

Morphology and microstructure of co-pyrolysis char from bituminous coal blended with lignocellulosic biomass: Effects of cellulose, hemicellulose and lignin

Z Wu, W Yang, L Chen, H Meng, J Zhao… - Applied Thermal …, 2017 - Elsevier
Co-pyrolysis of coal and lignocellulose biomass and coal is the key step of other co-
thermochemical conversion, and conversion of co-pyrolysis char is the rate-determining step …

Co-pyrolysis of industrial hemp stems and waste plastics into biochar-based briquette: Product characteristics and reaction mechanisms

J Du, F Zhang, J Hu, S Yang, H Liu, H Wang - Fuel Processing Technology, 2023 - Elsevier
Industrial hemp stems and polyvinyl chloride are heat-treated at 400–800° C to prepare
cylindrical biochar-based briquette. The results show that the co-pyrolysis of industrial hemp …

Physico-chemical structure and combustion properties of chars derived from co-pyrolysis of lignite with direct coal liquefaction residue

J Xu, Z Bai, J Bai, L Kong, D Lv, Y Han, X Dai, W Li - Fuel, 2017 - Elsevier
Co-pyrolysis of lignite with direct coal liquefaction residue (DCLR) is a promising method in
the field of clean coal technology. To investigate the influence of DCLR fraction on the …

Pyrolysis of rubber seed oil over high-temperature copper slag: Gas and mechanism of coke formation

J Du, F Zhang, J Hu, S Yang, H Liu, H Wang - Renewable Energy, 2022 - Elsevier
In the process of direct use and upgrading of rubber seed oil (RSO), coke formation is a
severe problem. Therefore, evolution of the cokes structure is a key factor affecting the …

Distinctive hydrodynamics of a micro fluidized bed and its application to gas–solid reaction analysis

F Wang, X Zeng, S Geng, J Yue, S Tang, Y Cui… - Energy & …, 2017 - ACS Publications
The measurement and analysis of reaction behavior, kinetics quantification, and mechanism
clarification for gas–solid reactions are essential to the research and development of …

Changes in char structure during the low-temperature pyrolysis in N2 and subsequent gasification in air of Loy Yang brown coal char

T Li, L Zhang, L Dong, P Qiu, S Wang, S Jiang, CZ Li - Fuel, 2018 - Elsevier
This study aims to investigate the changes in char structure during the pyrolysis in N 2 and
subsequent gasification in air at low temperature in a thermogravimetric analyser. The chars …