TY - GEN
T1 - Vaneri- ja lastulevyteollisuuden sivutuotteiden seospolton savukaasupäästöt - esitutkimus
T2 - Puuenergian teknologiaohjelman vuosiseminaari
AU - Vesterinen, Raili
PY - 2002
Y1 - 2002
N2 - Emission measurement results of from plywood combustion
have only been
published in one publication. Temperature of exhaust
gases, retention time and
carbon dioxide and oxygen contents effect strongly on the
benzene, toluene and
formaldehyde contents of flue gases. The concentrations
of these increase rapidly
as the CO content of flue gases exceeds 4000 ppmv.
Nitrogen oxide emissions of chipboard combustion,
published in literature, vary
in between 263-765 mg/m3, at O2
content 11%. HCl content of flue gases was
1.0-104 mg/m3, at O2 content 11%. Highest concentration
was obtained in a test
carried out with a small combustion device, operated with
particleboard treated
with ammonium chloride hardener. Carbon monoxide
concentration varied in
the range 45-1165 mg/m3, at O2 content 11%. Even higher
concentrations were
obtained in the tests carried out with some small
combustion devices. Concentrations
of dibenzo-p-dioxins (PCDD) and dibenzofurans (PCDF) were
0.019-
4.13 TEQ ng/m3, at O2 level 11%. In many tests the
results have been under the
limit value 0.1 I-TEQ ng/m3 at O2 level 11%.
The limit values for the particle content and particle
emissions set in the environmental
permits, granted by the regional environment centres,
varied in between 50 mg/m3 at O2 level 6% and 400 mg/m3
at O2 level 6%. Particulate emissions
limit was 50-100 mg/MJ. There were few restrictions for
CO emissions in
the environmental permits. They, as well as the
particulate emission levels
seemed to be tighter for younger plants than for the
older ones. In the permits
there were set limits for nitrogen oxides and sulphur
dioxide only in a couple of
cases.
AB - Emission measurement results of from plywood combustion
have only been
published in one publication. Temperature of exhaust
gases, retention time and
carbon dioxide and oxygen contents effect strongly on the
benzene, toluene and
formaldehyde contents of flue gases. The concentrations
of these increase rapidly
as the CO content of flue gases exceeds 4000 ppmv.
Nitrogen oxide emissions of chipboard combustion,
published in literature, vary
in between 263-765 mg/m3, at O2
content 11%. HCl content of flue gases was
1.0-104 mg/m3, at O2 content 11%. Highest concentration
was obtained in a test
carried out with a small combustion device, operated with
particleboard treated
with ammonium chloride hardener. Carbon monoxide
concentration varied in
the range 45-1165 mg/m3, at O2 content 11%. Even higher
concentrations were
obtained in the tests carried out with some small
combustion devices. Concentrations
of dibenzo-p-dioxins (PCDD) and dibenzofurans (PCDF) were
0.019-
4.13 TEQ ng/m3, at O2 level 11%. In many tests the
results have been under the
limit value 0.1 I-TEQ ng/m3 at O2 level 11%.
The limit values for the particle content and particle
emissions set in the environmental
permits, granted by the regional environment centres,
varied in between 50 mg/m3 at O2 level 6% and 400 mg/m3
at O2 level 6%. Particulate emissions
limit was 50-100 mg/MJ. There were few restrictions for
CO emissions in
the environmental permits. They, as well as the
particulate emission levels
seemed to be tighter for younger plants than for the
older ones. In the permits
there were set limits for nitrogen oxides and sulphur
dioxide only in a couple of
cases.
M3 - Conference article in proceedings
SN - 951-38-5732-8
T3 - VTT Symposium
SP - 223
EP - 229
BT - Puuenergian teknologiaohjelman vuosikirja 2002
PB - VTT Technical Research Centre of Finland
CY - Espoo
Y2 - 18 September 2002 through 19 September 2002
ER -
