Results 51 to 60 of about 1,510,051 (362)

Financial Risks of Investments in Coal [PDF]

open access: yes, 2011
Analyzes the regulatory, commodity, and construction risks of investing in coal mining and coal-fired power plants. Examines industry analysts' consensus on viable alternatives to coal, including natural gas, solar, wind, and energy ...
Amy Galland, Leslie Lowe, Tom Sanzillo
core  

Facile Preparation of Carbon Membranes Derived from a Fluorenyl‐Containing Polyimine for Selective Hydrogen Separation

open access: yesAdvanced Functional Materials, EarlyView.
A fluorenyl‐containing polyimine is introduced as a simple, scalable precursor for high‐performance carbon membranes. The precursor's intrinsic kinked structure enables defect‐free membrane formation with enhanced hydrogen permeance and excellent ideal selectivities for key industrial gas pairs (H2/N2, H2/CH4, and H2/CO2), offering a practical route ...
Clara Coiana   +5 more
wiley   +1 more source

A Study on the Hard Coal Grindability Dependence on Selected Parameters

open access: yesEnergies, 2021
A very important aspect of proper preparation of the coal mixture for the coking process is its appropriate grinding. One of the parameters describing the energy input required for grinding is the Hardgrove index.
Krzysztof Kogut   +7 more
doaj   +1 more source

EXPERIENCE AND LESSONS LEARNED IN PREPARING THE 'CLEAN COAL - GREEN KUZBASS' INTEGRATED SCIENTIFIC AND TECHNICAL PROJECT [PDF]

open access: bronze, 2022
I.A. Ganieva   +4 more
openalex   +1 more source

Digitizing the Filtration Interface: A Smart, Modular Janus Wood Platform for Self‐Reporting Oil/Water Remediation

open access: yesAdvanced Functional Materials, EarlyView.
This work developed a smart Janus wood membrane integrating asymmetric wettability with built‐in electrical sensing for oil‐water separation. The membrane achieved > 99.5% separation efficiency and high flux by leveraging wood's natural anisotropic pore structure.
Kaiwen Chen   +10 more
wiley   +1 more source

Co-firing of coal and woody biomass under conditions of reburning technology with natural gas

open access: yesInternational Journal of Renewable Energy Development, 2023
It is a continuous imperative to establish the most efficient process of conversion of primary energy from fuel through combustion, which also has the least possible harmful effect on the environment. In this time of expressed demands for decarbonisation,
Nihad Hodžić, Kenan Kadic
doaj   +1 more source

Characterization of coal products from high temperature processing of Usibelli low-rank coals [PDF]

open access: yes, 1991
This research project was conducted in association with Gilbert/Commonwealth Inc. as part of an overall techno-economic assessment of high temperature drying of low-rank coals. This report discusses the characteristics of the dried/pyrolyzed products of
Li, YuFu   +3 more
core  

The evaluation of a risk degree for the process of a brown coal spontaneous ignition on dumps with using of modern numeric methods [PDF]

open access: yes, 2018
The article is a summary of information about evaluation of a risk degree for a brown coal spontaneous ignition which is realized on the base of a database analysis of information about the development of stative quantities and desorbated gases in the ...
Blata, Jan   +4 more
core   +1 more source

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

open access: yesAdvanced Materials, EarlyView.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang   +11 more
wiley   +1 more source

Geological and Geochemical Features of Alborz Basin Coal Deposits, Iran [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2012
The Alborz coal basin is located in northern part of Iran. The coal deposits of Shahrood in eastern Alborz, Zirab in central Alborz and Abyek in western Alborz were studied as typical coalfields of the basin.
M. Yazdi
doaj  

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