A novel fluidized bed drying and density segregation process for upgrading low-rank coals

Nenad Sarunac, Edward K. Levy, Mark Ness, Charles W. Bullinger, Jonathan P. Mathews, Philip M. Halleck

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Lignite and sub-bituminous coals are attractive due to their low cost, low emissions, and high reactivity. However, these coals contain large amounts of moisture, which reduces calorific value and lowers plant efficiency. A novel fluidized bed drying process was developed that uses low-grade waste heat to reduce fuel moisture content of low-rank high-moisture coals and concurrently lowers sulfur and mercury content of dried coal through density segregation. This paper discusses quality improvement of low-rank coals by low-temperature thermal drying, describes changes in microstructure of coal particles and describes the reduction in sulfur and mercury via density segregation during thermal drying of lignite in a specially designed fluidized bed.

Original languageEnglish (US)
Pages (from-to)317-332
Number of pages16
JournalInternational Journal of Coal Preparation and Utilization
Volume29
Issue number6
DOIs
StatePublished - Nov 1 2009

Fingerprint

coal rank
Coal
Fluidized beds
Drying
coal
lignite
Moisture
Lignite
sulfur
moisture
subbituminous coal
Sulfur
Mercury
Calorific value
Bituminous coal
Waste heat
moisture content
microstructure
drying
Microstructure

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology
  • Energy Engineering and Power Technology
  • Mechanical Engineering

Cite this

Sarunac, Nenad ; Levy, Edward K. ; Ness, Mark ; Bullinger, Charles W. ; Mathews, Jonathan P. ; Halleck, Philip M. / A novel fluidized bed drying and density segregation process for upgrading low-rank coals. In: International Journal of Coal Preparation and Utilization. 2009 ; Vol. 29, No. 6. pp. 317-332.
@article{d39609c4b30a45129046478dd048656d,
title = "A novel fluidized bed drying and density segregation process for upgrading low-rank coals",
abstract = "Lignite and sub-bituminous coals are attractive due to their low cost, low emissions, and high reactivity. However, these coals contain large amounts of moisture, which reduces calorific value and lowers plant efficiency. A novel fluidized bed drying process was developed that uses low-grade waste heat to reduce fuel moisture content of low-rank high-moisture coals and concurrently lowers sulfur and mercury content of dried coal through density segregation. This paper discusses quality improvement of low-rank coals by low-temperature thermal drying, describes changes in microstructure of coal particles and describes the reduction in sulfur and mercury via density segregation during thermal drying of lignite in a specially designed fluidized bed.",
author = "Nenad Sarunac and Levy, {Edward K.} and Mark Ness and Bullinger, {Charles W.} and Mathews, {Jonathan P.} and Halleck, {Philip M.}",
year = "2009",
month = "11",
day = "1",
doi = "10.1080/19392691003666387",
language = "English (US)",
volume = "29",
pages = "317--332",
journal = "International Journal of Coal Preparation and Utilization",
issn = "1939-2699",
publisher = "Routledge",
number = "6",

}

A novel fluidized bed drying and density segregation process for upgrading low-rank coals. / Sarunac, Nenad; Levy, Edward K.; Ness, Mark; Bullinger, Charles W.; Mathews, Jonathan P.; Halleck, Philip M.

In: International Journal of Coal Preparation and Utilization, Vol. 29, No. 6, 01.11.2009, p. 317-332.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A novel fluidized bed drying and density segregation process for upgrading low-rank coals

AU - Sarunac, Nenad

AU - Levy, Edward K.

AU - Ness, Mark

AU - Bullinger, Charles W.

AU - Mathews, Jonathan P.

AU - Halleck, Philip M.

PY - 2009/11/1

Y1 - 2009/11/1

N2 - Lignite and sub-bituminous coals are attractive due to their low cost, low emissions, and high reactivity. However, these coals contain large amounts of moisture, which reduces calorific value and lowers plant efficiency. A novel fluidized bed drying process was developed that uses low-grade waste heat to reduce fuel moisture content of low-rank high-moisture coals and concurrently lowers sulfur and mercury content of dried coal through density segregation. This paper discusses quality improvement of low-rank coals by low-temperature thermal drying, describes changes in microstructure of coal particles and describes the reduction in sulfur and mercury via density segregation during thermal drying of lignite in a specially designed fluidized bed.

AB - Lignite and sub-bituminous coals are attractive due to their low cost, low emissions, and high reactivity. However, these coals contain large amounts of moisture, which reduces calorific value and lowers plant efficiency. A novel fluidized bed drying process was developed that uses low-grade waste heat to reduce fuel moisture content of low-rank high-moisture coals and concurrently lowers sulfur and mercury content of dried coal through density segregation. This paper discusses quality improvement of low-rank coals by low-temperature thermal drying, describes changes in microstructure of coal particles and describes the reduction in sulfur and mercury via density segregation during thermal drying of lignite in a specially designed fluidized bed.

UR - http://www.scopus.com/inward/record.url?scp=77952899397&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77952899397&partnerID=8YFLogxK

U2 - 10.1080/19392691003666387

DO - 10.1080/19392691003666387

M3 - Article

AN - SCOPUS:77952899397

VL - 29

SP - 317

EP - 332

JO - International Journal of Coal Preparation and Utilization

JF - International Journal of Coal Preparation and Utilization

SN - 1939-2699

IS - 6

ER -