Two-dimensional spectroscopic analysis of sulphur group and pyrite transformations in coal coking DOI
Jingbo Chen,

Lechi Zhang,

Xianyou Huang

et al.

Ironmaking & Steelmaking Processes Products and Applications, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

An accurate description of the sulphur migration process and mechanism is essential for guiding selection development desulphurisation technology during coking process, to increase efficiency in use high-sulphur coal decrease content produced coke. However, identified transformation pyrolysis not entirely applicable due variations atmosphere, temperature pressure. This work used numerous characterisation techniques conjunction with experiments quantitatively evaluate both organic inorganic throughout process. The bond-breaking order functional groups was obtained by two-dimensional correlation spectroscopy analysis. results show that mainly occurs below 600 °C 72.8% retained Among them, FeS 2 sulphoxide are completely removed while sulphides reduced 67.9%. sulphone increases 46.1% because sulphoxide. Thiophenes sulphates 32.5% 33.9%, respectively, as a result secondary reactions sulphur-containing gases above 500 °C. Through Noda's theorem, sequence follows: Fe–S bond → thiol C–S alkyl sulphide thiol–SH aliphatic thioether S=O sulphone, bond. By clarifying characteristics different forms, suggestions ideas put forward, which helpful wide utilisation coal.

Language: Английский

Insights into the mechanism of persulfate activation with biochar composite loaded with Fe for 2,4-dinitrotoluene degradation DOI
Xiaodong Li, Huizhen Cao, Yuan Cao

et al.

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 341, P. 117955 - 117955

Published: May 4, 2023

Language: Английский

Citations

21
MS-Based Characterization of Biomass-Derived Materials: Activated Carbons and Solvent Liquefaction Products DOI Open Access
Cristian D. Gutierrez Reyes, Sherifdeen Onigbinde, Ananda S. Amarasekara

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 258 - 258

Published: Jan. 21, 2025

Mass spectrometry (MS) is a powerful analytical technique that widely used to characterize variety of analytes across diverse fields. In the area biomass conversion, which essential for producing sustainable materials and energy, role MS pivotal. Biomass conversion processes, such as solvent liquefaction pyrolysis, generate wide range industrially valuable including bio-based polymers, fuels, activated carbons. However, inherent complexity heterogeneity its transformation products pose significant challenges. Advanced techniques, GC-MS, LC-MS, ICP-MS MALDI-MS, are comprehensive analysis, providing detailed insights into compositions, impurities, potential inhibitors influence process optimization product quality. This review systematically explores recent advancements in MS-based methods analysis biomass-derived products. We discuss fundamental innovations processes highlight applications various techniques assessing chemical these materials. The provided by not only facilitate but also support production high-value from biomass, aligning with ongoing efforts enhance environmental sustainability resource efficiency.

Language: Английский

Citations

0
Triboelectric nanogenerator based on reactivated electrode materials derived from waste alkaline battery: Influence of pyrolysis temperature and surface morphology DOI
Chandrashekhar S. Patil, Qazi Muhammad Saqib, Swapnil R. Patil

et al.

Nano Energy, Journal Year: 2023, Volume and Issue: 121, P. 109205 - 109205

Published: Dec. 19, 2023

Language: Английский

Citations

9
Investigating pyrolysis characteristics of Shengdong coal through Py-GC/MS DOI Creative Commons
Xiaoping Su, Xiangtong Wang, Neng Li

et al.

Open Chemistry, Journal Year: 2023, Volume and Issue: 21(1)

Published: Jan. 1, 2023

Abstract Shengdong coal was single-step and multi-step pyrolyzed by pyrolysis-gas chromatography/mass spectrometry. In the pyrolysis process, Mono-ring aromatics contents reach a maximum value at 800°C, while phenolic are significantly reduced, which might be attributed to dehydroxylation of phenolics. Naphthalene content also reaches 800°C in process; however, naphthalene not detected process. So come from ring-opening multi-ring or cyclization mono-ring Only phenol o -cresol were detected, but no p meanwhile, decreased disappeared suggests that may derived isomerization alkylation phenol. It provides an idea for strengthening more basic research related rapid coal.

Language: Английский

Citations

1
Discrimination of coal geographical origins through HS-GC-IMS assisted with machine learning algorithms in larceny case DOI

Wenhui Lu,

Chunli Ding,

Mingshuo Zhu

et al.

Journal of Chromatography A, Journal Year: 2024, Volume and Issue: 1735, P. 465330 - 465330

Published: Aug. 30, 2024

Language: Английский

Citations

0
Effects of iron oxide minerals on the pyrolysis of polyvinyl chloride: catalytic dechlorination, chlorine capture, and carbon sequestration DOI

Ziyi Ding,

Xiaojuan Chen,

Qingru Xie

et al.

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: unknown, P. 144283 - 144283

Published: Nov. 1, 2024

Language: Английский

Citations

0
Two-dimensional spectroscopic analysis of sulphur group and pyrite transformations in coal coking DOI
Jingbo Chen,

Lechi Zhang,

Xianyou Huang

et al.

Ironmaking & Steelmaking Processes Products and Applications, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

An accurate description of the sulphur migration process and mechanism is essential for guiding selection development desulphurisation technology during coking process, to increase efficiency in use high-sulphur coal decrease content produced coke. However, identified transformation pyrolysis not entirely applicable due variations atmosphere, temperature pressure. This work used numerous characterisation techniques conjunction with experiments quantitatively evaluate both organic inorganic throughout process. The bond-breaking order functional groups was obtained by two-dimensional correlation spectroscopy analysis. results show that mainly occurs below 600 °C 72.8% retained Among them, FeS 2 sulphoxide are completely removed while sulphides reduced 67.9%. sulphone increases 46.1% because sulphoxide. Thiophenes sulphates 32.5% 33.9%, respectively, as a result secondary reactions sulphur-containing gases above 500 °C. Through Noda's theorem, sequence follows: Fe–S bond → thiol C–S alkyl sulphide thiol–SH aliphatic thioether S=O sulphone, bond. By clarifying characteristics different forms, suggestions ideas put forward, which helpful wide utilisation coal.

Language: Английский

Citations

0