Results 41 to 50 of about 546 (155)

Catalytic upgrading of coal tar for practical utilization: Catalyst design for hydrofining-based refining, cracking toward fuels and chemicals, and catalytic preparation of carbon material precursors

open access: yesFuel Processing Technology
Coal tar is a by-product of the coal industry and a complex feedstock whose direct utilization is hindered by its high aromaticity, high viscosity and density, diverse impurities, and heavy condensed fractions.
Jun-Ho Cha   +15 more
doaj   +1 more source

THE FUTURE OF THE COAL TAR INDUSTRY [PDF]

open access: yesTextile Institute. Journal. Proceedings and Abstracts, 1916
n ...
openaire   +2 more sources

An optimizing microseismic method for rock burst early warning based on mining production process

open access: yesDeep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han   +6 more
wiley   +1 more source

Spatio-temporal evolution of temperature fields in tar-rich coal and overlying strata during pyrolysis

open access: yesMeitan kexue jishu
In-situ pyrolysis of tar-rich coal is an innovative coal utilization method that heats coal seams by isolating air to extract oil and gas resources. This approach plays a crucial role in improving domestic oil and gas supply and ensuring national energy ...
Jiyuan DUAN   +8 more
doaj   +1 more source

CRUDE COAL TAR IN DERMATOLOGY [PDF]

open access: yesArchives of Dermatology and Syphilology, 1921
Some years ago, Brocq published a note on the use of crude coal tar in cutaneous diseases. He recommended the application of the substance to weeping surfaces in 100 per cent, strength, and he wrote enthusiastically of its beneficial effects. This note reached America, and at the Massachusetts General Hospital we seized on the idea at once and from ...
openaire   +2 more sources

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

open access: yesDeep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu   +6 more
wiley   +1 more source

Evaluation of the thermoplastic behavior of charcoal, coal tar and coking coal blends

open access: yesJournal of Materials Research and Technology, 2020
This work aimed to evaluate the combined use of charcoal (Ch) and coal tar (Tar) as a way to mitigate the negative effects of using biomass in coal blends for cokemaking.
Matheus Fraga   +3 more
doaj   +1 more source

3‐Reactor Chemical Looping System for Point Source CO2 Capture and Subsequent Conversion for Liquid Fuel Production

open access: yesEcoEnergy, EarlyView.
This study presents a novel 3‐reactor chemical looping system for CO2 capture and subsequent utilization with biomass and natural gas for producing liquid fuels. Using Ca2Fe2O5\Fe2O3 oxygen carriers, it achieves 60% CO2 capture efficiency, ∼80% syngas purity, and autothermal operation, offering a scalable, carbon‐negative route to sustainable fuels ...
Krutarth Pandit   +6 more
wiley   +1 more source

Anchoring MoS2 Petal‐Like Nanosheets on Coal‐Based Carbon Nanofibers by Surface Bonding Enable Li+/Na+ Batteries to Achieve Fast‐Charging Capabilities

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The unique structure connected by CS and COS interfacial bonds accelerates the reaction kinetics of lithium/sodium‐ion storage, while the addition of coal led to an increase in the mechanical strength of the carbon nanofibers, which improved the conductivity and stability of the materials.
Zhenjiang Lu   +8 more
wiley   +1 more source

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