Experimental evaluation of main emissions during coal processing waste combustion

Margarita A. Dmitrienko, Jean C. Legros, Pavel A. Strizhak

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The total volume of the coal processing wastes (filter cakes) produced by Russia, China, and India is as high as dozens of millions of tons per year. The concentrations of CO and CO2 in the emissions from the combustion of filter cakes have been measured directly for the first time. They are the biggest volume of coal processing wastes. There have been many discussions about using these wastes as primary or secondary components of coal-water slurries (CWS) and coal-water slurries containing petrochemicals (CWSP). Boilers have already been operationally tested in Russia for the combustion of CWSP based on filter cakes. In this work, the concentrations of hazardous emissions have been measured at temperatures ranging from 500 to 1000°С. The produced CO and CO2 concentrations are shown to be practically constant at high temperatures (over 900°С) for all the coal processing wastes under study. Experiments have shown the feasibility to lowering the combustion temperatures of coal processing wastes down to 750–850°С. This provides sustainable combustion and reduces the CO and CO2 emissions 1.2–1.7 times. These relatively low temperatures ensure satisfactory environmental and energy performance of combustion. Using CWS and CWSP instead of conventional solid fuels significantly reduces NOx and SOx emissions but leaves CO and CO2 emissions practically at the same level as coal powder combustion. Therefore, the environmentally friendly future (in terms of all the main atmospheric emissions: CO, CO2, NOx, and SOx) of both CWS and CWSP technologies relies on low-temperature combustion.

Original languageEnglish
Pages (from-to)299-305
Number of pages7
JournalEnvironmental Pollution
Volume233
DOIs
Publication statusPublished - 1 Feb 2018

Fingerprint

Coal
Slurries
Processing
Carbon Monoxide
Water
Petrochemicals
Temperature
Russia
Powders
Boilers
India
China

Keywords

  • Coal processing wastes
  • Coal-water slurry containing petrochemicals
  • Greenhouse gases
  • Hazardous emissions
  • Maximum concentrations

ASJC Scopus subject areas

  • Toxicology
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Experimental evaluation of main emissions during coal processing waste combustion. / Dmitrienko, Margarita A.; Legros, Jean C.; Strizhak, Pavel A.

In: Environmental Pollution, Vol. 233, 01.02.2018, p. 299-305.

Research output: Contribution to journalArticle

@article{b4aaa338e59746a7bc7a7d82f5ef5c21,
title = "Experimental evaluation of main emissions during coal processing waste combustion",
abstract = "The total volume of the coal processing wastes (filter cakes) produced by Russia, China, and India is as high as dozens of millions of tons per year. The concentrations of CO and CO2 in the emissions from the combustion of filter cakes have been measured directly for the first time. They are the biggest volume of coal processing wastes. There have been many discussions about using these wastes as primary or secondary components of coal-water slurries (CWS) and coal-water slurries containing petrochemicals (CWSP). Boilers have already been operationally tested in Russia for the combustion of CWSP based on filter cakes. In this work, the concentrations of hazardous emissions have been measured at temperatures ranging from 500 to 1000°С. The produced CO and CO2 concentrations are shown to be practically constant at high temperatures (over 900°С) for all the coal processing wastes under study. Experiments have shown the feasibility to lowering the combustion temperatures of coal processing wastes down to 750–850°С. This provides sustainable combustion and reduces the CO and CO2 emissions 1.2–1.7 times. These relatively low temperatures ensure satisfactory environmental and energy performance of combustion. Using CWS and CWSP instead of conventional solid fuels significantly reduces NOx and SOx emissions but leaves CO and CO2 emissions practically at the same level as coal powder combustion. Therefore, the environmentally friendly future (in terms of all the main atmospheric emissions: CO, CO2, NOx, and SOx) of both CWS and CWSP technologies relies on low-temperature combustion.",
keywords = "Coal processing wastes, Coal-water slurry containing petrochemicals, Greenhouse gases, Hazardous emissions, Maximum concentrations",
author = "Dmitrienko, {Margarita A.} and Legros, {Jean C.} and Strizhak, {Pavel A.}",
year = "2018",
month = "2",
day = "1",
doi = "10.1016/j.envpol.2017.10.090",
language = "English",
volume = "233",
pages = "299--305",
journal = "Environmental Pollution",
issn = "0269-7491",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Experimental evaluation of main emissions during coal processing waste combustion

AU - Dmitrienko, Margarita A.

AU - Legros, Jean C.

AU - Strizhak, Pavel A.

PY - 2018/2/1

Y1 - 2018/2/1

N2 - The total volume of the coal processing wastes (filter cakes) produced by Russia, China, and India is as high as dozens of millions of tons per year. The concentrations of CO and CO2 in the emissions from the combustion of filter cakes have been measured directly for the first time. They are the biggest volume of coal processing wastes. There have been many discussions about using these wastes as primary or secondary components of coal-water slurries (CWS) and coal-water slurries containing petrochemicals (CWSP). Boilers have already been operationally tested in Russia for the combustion of CWSP based on filter cakes. In this work, the concentrations of hazardous emissions have been measured at temperatures ranging from 500 to 1000°С. The produced CO and CO2 concentrations are shown to be practically constant at high temperatures (over 900°С) for all the coal processing wastes under study. Experiments have shown the feasibility to lowering the combustion temperatures of coal processing wastes down to 750–850°С. This provides sustainable combustion and reduces the CO and CO2 emissions 1.2–1.7 times. These relatively low temperatures ensure satisfactory environmental and energy performance of combustion. Using CWS and CWSP instead of conventional solid fuels significantly reduces NOx and SOx emissions but leaves CO and CO2 emissions practically at the same level as coal powder combustion. Therefore, the environmentally friendly future (in terms of all the main atmospheric emissions: CO, CO2, NOx, and SOx) of both CWS and CWSP technologies relies on low-temperature combustion.

AB - The total volume of the coal processing wastes (filter cakes) produced by Russia, China, and India is as high as dozens of millions of tons per year. The concentrations of CO and CO2 in the emissions from the combustion of filter cakes have been measured directly for the first time. They are the biggest volume of coal processing wastes. There have been many discussions about using these wastes as primary or secondary components of coal-water slurries (CWS) and coal-water slurries containing petrochemicals (CWSP). Boilers have already been operationally tested in Russia for the combustion of CWSP based on filter cakes. In this work, the concentrations of hazardous emissions have been measured at temperatures ranging from 500 to 1000°С. The produced CO and CO2 concentrations are shown to be practically constant at high temperatures (over 900°С) for all the coal processing wastes under study. Experiments have shown the feasibility to lowering the combustion temperatures of coal processing wastes down to 750–850°С. This provides sustainable combustion and reduces the CO and CO2 emissions 1.2–1.7 times. These relatively low temperatures ensure satisfactory environmental and energy performance of combustion. Using CWS and CWSP instead of conventional solid fuels significantly reduces NOx and SOx emissions but leaves CO and CO2 emissions practically at the same level as coal powder combustion. Therefore, the environmentally friendly future (in terms of all the main atmospheric emissions: CO, CO2, NOx, and SOx) of both CWS and CWSP technologies relies on low-temperature combustion.

KW - Coal processing wastes

KW - Coal-water slurry containing petrochemicals

KW - Greenhouse gases

KW - Hazardous emissions

KW - Maximum concentrations

UR - http://www.scopus.com/inward/record.url?scp=85032268872&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85032268872&partnerID=8YFLogxK

U2 - 10.1016/j.envpol.2017.10.090

DO - 10.1016/j.envpol.2017.10.090

M3 - Article

VL - 233

SP - 299

EP - 305

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

ER -