Results 21 to 30 of about 50,602 (140)

Effect of Particle Size on Flow Mode and Flow Characteristics of Pulverized Coal

open access: yesKONA Powder and Particle Journal, 2014
This paper reports on an extensive experimental campaign aimed at studying on effect of particle size and flow mode on the flow characteristics of pulverized coal.
Haifeng Lu   +3 more
doaj   +1 more source

Integrated analysis of geofiltrational parameters in the context of underground coal gasification relying upon calculations and modeling [PDF]

open access: yes, 2018
Objective of the paper is to substantiate and implement the integrated approach aimed at the studies of filtration and mass-transfer processes within roof rocks of coal seams in the context of their underground ...
Dereviahina, Nataliia   +7 more
core   +1 more source

Carbon emission accounting and carbon reduction analysis for deep coal underground gasification to hydrogen

open access: yesMeitan kexue jishu, 2023
Innovating coal development and utilization technology to reduce carbon emissions during the whole life cycle of coal from production to utilization is a coal-based clean energy route that meets the characteristics of China's energy endowments ...
LIU Shuqin, LIU Huan, JI Yutong, GUO Wei
doaj   +1 more source

Energy Efficiency and Economic Aspects of Mining Wastes Utilization within the Closed Cycle of Underground Gas Generator [PDF]

open access: yes, 2017
Energy efficiency of coal gasification with possible utilization of mining wastes within ecologically closed gas generator cycle has been considered.
CABANA, Edgar Cáceres   +3 more
core   +1 more source

Gasification under CO2–Steam Mixture: Kinetic Model Study Based on Shared Active Sites

open access: yesEnergies, 2017
In this work, char gasification of two coals (i.e., Shenfu bituminous coal and Zunyi anthracite) and a petroleum coke under a steam and CO2 mixture (steam/CO2 partial pressures, 0.025–0.075 MPa; total pressures, 0.100 MPa) and CO2/steam chemisorption of ...
Xia Liu   +3 more
doaj   +1 more source

Investigation of Underground Coal Gasification in Laboratory Conditions: A Review of Recent Research

open access: yesEnergies, 2023
The underground coal gasification (UCG) technology converts coal into product gas and provides the option of environmentally and economically attractive coal mining. Obtained syngas can be used for heating, electricity, or chemical production.
Ján Kačur   +3 more
doaj   +1 more source

Removal of Solid Impurities from Coal Gasification Wastewater by Sand Filtration [PDF]

open access: yesE3S Web of Conferences, 2021
Coal gasification wastewater has complex pollutant components and high COD value, and contains a variety of toxic and harmful substances. The treatment of coal gasification wastewater has always been one of the important problems in the development of ...
Dai Li, Wang Hualin
doaj   +1 more source

Kinetic study of coals gasification into carbon dioxide atmosphere [PDF]

open access: yes, 2015
The solid fuel gasification process was investigated to define chemical reactions rate and activation energy for a gas-generator designing and regime optimizing.
Korotkikh, Aleksandr Gennadievich   +1 more
core   +1 more source

Experimental Study on the Transformation of Biomass and Coal Under Different Atmospheric Conditions

open access: yesChemical Engineering Transactions, 2017
The exploitation of fossil fuels and greenhouse gas emissions have brought great attention to the utilization of biomass fuel resources. The scholars researcher Were studied with thermo gravimetric mass spectrometry instrument in this paper, four kinds ...
Guiqiu Su
doaj   +1 more source

Gasification of coal-derived chars in synthesis gas mixtures under intraparticle mass-transfer-controlled conditions [PDF]

open access: yes, 1986
A model has been formulated to describe the quasi-steady-state gasification of coal-derived chars in gas mixtures where both the reactants carbon dioxide and steam, and the gasification products carbon monoxide and hydrogen are present.
Bliek, A.   +2 more
core   +2 more sources

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