Results 111 to 120 of about 469,716 (286)

The Effect of Oxidation on Coal’s Molecular Structure and the Structure Model Construction of Oxidized Coal Molecular

open access: yesProcesses
Three kinds of 1/3 coking coals with different degrees of oxidation were used for this study in Inner Mongolia, China. Using analytical testing methods such as X-ray photoelectron spectroscopy (XPS), nuclear magnetic resonance carbon spectroscopy (13C-NMR) and Fourier transform infrared spectroscopy (FT-IR), combined with computer-aided software such ...
Dahu Li   +4 more
openaire   +1 more source

Interaction of metals with humic acid isolated from oxidized coal

open access: yes, 2007
The sorption behaviour of divalent cations M2+ (Cu, Pb and Zn) and trivalent cations M2+ (Fe, Al) with humic acid isolated from oxidized coal (Hazro,SE Anatolia,Turkey) was followed in aqueous solution.
Baysal, A.   +3 more
core   +1 more source

Granular Bed Filtration of Coal Pyrolysis Gas: Effects of Media Reactivity on Dust Removal and Products

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Granular bed filtration is a promising technology for removing dust from high‐temperature coal pyrolysis gas. In this work, the reactivity of coal pyrolysis products over ceramsite, char, ultrastable Y‐type (USY) zeolite, and quartz particles was compared.
Shuaiqiang Yang   +4 more
wiley   +1 more source

ENVIRONMENT PROTECTION THROUGH DETECTION OF HOT SPOTS USING THERMOGRAPHY IN COAL DEPOSITS BEFORE SELF IGNITION [PDF]

open access: yesAnalele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2009
In this paper is presented a way to contribute to the environmental protection when it comes to coal which waits in big deposits to be burned for energy production.
Alina DINCĂ , Constantin CERCEL
doaj  

Enhancing the Performance of Aqueous Lithium‐Ion Batteries via N‐Methylpyrrolidone Additive

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Aqueous lithium‐ion batteries (ALIBs) have garnered significant attention in the field of energy storage due to their inherent safety. However, their practical application is severely constrained by a narrow electrochemical window and electrolyte crystallization at low temperatures.
Zhiwei Shi   +5 more
wiley   +1 more source

Experiments methane production from biodegradation of coal residue caused by water-soaked oxidation in goaf areas

open access: yesMeitan xuebao
Coalbed gas bioengineering in goaf areas is an effective technical means to realize the resource utilization of residual coal in mines. After oxidation during the coal mining process and water immersion during the later closed period, the structure of ...
Jinwei ZHANG   +4 more
doaj   +1 more source

Advancing Environmental Sustainability: The Role of Artificial Intelligence in Monitoring, Predicting, and Controlling Sulfur Dioxide Emissions

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Air pollution from sulfur dioxide (SO2) emissions poses significant threats to environmental sustainability, public health, and climate change efforts. Despite advances in monitoring and regulatory frameworks, traditional methods often fall short in accuracy, scalability, and efficiency.
Turkan Kopac
wiley   +1 more source

Electrospun PVDF/BaTiO3‐TiO2 Nanocomposite Yarns for Piezoelectric Energy Harvesting

open access: yesJournal of Applied Polymer Science, EarlyView.
Hybrid BTO‐TiO2 nanofillers integrated into electrospun PVDF fibers significantly enhance β‐phase formation and piezoelectric performance. The resulting nanocomposite fibers and twisted yarns generate high voltage and power output under mechanical stimulation.
Swathi Yempally   +4 more
wiley   +1 more source

Coal and the Environment

open access: yes, 1973
12 pages; available for download at the link below.Outlined in this booklet are the accomplishments and goals of the dedicated researchers who are working daily to forge a cooperative link between the production and utilization of coal and the ...
National Coal Association
core   +1 more source

Thermal Stability of Aliphatic and Semiaromatic Polyamides: Tailoring the Choice of Isothermal Aging Temperature by Using Kinetic Models of Degradation

open access: yesJournal of Applied Polymer Science, EarlyView.
Thermogravimetric analysis was performed to study the degradation of aliphatic and semiaromatic polyamides intended for the electrical insulation of future electric aircraft. Using the TGA results, the Flynn and Wall method and Toop's model, the activation energies for the degradation processes were calculated, and kinetic models of the degradation ...
Julien Chedaille   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy