scholarly journals Thermal with Mass Spectroscopic Analysis of Wood and Cereal Biomass Torrefaction

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
René Laryea-Goldsmith ◽  
Chris Woolard
Keyword(s):  
Mass Spectrometry ◽  
Thermogravimetric Analysis ◽  
Energy Density ◽  
Thermal Treatment ◽  
Spectroscopic Data ◽  
Treatment Process ◽  
Spectroscopic Analysis ◽  
Solid Fuels ◽  
Mild Form ◽  
Maize Ear

Torrefaction is a mild form of pyrolysis that, when applied to biomass, has the effect of improving the energy density of biomass-derived solid fuels. In this study, thermogravimetric analysis (coupled with mass spectrometry) was applied to two biomass fuels (pine wood and white maize ear) to investigate a potential representative torrefaction thermal treatment process. The mass loss from the torrefaction process was indicative of emission of aliphatic hydrocarbons, evidenced by mass spectroscopic data and it is evident that optimal torrefaction conditions are determined by the type of biomass to which torrefaction processing is applied.

Potential of Upgrading Domestic Biomass into a Higher Energy Density via Torrefaction Process

2013 ◽  
Vol 795 ◽  
pp. 620-625
Author(s):  
A.M. Iqbal ◽  
Z.A. Zainal ◽  
A.M. Mustafa Al Bakri ◽  
M. Mazlan ◽  
S.N. Soid ◽  
...  
Keyword(s):  
Thermogravimetric Analysis ◽  
Energy Density ◽  
Thermal Treatment ◽  
Heating Temperature ◽  
Energy Output ◽  
Light Weight ◽  
Fixed Carbon ◽  
Heating Value ◽  
Wood Sawdust ◽  
Treatment Step

Torrefaction is a thermal treatment step in a relatively low temperature range of 240-300°C, which aims to produce a higher energy biomass in terms of low heating value (LHV) and light weight properties. Biomass in wood (sawdust) was used in this work due availability in tropical climate and relatively cheap. LHV of torrified sawdust was found to be increases as heating temperature increased, in absence of oxygen content. This is enhanced by way of decomposing the hemicelluloses fraction. The thermogravimetric analysis (TGA) records the changes occurred in fixed carbon, volatile and ash in which it was recorded that an increase of fixed carbon and ash is seen in the increases of temperature and a decrease of volatile is vice versa. The study provides a clearer picture of the result obtained from TGA and HHV which improvise the biomass into higher energy output.

scholarly journals Improvements of dielectric properties and energy storage performances in BaTiO3/PVDF nanocomposites by employing a thermal treatment process

2018 ◽  
Vol 08 (06) ◽  
pp. 1850043 ◽  
Author(s):  
Yue-Mao Dang ◽  
Ming-Sheng Zheng ◽  
Jun-Wei Zha
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Energy Density ◽  
Thermal Treatment ◽  
Polyvinylidene Fluoride ◽  
Treatment Process ◽  
Nanocomposite System ◽  
Void Defects ◽  
Energy Storage Properties ◽  
Storage Properties

The influence of thermal treatment on the dielectric properties and energy storage performances of a classical dielectric nanocomposite system (barium titanate/polyvinylidene fluoride PVDF) was discussed systematically. The results demonstrated that the permittivity of thermal treated nanocomposites increased and dielectric loss decreased compared with the untreated system. In addition, the energy density was also greatly improved due to the inclined residual polarization. For example, the energy density of the treated nanocomposite with 50[Formula: see text]vol.% nanofillers was 3.14 times higher than the untreated nanocomposite at 50[Formula: see text]MV/m. Moreover, the charge–discharge efficiency was also promoted from 6.36% to 56.89%. According to the viewpoint of microstructure, the improvement of the dielectric and energy storage properties would be ascribed to the suppression on void defects in the interphase of dielectric nanocomposite by employing the thermal treatment process. Finally, thermal treatment turns out to be a simple and an effective method to improve the dielectric performances and energy storage properties in the dielectric nanocomposites.

scholarly journals Thermogravimetric analysis in the study of solid fuels

2016 ◽  
Vol 10 ◽  
pp. 00109 ◽  
Author(s):  
Robert Wróblewski ◽  
Bartosz Ceran
Keyword(s):  
Thermogravimetric Analysis ◽  
Solid Fuels

Thermal treatment for the removal of mercury from solid fuels

2013 ◽  
pp. 557-561
Author(s):  
M Wichliński ◽  
R Kobyłecki ◽  
M Ścisłowska ◽  
Z Bis
Keyword(s):  
Thermal Treatment ◽  
Solid Fuels

scholarly journals Using Thermal Treatment Process to Enhance Anodic Oxidation TiO2 Nanotubes with High Degradation Effect of Methylene Blue

2018 ◽  
pp. 655 ◽  
Author(s):  
Wei Chien ◽  
Chi-Yu Lin ◽  
Shang-Te Tsai ◽  
Cheng-Fu Yang ◽  
Chiu-Chen Chang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Thermal Treatment ◽  
Anodic Oxidation ◽  
Tio2 Nanotubes ◽  
Treatment Process ◽  
Degradation Effect

scholarly journals Two new α-Methoxy-γ-Pyrones From the Mangrove Sediment-Derived Streptomyces psammoticus SCSIO NS126

2021 ◽  
Vol 16 (9) ◽  
pp. 1934578X2110414
Author(s):  
Kunlong Li ◽  
Mengdie Zhou ◽  
Ziqi Su ◽  
Xiliang Yang ◽  
Xuefeng Zhou ◽  
...  
Keyword(s):  
Inhibitory Activity ◽  
Spectroscopic Data ◽  
Spectroscopic Analysis ◽  
Mangrove Sediment ◽  
Natural Sources ◽  
Fermentation Conditions ◽  
Acetylcholinesterase Inhibitory Activity ◽  
Actinomycete Strain

Two new α-methoxy- γ-pyrone analogs, 2-methoxy-3-methyl-5,6-diethyl- γ-pyrone (2) and 2-methoxy-3,5-dimethyl-6-propyl- γ-pyrone (3), together with 2-methoxy-3,5-dimethyl-6-ethyl- γ-pyrone (1), firstly isolated from natural sources, were obtained from the EtOAc-solube extract of the mangrove sediment-derived actinomycete strain Streptomyces psammoticus SCSIO NS126, under the optimized fermentation conditions. Their structures were elucidated by detailed spectroscopic analysis and by comparison of their spectroscopic data with those reported in the literature. Those α-methoxy-γ-pyrones were evaluated for their acetylcholinesterase inhibitory activity; however, none of them exhibited obvious activity. Moreover, their biosynthetic relationship with piericidins was also discussed.

scholarly journals A NEW CYTOTOXIC DOLABELLANE FROM THE INDONESIAN SOFT CORAL Anthelia sp.

2013 ◽  
Vol 13 (3) ◽  
pp. 216-220 ◽  
Author(s):  
Anggia Murni ◽  
Novriyandi Hanif ◽  
Junichi Tanaka
Keyword(s):  
Mass Spectrometry ◽  
Drug Development ◽  
Ethyl Acetate ◽  
Spectroscopic Data ◽  
Soft Coral ◽  
Ethyl Acetate Extract ◽  
2D Nmr ◽  
Cancer Drug ◽  
Nmr Data ◽  
Anti Cancer

One new dolabellane (1) and two known diterpenoids stolonidiol (2) and clavinflol B (3) have been isolated from the ethyl acetate extract of the Indonesian soft coral Anthelia sp. A new compound 1 exhibited a moderate cytotoxicity against NBT-T2 cells at 10 µg/mL, while known compounds 2 and 3 showed cytotoxicity at 1 and 0.5 µg/mL, respectively. Structure of the new compound 1 was elucidated by interpretation of NMR spectroscopic data (1D and 2D NMR data) and mass spectrometry (ESIMS data) as well as comparison with those of related ones. This finding should be useful for anti cancer drug development of the promising dolabellane-types compound.

Synthesis, characterization, and structures of zircona- and boracyclosiloxanes with ferrocenyl substituents

2002 ◽  
Vol 80 (11) ◽  
pp. 1469-1480 ◽  
Author(s):  
Karena Thieme ◽  
Sara C Bourke ◽  
Juan Zheng ◽  
Mark J MacLachlan ◽  
Fojan Zamanian ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Differential Scanning Calorimetry ◽  
Thermogravimetric Analysis ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
The Novel ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Multinuclear Nmr Spectroscopy

The novel zirconatetraferrocenylcyclotrisiloxane Cp2Zr(OSiFc2)2O (6), dizirconatetraferrocenylcyclotetrasiloxane [Cp2Zr(OSiFc2)O]2 (7), boratetraferrocenylcyclotrisiloxane (C6H5)B(OSiFc2)2O (8), and diboratetraferrocenylcyclotetrasiloxane [(C6H5)B(OSiFc2)O]2 (9) with ferrocenyl (Fc = Fe(η-C5H4)(η-C5H5)) substituents at silicon have been prepared from the reactions of Cp2Zr(NMe2)2 and PhBCl2 with diferrocenylsilanediol Fc2Si(OH)2 (3) and tetraferrocenyldisiloxanediol [Fc2SiOH]2O (5). The compounds were characterized by mass spectrometry, elemental analysis, UV–vis, IR, Raman, and multinuclear NMR spectroscopy, as well as single crystal X-ray diffraction. Thermogravimetric analysis and differential scanning calorimetry investigation of 6–9 showed that the cycles decompose before they can undergo any thermal ring-opening polymerization. In addition, no polymerization was detected in the presence of either KOSiMe3 or HOTf. The bulky ferrocenyl substituents on the Si atoms are likely to be at least partially responsible for the inability of these heterocycles to undergo ring-opening polymerization. Key words: heterocyclosiloxanes, ferrocenyl.

Thermogravimetric analysis–mass spectrometry (TGA–MS) of hydromagnesite from Dujiali Lake in Tibet, China

2018 ◽  
Vol 133 (3) ◽  
pp. 1429-1437 ◽  
Author(s):  
Yongjie Lin ◽  
Mianping Zheng ◽  
Chuanyong Ye ◽  
Ian M. Power
Keyword(s):  
Mass Spectrometry ◽  
Thermogravimetric Analysis
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