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The formation of aerosol particles during combustion of biomass and waste. Final report

Abstract

This thesis describes the formation of aerosol particles during combustion of biomass and waste. The formation of aerosol particles is investigated by studying condensation of alkali salts from synthetic flue gasses in a laboratory tubular furnace. In this so-called laminar flow aerosol condenser-furnace gaseous alkali chlorides are mixed with sulphur dioxide, water vapour and oxygen. At high temperatures the alkali chloride reacts with sulphur dioxide to form alkali sulphate. During subsequent cooling of the synthetic flue gas the chlorides and sulphates condense either as deposits on walls or on other particles or directly from the gas phase by homogenous nucleation. A previously developed computer code for simulation of one-component nucleation of particles in a cylindrical laminar flow is extended to include a homogeneous gas phase reaction to produce gaseous alkali sulphate. The formation of aerosol particles during full-scale combustion of wheat straw is investigated in a 100 MW grate-fired boiler. Finally, aerosols from incineration of waste are investigated during full-scale combustion of municipal waste in a 22 MW grate-fired unit. (BA)
Publication Date:
May 15, 2007
Product Type:
Technical Report
Report Number:
NEI-DK-4996
Resource Relation:
Other Information: Numerical Data
Subject:
09 BIOMASS FUELS; WASTES; COMBUSTION; AEROSOLS; SIMULATION; BENCH-SCALE EXPERIMENTS; EXPERIMENTAL DATA
OSTI ID:
927217
Research Organizations:
Technical Univ. of Denmark, DTU, Dept. of Chemical Engineering, Kgs. Lyngby (DK)
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: Contract FORSKEL-6517; ELKRAFT-2206; TRN: DK0801065
Availability:
Also available at http://130.226.56.153/rispubl/NEI/NEI-DK-4996.pdf; OSTI as DE00927217
Submitting Site:
DK
Size:
171 pages
Announcement Date:
Apr 18, 2008

Citation Formats

Hjerrild Zeuthen, J. The formation of aerosol particles during combustion of biomass and waste. Final report. Denmark: N. p., 2007. Web.
Hjerrild Zeuthen, J. The formation of aerosol particles during combustion of biomass and waste. Final report. Denmark.
Hjerrild Zeuthen, J. 2007. "The formation of aerosol particles during combustion of biomass and waste. Final report." Denmark.
@misc{etde_927217,
title = {The formation of aerosol particles during combustion of biomass and waste. Final report}
author = {Hjerrild Zeuthen, J}
abstractNote = {This thesis describes the formation of aerosol particles during combustion of biomass and waste. The formation of aerosol particles is investigated by studying condensation of alkali salts from synthetic flue gasses in a laboratory tubular furnace. In this so-called laminar flow aerosol condenser-furnace gaseous alkali chlorides are mixed with sulphur dioxide, water vapour and oxygen. At high temperatures the alkali chloride reacts with sulphur dioxide to form alkali sulphate. During subsequent cooling of the synthetic flue gas the chlorides and sulphates condense either as deposits on walls or on other particles or directly from the gas phase by homogenous nucleation. A previously developed computer code for simulation of one-component nucleation of particles in a cylindrical laminar flow is extended to include a homogeneous gas phase reaction to produce gaseous alkali sulphate. The formation of aerosol particles during full-scale combustion of wheat straw is investigated in a 100 MW grate-fired boiler. Finally, aerosols from incineration of waste are investigated during full-scale combustion of municipal waste in a 22 MW grate-fired unit. (BA)}
place = {Denmark}
year = {2007}
month = {May}
}