Results 111 to 120 of about 159,837 (244)

Determination of the Kinetic Parameters of Thermal Degradation and Hydrodemetallization of a Mixture of the Heavy Fraction of Low-Temperature Coal Tar and Coal Shale

open access: yesEnergies
The laws of thermal degradation of the mixture of the heavy fraction of low-temperature coal tar and coal shale were investigated using dynamic thermogravimetry.
Murzabek Baikenov   +9 more
doaj   +1 more source

Effect of Sulfur on Wood Tar Biopitch as a Sustainable Replacement for Coal Tar Pitch Binders. [PDF]

open access: yesACS Appl Eng Mater, 2023
Shah Z   +4 more
europepmc   +1 more source

Integral throat entrance development, qualification and production for the Antares 3 nozzle [PDF]

open access: yes
Although design analyses of a G-90 graphite integral throat entrance for the Antares 3 solid rocket motor nozzle indicated acceptable margins of safety, the nozzle throat insert suffered a thermostructural failure during the first development firing ...
Clayton, F. I.   +3 more
core   +1 more source

Features of liquid phase oxidation of tar in the presence of modifiers-catalysts [PDF]

open access: yes, 2016
Modifiers that provide catalytic effect in the tar oxidation were cons idered. The use of iron stearate, cobalt salts as modifiers was studied. The modifier concentration in the tar amounted to 5.0% by weight. The tar modification effect on the oxidation
Grushova, E. I., Shrubok, A. O.
core  

Analysis of pore-fracture structure evolution and permeability in tar-rich coal under high-temperature pyrolysis using μCT technology

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
To study the internal evolution characteristics of tar-rich coal under high-temperature pyrolysis and improve pyrolysis efficiency, three-dimensional reconstruction and analysis of tar-rich coal from northern Shaanxi after high-temperature pyrolysis were
Pengfei Jiang   +3 more
doaj   +1 more source

Kinetic Modelling for Tar Evolution and Formation in a Downdraft Gasifier [PDF]

open access: yes, 2018
Biomass gasification modeling is a powerful tool used to optimize the design of a gasifier. A detailed kinetic model was built by the current authors [1] to predict the behavior of air blown downdraft gasifier for a wide range of materials within the
Kumar, U., Paul, M.C., Salem, A.M.
core  

Separation and Analysis of Oxygen-Containing Compounds in a Shaanxi Middle/Low-Temperature Coal Tar. [PDF]

open access: yesACS Omega, 2023
Guo XH   +8 more
europepmc   +1 more source

Axial pressure impact on pyrolysis behavior of Xinjiang coal: An inspiration for in-situ pyrolysis of tar-rich coal

open access: yesFuel Processing Technology
Tar-rich coal in-situ pyrolysis (TCIP) is a green and low-carbon technology that extracts tar and gas from underground tar-rich coal seams. Overburden pressures are a crucial factor for TCIP that differs from conventional ground pyrolysis.
Bingyang Kou   +7 more
doaj   +1 more source

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