Results 21 to 30 of about 93,370 (205)

Distribution and controlled geological factors of oil-rich coal in shaanxi province

open access: yesMeitan kexue jishu, 2023
The green, clean and efficient utilization of coal is an important way for the sustainable development of coal industry. Shaanxi province is rich in coal resources, which are mainly distributed in the five coal fields in the north of Shaanxi province ...
YANG Fu   +6 more
doaj   +1 more source

Carbon emissions from in-situ pyrolysis of tar-rich coal based on full life cycle analysis method

open access: yesMeitan xuebao, 2023
The control of carbon emissions has already become a great social strategic problem in China which must be solved at present and in the future. It is imperative to carry out safe, efficient, and low-carbon utilizations in the coal industry under the ...
Xiangyu XUE   +4 more
doaj   +1 more source

Quantitative characterization and analysis of pore-fractures in tar-rich coal under high-temperature pyrolysis based on micro-CT imaging

open access: yesFrontiers in Earth Science, 2023
This study investigates pore distribution and permeability behavior of tar-rich coal following high-temperature pyrolysis at 500°C using X-ray computed tomography (CT) scanning. Coal samples post-pyrolysis were CT scanned, generating 1755 cross-sectional
Fu Yang   +9 more
doaj   +1 more source

A critical review on sustainable biochar system through gasification: energy and environmental applications [PDF]

open access: yes, 2017
This review lays great emphasis on production and characteristics of biochar through gasification. Specifically, the physicochemical properties and yield of biochar through the diverse gasification conditions associated with various types of biomass were
Chen, Season S.   +6 more
core   +1 more source

Investigating the impact and reaction pathway of toluene on a SOFC running on syngas [PDF]

open access: yes, 2014
The integration of solid oxide fuel cells (SOFCs) with gasification systems have theoretically been shown to have a great potential to provide highly efficient distributed generation energy systems that can be fuelled by biomass including municipal solid
Aravind   +28 more
core   +1 more source

Application research on the prediction of tar yield of deep coal seam mining areas based on PSO-BPNN machine learning algorithm

open access: yesFrontiers in Earth Science, 2023
There are abundant deep coal resources in northern Shaanxi, but the fragile natural environment in this area hinders the large-scale exploitation of oil-rich coal.
Junwei Qiao   +8 more
doaj   +1 more source

An overview of advances in biomass gasification [PDF]

open access: yes, 2016
Biomass gasification is a widely used thermochemical process for obtaining products with more value and potential applications than the raw material itself.
Anthony, Edward J.   +8 more
core   +1 more source

Effect of Carbon Foam Catalyst on Tar Upgrading During Low Rank Coal Pyrolysis

open access: yesTaiyuan Ligong Daxue xuebao, 2022
Carbon foam catalysts (CF1, CF2, CF3) were prepared by spontaneous foaming method using Liulin coal (LL) as raw materials, and the pyrolysis experiments of Xinjiang Naomaohu long-flame coal (NMH) and Inner Mongolia Shengli lignite coal (SL) were ...
Yuxuan MA   +4 more
doaj   +1 more source

Study on Pore Structure and Fractal Characteristics of Tar-Rich Coal during Pyrolysis by Mercury Intrusion Porosimetry (MIP)

open access: yesGeofluids, 2022
This study aims to show how fractal analysis can be effectively used to characterize the pore structure of porous tar-rich coal. In this study, tar-rich coal pores were obtained by mercury intrusion porosimetry (MIP).
Zhendong Wang   +6 more
doaj   +1 more source

Gas emissions, minerals, and tars associated with three coal fires, Powder River Basin, USA. [PDF]

open access: yes, 2012
Ground-based surveys of three coal fires and airborne surveys of two of the fires were conducted near Sheridan, Wyoming. The fires occur in natural outcrops and in abandoned mines, all containing Paleocene-age subbituminous coals. Diffuse (carbon dioxide
Aggen, Kerry L   +20 more
core   +1 more source

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