Nico Zobel Technische Universität Berlin / Berlin ... - EVUR - TU Berlin
Nico Zobel Technische Universität Berlin / Berlin ... - EVUR - TU Berlin
Nico Zobel Technische Universität Berlin / Berlin ... - EVUR - TU Berlin
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<strong>Nico</strong> <strong>Zobel</strong><br />
<strong>Technische</strong> <strong>Universität</strong> <strong>Berlin</strong> / <strong>Berlin</strong> Institute of Technology<br />
Department of Energy Engineering<br />
Chair for Energy Process Technology and<br />
Conversion Technologies for Renewable Energies (<strong>EVUR</strong>)<br />
Fasanenstr. 89, D-10623 <strong>Berlin</strong><br />
nico.zobel@tu-berlin.de
Intention:<br />
time for complete analysis<br />
days<br />
hours<br />
minutes<br />
seconds<br />
Motivation<br />
SPA<br />
tar guideline<br />
SPA<br />
tar guideline<br />
GC-MS<br />
CON-TAR<br />
1000 10000 100000<br />
MBMS<br />
TOF-MS<br />
estimated equipment cost in EUR<br />
Field of application: research and industry,<br />
for permanent monitoring/control of gas quality<br />
08.06.2009 Gas Analysis Workshop @ 19th EU BC+E, <strong>Berlin</strong> 2011 2
calibration<br />
light source<br />
(LASER)<br />
CONTAR – CONtinuos TAR-analyzer<br />
principle setup<br />
sample exhaust<br />
measuring<br />
cell<br />
compact<br />
spektrometer<br />
USB<br />
beam-dump<br />
compakt-PC<br />
data I/O<br />
08.06.2009 Gas Analysis Workshop @ 19th EU BC+E, <strong>Berlin</strong> 2011 3<br />
USB<br />
signal<br />
(0-20 mA)
producer<br />
gas flow<br />
Sampling<br />
Possible impact of tar concentration gradient in pipe cross section<br />
particle<br />
filter<br />
Sampling line CON-TAR<br />
Impinger<br />
bottles<br />
08.06.2009 Gas Analysis Workshop @ 19th EU BC+E, <strong>Berlin</strong> 2011 4<br />
vent
intensity [counts, a. u.]<br />
600<br />
400<br />
200<br />
0<br />
Principle Results<br />
measured spectrum<br />
fitted spectrum<br />
fluorene<br />
naphthalene<br />
phenanthrene<br />
pyrene<br />
300 400 500 600<br />
wavelength [nm]<br />
08.06.2009 Gas Analysis Workshop @ 19th EU BC+E, <strong>Berlin</strong> 2011 5
Results and Exeriences<br />
Robustness: optical system + measuring cell very robust<br />
impinger bottles not practical, constant volume flow important<br />
Operation: can be learned within minutes<br />
Sensitivity: Naphthalene > 50 mg/Nm3, Phenol > 200 mg/Nm3 (?)<br />
Selectivity: depends on mixture, some fluorescence peaks overlap<br />
Repitition: results every 10 seconds<br />
Reproducibility: ?<br />
Stability: maximum continuous test duration: two weeks,<br />
no failures so far<br />
Benchmark: +/- 20% compared to GC/MS<br />
08.06.2009 Gas Analysis Workshop @ 19th EU BC+E, <strong>Berlin</strong> 2011 6
Status:<br />
Status<br />
• periphery not yet ready for fully automatic operation<br />
• rather costly parts for excitation (uv-laser) and detection (spectrometer);<br />
depending on desired details in measurement cost reduction possible<br />
Future work:<br />
(1) Improve periphery:<br />
- Replace impinger bottles & pump with ejector pump (+ burner)<br />
- Control sampling volume flow<br />
(2) Implementation and testing of less expensive light sources and detectors<br />
08.06.2009 Gas Analysis Workshop @ 19th EU BC+E, <strong>Berlin</strong> 2011 7
Thank you for yor attention!<br />
08.06.2009 Gas Analysis Workshop @ 19th EU BC+E, <strong>Berlin</strong> 2011 8
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