Influence of lignite petrographic properties for drying characteristics in superheated steam atmosphere

Anna Sciazko, Marcin Zakrzewski, Yosuke Komatsu, Taro Akiyama, Shinji Kimijima, Akira Hashimoto, Naoki Shikazono, Shozo Kaneko, Janusz S. Szmyd

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Polish lignite from Turow mine was experimentally investigated to determine the correlation between specific coal properties originated from geological background and its drying characteristics in the superheated steam atmosphere. A superheated steam fluidized bed dryer (SSFBD) in a self-heat recuperative configuration has a great potential of improving thermal efficiency of a lignite-fired power plant. This configuration enables to reduce heat losses in combustion process of lignite by recovering both of latent heat of vaporization of water inherently kept in the fuel and sensible heat during the fuel processing. However, the optimal design of the dryer requires the fundamental knowledge of drying characteristics in respect to the individual properties of the utilized fuel. The investigated lignite is a representative of Turoszow deposit situated in the extreme south-western part of Poland. The samples represent two different seams which currently are under exploitation and have industrial value: Seams I and II. The proximate and ultimate analyses were conducted for all the samples. Experimental attempts unveiling fundamental drying kinetics were carried out for 5 and 10 mm diameter spherical samples in the superheated steam atmosphere in the temperature range 110-170 oC. Simultaneous and continuous measurements of changes in weight, surface and core temperatures and appearance on each tested sample were carried out for describing drying behavior: moisture content, drying rate and temperature profiles. The time and efficiency of the superheated steam drying depending on the lignite particle size and steam temperature were estimated for all types of investigated samples and shown in the form of average results and individual drying curves. The fundamental studies on correlation between physical properties and drying behavior will be the basis for proposing the innovative and universal design methodology for the industrial lignite pre- Treatment system.

Original languageEnglish
Title of host publicationECOS 2015 - 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
PublisherInternational Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
ISBN (Electronic)9782955553909
Publication statusPublished - 2015
Event28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2015 - Pau, France
Duration: 2015 Jun 292015 Jul 3

Other

Other28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2015
CountryFrance
CityPau
Period15/6/2915/7/3

Fingerprint

Lignite
lignite
Drying
Steam
atmosphere
Temperature
drying
vaporization
temperature
Latent heat
Heat losses
Vaporization
temperature profile
Fluidized beds
moisture content
power plant
Power plants
Moisture
Deposits
Physical properties

Keywords

  • Drying characteristic
  • Lignite upgrading
  • Low-rank coal
  • Superheated steam drying
  • Turow lignite

ASJC Scopus subject areas

  • Engineering(all)
  • Environmental Science(all)
  • Energy(all)

Cite this

Sciazko, A., Zakrzewski, M., Komatsu, Y., Akiyama, T., Kimijima, S., Hashimoto, A., ... Szmyd, J. S. (2015). Influence of lignite petrographic properties for drying characteristics in superheated steam atmosphere. In ECOS 2015 - 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems.

Influence of lignite petrographic properties for drying characteristics in superheated steam atmosphere. / Sciazko, Anna; Zakrzewski, Marcin; Komatsu, Yosuke; Akiyama, Taro; Kimijima, Shinji; Hashimoto, Akira; Shikazono, Naoki; Kaneko, Shozo; Szmyd, Janusz S.

ECOS 2015 - 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sciazko, A, Zakrzewski, M, Komatsu, Y, Akiyama, T, Kimijima, S, Hashimoto, A, Shikazono, N, Kaneko, S & Szmyd, JS 2015, Influence of lignite petrographic properties for drying characteristics in superheated steam atmosphere. in ECOS 2015 - 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2015, Pau, France, 15/6/29.
Sciazko A, Zakrzewski M, Komatsu Y, Akiyama T, Kimijima S, Hashimoto A et al. Influence of lignite petrographic properties for drying characteristics in superheated steam atmosphere. In ECOS 2015 - 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. 2015
Sciazko, Anna ; Zakrzewski, Marcin ; Komatsu, Yosuke ; Akiyama, Taro ; Kimijima, Shinji ; Hashimoto, Akira ; Shikazono, Naoki ; Kaneko, Shozo ; Szmyd, Janusz S. / Influence of lignite petrographic properties for drying characteristics in superheated steam atmosphere. ECOS 2015 - 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems. International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 2015.
@inproceedings{be1d5fb2d11441988abc6aae5083d1f3,
title = "Influence of lignite petrographic properties for drying characteristics in superheated steam atmosphere",
abstract = "Polish lignite from Turow mine was experimentally investigated to determine the correlation between specific coal properties originated from geological background and its drying characteristics in the superheated steam atmosphere. A superheated steam fluidized bed dryer (SSFBD) in a self-heat recuperative configuration has a great potential of improving thermal efficiency of a lignite-fired power plant. This configuration enables to reduce heat losses in combustion process of lignite by recovering both of latent heat of vaporization of water inherently kept in the fuel and sensible heat during the fuel processing. However, the optimal design of the dryer requires the fundamental knowledge of drying characteristics in respect to the individual properties of the utilized fuel. The investigated lignite is a representative of Turoszow deposit situated in the extreme south-western part of Poland. The samples represent two different seams which currently are under exploitation and have industrial value: Seams I and II. The proximate and ultimate analyses were conducted for all the samples. Experimental attempts unveiling fundamental drying kinetics were carried out for 5 and 10 mm diameter spherical samples in the superheated steam atmosphere in the temperature range 110-170 oC. Simultaneous and continuous measurements of changes in weight, surface and core temperatures and appearance on each tested sample were carried out for describing drying behavior: moisture content, drying rate and temperature profiles. The time and efficiency of the superheated steam drying depending on the lignite particle size and steam temperature were estimated for all types of investigated samples and shown in the form of average results and individual drying curves. The fundamental studies on correlation between physical properties and drying behavior will be the basis for proposing the innovative and universal design methodology for the industrial lignite pre- Treatment system.",
keywords = "Drying characteristic, Lignite upgrading, Low-rank coal, Superheated steam drying, Turow lignite",
author = "Anna Sciazko and Marcin Zakrzewski and Yosuke Komatsu and Taro Akiyama and Shinji Kimijima and Akira Hashimoto and Naoki Shikazono and Shozo Kaneko and Szmyd, {Janusz S.}",
year = "2015",
language = "English",
booktitle = "ECOS 2015 - 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems",
publisher = "International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems",

}

TY - GEN

T1 - Influence of lignite petrographic properties for drying characteristics in superheated steam atmosphere

AU - Sciazko, Anna

AU - Zakrzewski, Marcin

AU - Komatsu, Yosuke

AU - Akiyama, Taro

AU - Kimijima, Shinji

AU - Hashimoto, Akira

AU - Shikazono, Naoki

AU - Kaneko, Shozo

AU - Szmyd, Janusz S.

PY - 2015

Y1 - 2015

N2 - Polish lignite from Turow mine was experimentally investigated to determine the correlation between specific coal properties originated from geological background and its drying characteristics in the superheated steam atmosphere. A superheated steam fluidized bed dryer (SSFBD) in a self-heat recuperative configuration has a great potential of improving thermal efficiency of a lignite-fired power plant. This configuration enables to reduce heat losses in combustion process of lignite by recovering both of latent heat of vaporization of water inherently kept in the fuel and sensible heat during the fuel processing. However, the optimal design of the dryer requires the fundamental knowledge of drying characteristics in respect to the individual properties of the utilized fuel. The investigated lignite is a representative of Turoszow deposit situated in the extreme south-western part of Poland. The samples represent two different seams which currently are under exploitation and have industrial value: Seams I and II. The proximate and ultimate analyses were conducted for all the samples. Experimental attempts unveiling fundamental drying kinetics were carried out for 5 and 10 mm diameter spherical samples in the superheated steam atmosphere in the temperature range 110-170 oC. Simultaneous and continuous measurements of changes in weight, surface and core temperatures and appearance on each tested sample were carried out for describing drying behavior: moisture content, drying rate and temperature profiles. The time and efficiency of the superheated steam drying depending on the lignite particle size and steam temperature were estimated for all types of investigated samples and shown in the form of average results and individual drying curves. The fundamental studies on correlation between physical properties and drying behavior will be the basis for proposing the innovative and universal design methodology for the industrial lignite pre- Treatment system.

AB - Polish lignite from Turow mine was experimentally investigated to determine the correlation between specific coal properties originated from geological background and its drying characteristics in the superheated steam atmosphere. A superheated steam fluidized bed dryer (SSFBD) in a self-heat recuperative configuration has a great potential of improving thermal efficiency of a lignite-fired power plant. This configuration enables to reduce heat losses in combustion process of lignite by recovering both of latent heat of vaporization of water inherently kept in the fuel and sensible heat during the fuel processing. However, the optimal design of the dryer requires the fundamental knowledge of drying characteristics in respect to the individual properties of the utilized fuel. The investigated lignite is a representative of Turoszow deposit situated in the extreme south-western part of Poland. The samples represent two different seams which currently are under exploitation and have industrial value: Seams I and II. The proximate and ultimate analyses were conducted for all the samples. Experimental attempts unveiling fundamental drying kinetics were carried out for 5 and 10 mm diameter spherical samples in the superheated steam atmosphere in the temperature range 110-170 oC. Simultaneous and continuous measurements of changes in weight, surface and core temperatures and appearance on each tested sample were carried out for describing drying behavior: moisture content, drying rate and temperature profiles. The time and efficiency of the superheated steam drying depending on the lignite particle size and steam temperature were estimated for all types of investigated samples and shown in the form of average results and individual drying curves. The fundamental studies on correlation between physical properties and drying behavior will be the basis for proposing the innovative and universal design methodology for the industrial lignite pre- Treatment system.

KW - Drying characteristic

KW - Lignite upgrading

KW - Low-rank coal

KW - Superheated steam drying

KW - Turow lignite

UR - http://www.scopus.com/inward/record.url?scp=84978924687&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84978924687&partnerID=8YFLogxK

M3 - Conference contribution

BT - ECOS 2015 - 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems

PB - International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems

ER -