Results 101 to 110 of about 4,188,576 (233)

CO‐Adsorption on MgO Revisited: Polarization‐Resolved Identification of Step Edges as the Dominant Defects on MgO(100) and MgO(110)

open access: yesAngewandte Chemie International Edition, EarlyView.
By combining polarization‐resolved IRRAS with hybrid HSE06 DFT calculations, we establish site‐specific vibrational fingerprints, adsorption geometries, and binding energies for CO on wide‐band‐gap MgO surfaces. Low‐coordinated Mg4c2+ step‐edge sites, rather than terrace Schottky defects, are identified as the dominant binding and reactive sites, with ...
Wangtao Li   +9 more
wiley   +1 more source

Research on Deep Separation Technology of Multi–Source By–Products in Coking Coal

open access: yesChemEngineering
This study proposes considering the effective re–benefication of coal middlings and other such considered waste materials as a way to ensure that clean coal in coal by–products can be extracted and effectively utilized, saving costs and reducing coal ...
Andile Khumalo   +3 more
doaj   +1 more source

Coal Preparation for Coal Utilization Purposes

open access: yes, 1983
More and more bituminous coal is being cleaned every year, bot h deep and strip mined bituminous coal. At this time in the United States approximately 60.7% deep mine and 18.7% strip mine or 33.8% of all bituminous coal is cleaned in a preparation plant.
Larsen, Donald H. P.E.
core  

Exploring Influence of MgO/Na2O on Melting Characteristics and Viscosity–Temperature Characteristics of Coal Slags Under Entrained Flow Gasification Condition

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Characteristics of high alkali in Zhundong coal ash may cause ash‐related slag discharge problems at entrained‐flow‐bed (EFB) gasifier. In this study, through exploring melting characteristics and viscosity–temperature characteristics, it is found that MN05, MN14, and MN23 show low FTs (< 1160°C).
Meng Li   +3 more
wiley   +1 more source

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

Recovery of coal fines from preparation plant effluents. Final technical report, September 1, 1990--August 31, 1991

open access: yes, 1991
The objectives of this project were to test and demonstrate the feasibility of recovering coal fines that are currently disposed of with coal preparation plant effluent streams and producing a fine clean coal product that can be blended with the plant ...
Choudhry, V.
core   +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

Mathematical Modeling for Demurrage Reduction in Coal Transportation for an Indian Thermal Power Plant [PDF]

open access: yes
Competitive pressures on power plants have seen them attempting to reduce their operating expenses for profitable operations. In India, the plants use wagons of the Indian Railways to transport coal from the mines (in case of domestic coal) or from the ...
Pappu Sriharsha   +3 more
core  

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

Reformation Scheme of Coal Separation System of Coal Preparation Plant of Huoerxinhe

open access: yesGong-kuang zidonghua, 2012
The paper introduced coal separation process of coal preparation plant of Huoerxinhe, found out rising cause of clean coal ash separated by spiral separator through analysis and test.
WANG Jin-ya
doaj  

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