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1. Comparison of HTSM and TGA Experiments of Gasification Characteristics of Different Coal Chars and Petcoke

Author:
Liu, Ming; Zhou, Zhihao; Shen, Zhongjie; Liang, Qinfeng; Xu, Jianliang; Liu, Haifeng
Source:
Energy & fuels 2019 v.33 no.4 pp. 3057-3067
ISSN:
1520-5029
Subject:
thermogravimetry,   etc   ; gasification; lignite; temperature;     Show all 4 Subjects
Abstract:
... The thermogravimetric analyzer (TGA) is an ideal experimental method to estimate the gasification kinetics. However, the diffusion resistance was significant in high-temperature gasification process. In this study, comparison of different coal chars and petcoke gasification characteristics between high-temperature stage microscope (HTSM) and TGA experiments at high temperature were carried out. Th ...
DOI:
10.1021/acs.energyfuels.9b00005

2. Thermogravimetric analysis of the co-combustion of residual petrochemical sludge and municipal sewage sludge

Author:
Li, Jinping; Hu, Jieqiong; Wang, Teng; Gan, Jinhua; Xie, Junpu; Shui, Yahui; Liu, Jingxin; Xue, Yongjie
Source:
Thermochimica acta 2019 v.673 pp. 60-67
ISSN:
0040-6031
Subject:
thermogravimetry,   etc   ; combustion; feedstocks; sewage sludge;     Show all 4 Subjects
Abstract:
... The combustion behavior of municipal and residual petrochemical sludge and their co-combustion characteristics has been studied using differential thermal gravimetric (DTG) analysis. These experiments have focused on determining the effect of different heating rates and different sludge compositions on the co-combustion of mixed sludge feedstocks. Comparison of thermogravimetric and DTG results me ...
DOI:
10.1016/j.tca.2019.01.014

3. Gasification reactivity of co-pyrolysis char from coal blended with corn stalks

Author:
Chen, Xiye; Liu, Li; Zhang, Linyao; Zhao, Yan; Qiu, Penghua
Source:
Bioresource technology 2019 v.279 pp. 243-251
ISSN:
0960-8524
Subject:
thermogravimetry,   etc   ; coal; corn stover; gasification; pyrolysis; temperature;     Show all 6 Subjects
Abstract:
... The gasification reactivity of coal and corn stalks co-pyrolyzed char is studied using thermogravimetric analysis, and the influence of co-pyrolysis on co-gasification reactivity is quantitatively characterized by synergy index. The results demonstrate that with increasing the pyrolysis temperature, the gasification reactivity of coal char gradually decreases, however, the gasification reactivity ...
DOI:
10.1016/j.biortech.2019.01.108

4. Kinetics of the pyrolysis process of phthalonitrile resin

Author:
Liang, Bo; Hu, Jianghuai; Yuan, Ping; Li, Chengfeng; Li, Renke; Liu, Yao; Zeng, Ke; Yang, Gang
Source:
Thermochimica acta 2019 v.672 pp. 133-141
ISSN:
0040-6031
Subject:
thermogravimetry,   etc   ; activation energy; kinetics; models; nitrogen; pyrolysis;     Show all 6 Subjects
Abstract:
... Accurately modeling the kinetics of the pyrolysis reaction of phthalonitrile resin was helpful to investigate the pyrolysis mechanisms. To study the pyrolysis kinetics, phthalonitrile resin was measured by thermogravimetric analysis (TGA) at different heating rates in flowing nitrogen. The results indicated that there were two consecutive and overlapping stages in the pyrolysis process. The overla ...
DOI:
10.1016/j.tca.2018.12.025

5. The efficient cyclopolymerization of silyl‐tethered styrenic difunctional monomers Part A Polymer chemistry

Author:
Ferri, Nicolò; Ozaydin, Gul Beste; Zeffiro, Alberto; Nitti, Andrea; Aviyente, Viktorya; Pasini, Dario
Source:
Journal of polymer science 2018 v.56 no.14 pp. 1593-1599
ISSN:
0887-624X
Subject:
thermogravimetry,   etc   ; moieties; polymerization; polymers;     Show all 4 Subjects
Abstract:
... The synthesis and characterization of innovative difunctional styrene‐based monomers and their cyclopolymerization is reported. Difunctional silyl‐based protecting groups with different steric hindrance (either methyl/phenyl or phenyl/phenyl) are used as “tethers” for two 4‐vinylbenzyl reactive moieties. We demonstrate that efficient cyclopolymerization, performed under free‐radical conditions or ...
DOI:
10.1002/pola.29044

6. A novel perspective of dolomite decomposition: Elementary reactions analysis by thermogravimetric mass spectrometry

Author:
Qian, Huang; Kai, Wei; Hongde, Xia
Source:
Thermochimica acta 2019 v.676 pp. 47-51
ISSN:
0040-6031
Subject:
thermogravimetry,   etc   ; carbon dioxide; dolomite; mass spectrometry; reaction mechanisms;     Show all 5 Subjects
Abstract:
... As an important technique to study the characteristic of thermal reactions, thermogravimetric mass spectrometry analysis could explore matter transform and dynamic procedure of thermal reactions in which for most cases the information comes from overall reactions. Therefore disassembling the elementary reactions, by different experimental method on the basis of reaction mechanism, was the key fact ...
DOI:
10.1016/j.tca.2019.03.042

7. Melt spinning of nano-hydroxyapatite and polycaprolactone composite fibers for bone scaffold application

Author:
Xue, Wen; Chen, Peifeng; Wang, Fujun; Wang, Lu
Source:
Journal of materials science 2019 v.54 no.11 pp. 8602-8612
ISSN:
0022-2461
Subject:
thermogravimetry,   etc   ; fabrics; melting; porous media; spinning; thermal stability; tissue engineering;     Show all 7 Subjects
Abstract:
... Textile technology shows great advantages in tissue engineering applications and it is a promising candidate for bone scaffolds fabrication. Composite fibers made from nano-hydroxyapatite (nHA) particles and polycaprolactone (PCL) were prepared by the melt spinning technology. nHA particles with different concentrations (1, 3, 5 and 7 wt%) were loaded into PCL fibers, and their influence on fiber ...
DOI:
10.1007/s10853-019-03475-y

8. Kinetic triplet determination and modified mechanism function construction for thermo-oxidative degradation of waste polyurethane foam using conventional methods and distributed activation energy model method

Author:
Li, Mi; Jiang, Lin; He, Jia-Jia; Sun, Jin-Hua
Source:
Energy 2019 v.175 pp. 1-13
ISSN:
0360-5442
Subject:
thermogravimetry,   etc   ; activation energy; foams; models; polyurethanes; pyrolysis; wastes;     Show all 7 Subjects
Abstract:
... Rapid growth of waste polymers attracts increasing attentions nowadays, and pyrolysis technology is acknowledged as an effective handling way. In this study, waste rigid polyurethane (RPU) was selected to conduct thermogravimetric analysis experiments with four different heating rates. Results showed that the thermo-oxidative degradation of RPU presents a two-main-stage process. Subsequently, ther ...
DOI:
10.1016/j.energy.2019.03.032

9. Volatile matter release from coal at different heating rates –experimental study and kinetic modelling

Author:
Czajka, Krzysztof M.; Modliński, Norbert; Kisiela-Czajka, Anna M.; Naidoo, Reshendren; Peta, Sandile; Nyangwa, Bonny
Source:
Journal of analytical and applied pyrolysis 2019 v.139 pp. 282-290
ISSN:
0165-2370
Subject:
thermogravimetry,   etc   ; coal; data collection; furnaces; models; physicochemical properties; pyrolysis;     Show all 7 Subjects
Abstract:
... The presented paper examines the impact of heating rate on the yield of volatiles and kinetic parameters describing the devolatilization process of sub-bituminous coal. The behaviour of three coals is investigated with the use of two experimental research methods i.e. Thermogravimetric Analysis (TG) and Drop Tube Furnace (DTF). Network models such as FG-DVC and FLASHCHAIN will also used to derived ...
DOI:
10.1016/j.jaap.2019.03.001

10. Influence of particle sizes on combustion characteristics of coal particles in oxygen-deficient atmosphere

Author:
Cong, Kunlin; Zhang, Yanguo; Han, Feng; Li, Qinghai
Source:
Energy 2019 v.170 pp. 840-848
ISSN:
0360-5442
Subject:
thermogravimetry,   etc   ; coal; combustion; guidelines; kinetics; oxygen; particle size; temperature;     Show all 8 Subjects
Abstract:
... The combustion characteristics of coal samples with different particle size were investigated using a thermogravimetric analyzer. Three different heating rates were set in the oxygen-deficient atmosphere of 12 vol % oxygen concentration. Experiments were conducted on four particle sizes with a diameter of 0.6, 1.0, 2.0, and 4.0 mm. It was found that ignition and burnout temperatures of coals rose ...
DOI:
10.1016/j.energy.2018.12.216

11. Evaluation of the applicability of thermogravimetry in the monitoring of the organofunctionalization process of expanded perlite

Author:
Oliveira, Érica Souza; Almeida, Janiele Mayara Ferreira de; Damasceno, Elmar; Fernandes, Nedja Suely
Source:
Thermochimica acta 2019 v.672 pp. 107-117
ISSN:
0040-6031
Subject:
thermogravimetry,   etc   ; adsorbents; adsorption; dyes; liquids; monitoring; perlite; spectroscopy;     Show all 8 Subjects
Abstract:
... The main objective of this work is to evaluate the organofunctionalization of the expanded perlite with orthophenanthroline. Thermogravimetry was used to quantify the orthophenanthroline content incorporated in the material. The thermogravimetric analysis showed that, for very low concentrations, there is no incorporation. However, by increasing the concentration of orthophenanthroline, the proces ...
DOI:
10.1016/j.tca.2018.12.020

12. Liquid-phase exfoliation of graphite into graphene nanosheets in a hydrocavitating ‘lab-on-a-chip’

Author:
Qiu, Xiaoyu; Bouchiat, Vincent; Colombet, Damien; Ayela, Frederic
Source:
RSC advances 2019 v.9 no.6 pp. 3232-3238
ISSN:
2046-2069
Subject:
thermogravimetry,   etc   ; atomic force microscopy; graphene; nanosheets; scanning electron microscopy; surfactants;     Show all 6 Subjects
Abstract:
... Hydrodynamic cavitation ‘on a chip’ has been used to achieve liquid-phase exfoliation of natural graphite to get graphene. We have taken advantage of the small size of such a ‘lab-on-a-chip’ (LOC) with low input-power consumption, to produce afterwards few layers of graphene nanosheets in a surfactant suspension. Characterization of the processed material has been performed by TGA analysis, SEM, T ...
DOI:
10.1039/c8ra05976d

13. Phosphoryl-Ligand Adducts of Rare Earth-TriNOx Complexes: Systematic Studies and Implications for Separations Chemistry

Author:
Cheisson, Thibault; Cole, Bren E.; Manor, Brian C.; Carroll, Patrick J.; Schelter, Eric J.
Source:
ACS sustainable chemistry & engineering 2019 v.7 no.5 pp. 4993-5001
ISSN:
2168-0485
Subject:
thermogravimetry,   etc   ; cations; chemistry; dysprosium; lanthanum; ligands; neodymium; thermodynamics;     Show all 8 Subjects
Abstract:
... Phosphoryl ligands of the general formula O═PR₃ (R = Me, OMe, Et, ⁿBu, Ph, ⁱPr, NMe₂) were coordinated to [Nd(TriNOx)] (TriNOx³– = ([(2-ᵗBuNO)C₆H₄CH₂]₃N)³–), and the resulting complexes were characterized. Solution equilibrium constants for each complex were determined, demonstrating a large range for phosphoryl ligands’ Lewis basicity. Thermogravimetric analyses provided evidence for the qualitat ...
DOI:
10.1021/acssuschemeng.8b05638

14. Experimental study on principles of isothermal dehydration of anthracite

Author:
Laing, Yunpei; Wang, Fakai; Luo, Yongjiang; Wang, Han; Hu, Qianting
Source:
Drying technology 2019 v.37 no.1 pp. 38-46
ISSN:
1532-2300
Subject:
thermogravimetry,   etc   ; drying; evaporation; liquids; mathematical models; micropores; moieties; particle size;     Show all 8 Subjects
Abstract:
... Isothermal dehydration experiments were performed and studied on anthracite. A mathematical model is established for anthracite dehydration to improve the efficient utilization of high-moisture anthracite exploited by water addition technology. Three kinds of high-moisture anthracite with different particle size were treated by isothermal drying methods. Experimental results show that there are tw ...
DOI:
10.1080/07373937.2018.1452254

15. Suitability of 3D-Printed devices for low-temperature geochemical experiments

Author:
Kletetschka, Karel; Rimstidt, J. Donald; Long, Timothy E.; Michel, F. Marc
Source:
Applied geochemistry 2018 v.98 pp. 121-126
ISSN:
0883-2927
Subject:
thermogravimetry,   etc   ; geochemistry; pH; resins; temperature;     Show all 5 Subjects
Abstract:
... Desktop 3D printing stereolithography (SLA) is a fabrication technique based on photopolymerization that can be used to efficiently create novel reaction devices for laboratory geochemistry with complex features (e.g. internal channels, small volumes) that are beyond the capabilities of traditional machining methods. However, the stability of 3D printed parts for low-temperature aqueous geochemica ...
DOI:
10.1016/j.apgeochem.2018.08.012

16. A Co(II) complex from a pyridylamide ligand: synthesis and structural characterization

Author:
Zhu, Xiao-Hong; Jiang, Ding-Yun; Hu, Tao; Li, Deng-Hao
Source:
Zeitschrift für Naturforschung 2018 v.73 no.3-4 pp. 265-268
ISSN:
1865-7117
Subject:
thermogravimetry,   etc   ; cobalt; crystallization; ligands; nitrates;     Show all 5 Subjects
Abstract:
... The hydrothermal reaction of N³,N⁵-di(pyridin-4-yl)pyridine-3,5-dicarboxamide (L) with Co(NO₃)₂·6H₂O and ErCl₃·6H₂O yields a new complex, {[Co(L)₂(NO₃)₁.₁₅(Cl)₀.₈₅]·4DMF}ₙ (1). Complex 1 has been characterized by single-crystal and powder X-ray diffraction, IR, and elemental and thermogravimetric analysis. It crystallizes in the orthorhombic space group Fddd and shows a chain structure. ...
DOI:
10.1515/znb-2017-0199

17. Application of mechanical crushing combined with pyrolysis-enhanced flotation technology to recover graphite and LiCoO2 from spent lithium-ion batteries

Author:
Zhang, Guangwen; He, Yaqun; Wang, Haifeng; Feng, Yi; Xie, Weining; Zhu, Xiangnan
Source:
Journal of cleaner production 2019 v.231 pp. 1418-1427
ISSN:
0959-6526
Subject:
thermogravimetry,   etc   ; X-radiation; crushing; electrodes; electrolytes; graphene; lithium batteries; pyrolysis; recycling; temperature;     Show all 10 Subjects
Abstract:
... In this study, a novel process of mechanical crushing combined with a pyrolysis-enhanced flotation was developed to recover LiCoO2 and graphite from spent lithium-ion batteries, which lays the foundation for the subsequent metallurgical process. Pyrolysis technology was used to solve the problem of low flotation efficiency of electrode materials. The pyrolysis characteristics of the electrode mate ...
DOI:
10.1016/j.jclepro.2019.04.279

18. Fine combustion particles released during combustion of unit mass of beechwood

Author:
Sitek, Tomáš; Pospíšil, Jiří; Poláčik, Ján; Špiláček, Michal; Varbanov, Petar
Source:
Renewable energy 2019 v.140 pp. 390-396
ISSN:
0960-1481
Subject:
thermogravimetry,   etc   ; biomass; combustion; emissions; flue gas; fuels; nitrogen; oxygen; particle size distribution; renewable energy sources;     Show all 10 Subjects
Abstract:
... The combustion of biomass is associated with the production of a significant amount of combustion particles. These particles are entrained by the flue gas from the combustion plant. To assess the type of fuel and the influence of the operating parameters on the fine particle emission, it is useful to know the mass of the fine particles produced at combustion per unit amount of fuel. For this purpo ...
DOI:
10.1016/j.renene.2019.03.089

19. Simulation study on the heat transfer characteristics of a single printed circuit board particle in the pyrolysis process

Author:
Du, Na; Ma, Hongting; Zhang, Hongkuan; Yang, Fan; Li, Zihao
Source:
Fuel processing technology 2019 v.192 pp. 45-56
ISSN:
0378-3820
Subject:
thermogravimetry,   etc   ; anisotropy; chemical bonding; electronic equipment; heat transfer; mathematical models; pyrolysis; specific heat; temperature; thermal conductivity;     Show all 10 Subjects
Abstract:
... In order to investigate the effects of the specific heat, thermal conductivity and heat of pyrolysis reaction on the temperature distribution and temperature variation of a single printed circuit board (PCB) particle during the pyrolysis process, a mathematical model is established and the heat transfer process is simulated. The results show that the effects of the specific heat on the temperature ...
DOI:
10.1016/j.fuproc.2019.04.016

20. Orange peel valorization by pyrolysis under the carbon dioxide environment

Author:
Kwon, Dohee; Oh, Jeong-Ik; Lam, Su Shiung; Moon, Deok Hyun; Kwon, Eilhann E.
Source:
Bioresource technology 2019 v.285 pp. 121356
ISSN:
0960-8524
Subject:
thermogravimetry,   etc   ; biomass; carbon dioxide; carbon monoxide; case studies; dehydrogenation; effluents; oils; orange peels; pyrolysis; temperature;     Show all 11 Subjects
Abstract:
... To valorize biomass waste, pyrolysis of orange peel was mainly investigated as a case study. In an effort to establish a more sustainable thermolytic platform for orange peel, this study particularly employed CO2 as reactive gas medium. Accordingly, this study laid great emphasis on elucidating the mechanistic role of CO2 in pyrolysis of orange peel. The thermo-gravimetric analysis (TGA) confirmed ...
DOI:
10.1016/j.biortech.2019.121356