Steam gasification of Mongolian coals

Kuznetsov, Petr; Kolesnikova, S. M.; Кузнецова, Л. И.; Tarasova, L. S.; Ismagilov, Z. R.

doi:10.3103/s0361521915020068

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…In paper [9], authors investigated a catalytic effect on the process of interaction between carbon and water steam. The use of a catalyst is examined; however, the possibility of increasing the catalytic action was not addressed.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Obtaining synthesis-gas by the stone coal steam conversion using technology of aerosol nanocatalysis

Luhovskoi

Glikin

Kudryavtsev

et al. 2017

EEJET

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Heating is conducted by means of electric heating spiral (12), onto which ceramic rings are mounted. Reaction chamber is rotated by electric motor (9) and the transfer mechanism (3). The transfer mechanism consists of a host and slave pulleys and a flexible item -the belt.…”

Section: Schematic Of the Laboratory Installationmentioning

confidence: 99%

Obtaining synthesis-gas by the stone coal steam conversion using technology of aerosol nanocatalysis

Luhovskoi

Glikin

Kudryavtsev

et al. 2017

EEJET

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“…Carbonization products from brown coal gave increased gasification activity as a result of increased carbon compound interaction with water vapor (Kuznetsov et al 2015). Steam gasification of sewage sludge increased the hydrogen yield three-fold compared with air gasification (Nipattummakul et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Reaction Behavior of Albizia gummifera Wood under Steam Gasification with Varied Partial Pressures and Gasification Temperatures

Oluoti¹,

Richards²

2016

BioResources

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The astronomical increase in global energy demand makes locating energy sources other than fossil fuels worthwhile. The use of tropical biomass wood waste as a renewable energy source was investigated in this study. The thermal conversion analysis of Albizia gummifera (ayinre) was carried out in a thermobalance reactor via steam gasification under varying temperature (700 to 1000 °C) and steam partial pressure (0.020 to 0.050 MPa). The experimental data was evaluated using three gas-solid reaction models. The modified volume reaction model (mVRM) gave the overall highest coefficient of determination (0.9993) and thereby the best conversion prediction. The observed char activation constant rates (from paired reaction conditions) indicated, on average, an increase in reactivity as the parameters increased. The results showed that the activation energy of the mVRM gave the lowest value (32.54 kJ/mol) compared with those of the shrinking core model (SCM) and the volume reaction model (VRM) (49.29 and 49.89 kJ/mol, respectively).

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“…Much attention is paid in Mongolia to the development of coal processing into environmen-tally friendly energy carriers and valuable chemical substances and carbon materials. The results of the studies of the properties of some low-rank coals in the processes of thermal and thermochemical conversion [2][3][4][5], gasification [3,6], and production of porous carbon materials [7] have been published in the literature. The coking properties of Tavantolgoi coal have been reported in [8,9].…”

Section: Introductionmentioning

confidence: 99%

Key Peculiarities of the Pyrolysis Behavior of Different Rank Coals, and Characterization of the Pyrolysis Products

Kuznetsov¹,

Fetisova²,

Kuznetsova³

et al. 2022

Eurasian Chem. Tech. J.

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The chemical composition, structural and plastometric properties of typical different-ranked coals from Mongolia deposits were studied. The non-isothermal iso-conversion Ozawa-Flynn-Wall method was used to assess kinetic parameters and to differentiate decomposition steps. Key peculiarities of the pyrolysis kinetics of brown and bituminous coals were revealed and discussed in terms of the composition and plastometric properties of coals. Brown coal was shown to undergo three decomposition steps with ever increasing activation energy as temperature increased because of the decomposition of thermally more and more stable molecular fragments. The pyrolysis of bituminous coals occurred in four steps, the activation energy having an extreme mode of temperature dependence. An important new finding was that the temperature range of the second, major pyrolysis step well corresponded to that between the softening and resolidification temperatures according to Gieseler plastometry, so that the decomposition of bituminous coals at the second step proceeded in a fluid-like medium, moreover, with constant activation energy. The yield and composition of the pyrolysis products obtained under isothermal conditions were also characterized depending on coal rank and temperature, and the ways for qualified utiliza tions were offered.

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Steam gasification of Mongolian coals

Cited by 7 publications

References 8 publications

Obtaining synthesis-gas by the stone coal steam conversion using technology of aerosol nanocatalysis

Obtaining synthesis-gas by the stone coal steam conversion using technology of aerosol nanocatalysis

Investigation of the Reaction Behavior of Albizia gummifera Wood under Steam Gasification with Varied Partial Pressures and Gasification Temperatures

Key Peculiarities of the Pyrolysis Behavior of Different Rank Coals, and Characterization of the Pyrolysis Products

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