Allerton Press
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A Kinetic Study of the Stepwise Thermal Decomposition of Various Coals from Mongolia
Allerton Press - Tập 55 - Trang 1-7 - 2021
The thermolysis of Mongolian coals of different ranks was studied using thermal
analysis (TG/DTG). The stepwise decomposition under conditions of programmed
heating to 1000°C in an atmosphere of argon was found. The kinetic parameters of
pyrolysis were determined based on thermogravimetric analysis with the use of
model-fitting (Coats–Redfern) and model-free (Ozawa–Flynn–Wall) calculation
methods....
Determination of the ash content of solid fuel using annihilation γ-rays
Allerton Press - Tập 48 - Trang 298-301 - 2014
The possibility of the instrumental determination of the ash content of solid
fuel using annihilation γ-rays was demonstrated. Analytical expressions for the
evaluation of sensitivities were obtained. The method was recommended for the
analysis of high-ash coals in large masses without special sample preparation.
Feasibility Analysis of Lignocellulosic Biomass Materials towards Sustainable Biofuel Production
Allerton Press - Tập 57 - Trang 281-295 - 2023
Biomass is a sustainable renewable energy source that can solve energy demand
and environmental pollution. In this present study, four non-edible biomass that
are fast growing in wasteland and forest regions were chosen to check their
feasibility as biofuels for the different thermochemical conversion processes.
Senna auriculata seeds, Albizia lebbeck seed with shell, Leucaena leucocephala
seed, a...
Heats of combustion of oil shale, bitumen, and their mixtures
Allerton Press - Tập 42 - Trang 248-250 - 2008
The net calorific values of oil shale, tar oil, bitumen, and their mixtures were
measured in a calorimetric bomb. It was found that mixtures of oil shale with
tar oil (or bitumen) and coke exhibited the greatest net calorific values. A
decrease in the ash content of these mixtures was found. The use of mixture
components and ash residues as fuel and building material components,
respectively, was ...
Bell-boudoir and water gas shift reactions under conditions of the Fischer-Tropsch synthesis
Allerton Press - Tập 45 - Trang 313-315 - 2011
Underground coal gasification gases contain CO and H2; therefore, they can be
used as raw materials in the Fischer-Tropsch synthesis of higher hydrocarbons.
The profitability can be increased by decreasing the selectivity of this process
for undesirable products. The water gas shift and Bell-Boudoir reactions are
considered; CO2 is formed as a result of these reactions. Promoted and
unpromoted cob...
Distribution of Aromatic Hydrocarbon Biomarkers and Dibenzothiophenes in the Coal of the Sergeevskoe Deposit
Allerton Press - Tập 56 Số 6 - Trang 411-417 - 2022
Production of Biocoal by the Pyrolysis of Biomass
Allerton Press - Tập 53 - Trang 369-376 - 2020
Effective use of biomass has recently received special attention. Pyrolysis is
of great interest among the biomass conversion processes. The pyrolysis
technology allows the production of biocoal (biochar), which can replace fossil
energy fuels. Biocoal can also be converted into liquid fuel for direct use in
vehicles and for the replacement of petroleum products (gasoline, aviation
kerosene, and d...
Stability of coal-water slurries made from ultrafinely divided coals of different metamorphic grades
Allerton Press - Tập 43 - Trang 135-140 - 2009
The feasibility of mechanochemical preparation of coal-water slurries from coals
of different metamorphic grades with the use of various chemical additives was
examined. The effect of surfactants on the settling dynamics of particles in
slurries at different particle sizes and different degrees of coal metamorphism
was revealed as a result of the experiments.
Influence of Electrochemical Processing on the Dispersed Composition of Humic Compounds
Allerton Press - Tập 55 - Trang 78-82 - 2021
A preparation of peat humic acids modified by electrochemical treatment in an
alkaline medium on iron electrodes was obtained. The effect of the
electrochemical treatment on the dispersed composition of the particles of humic
substances was determined using dynamic light scattering (quantum correlation
spectroscopy). It was found that humic compounds in solution predominantly occur
in the form of ...
Cytological structures in the macerals of fossil coals
Allerton Press - Tập 49 - Trang 54-57 - 2015
The cells of fossil plants, which can be observed with the aid of a light
microscope, are described in this work. The samples of fossil coals—anthracites
in polished sections subjected to ion etching—were studied.
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