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LUND UNIVERSITY LIBRARIES

Definition of a system to extract hot gas from an entrained flow gasifier

Krüger, Jonas (2013) In LUTMDN/TMHP--13/5288--SE
Department of Energy Sciences
Abstract
This project work covers the design and construction of a new probe system for hot gas
analysis in an entrained flow gasifier. The aim is a probe that can be used more flexibly
than the present system. As a further aim, the condensation of trace materials has to be
prevented. First, a short overview over current techniques to analyse the product gas in
a gasification process is given. Continuing, the report describes the finding and assessing
of several possible principles of hot gas extraction from a gasification process using simulations
in ANSYS Fluent. The best performing design based on defined trace component
condensation is built for a verification experiment and tested under controlled conditions
in a tube furnace.... (More)
This project work covers the design and construction of a new probe system for hot gas
analysis in an entrained flow gasifier. The aim is a probe that can be used more flexibly
than the present system. As a further aim, the condensation of trace materials has to be
prevented. First, a short overview over current techniques to analyse the product gas in
a gasification process is given. Continuing, the report describes the finding and assessing
of several possible principles of hot gas extraction from a gasification process using simulations
in ANSYS Fluent. The best performing design based on defined trace component
condensation is built for a verification experiment and tested under controlled conditions
in a tube furnace. Verification experiments comprise temperature measurements and analysis
of retrieved samples via x-ray induced fluorescence. Temperature measurements show
that the planned effect of mixture cooling is exceeded by far by convective cooling of the
probe. Although simulations were promising, the approach is not applicable under current
operating conditions due to problems with the measurement system. Furthermore,
the amount of condensed trace material in the retrieved samples proves not to be sufficient
for quantitative analysis via x-ray fluorescence. An alternative system to retrieve hot gas
while maintaining it at high temperatures out of the gasifier is then modeled. (Less)
Please use this url to cite or link to this publication:
author
Krüger, Jonas
supervisor
organization
year
type
H1 - Master's Degree (One Year)
subject
keywords
gasifier extract gas
publication/series
LUTMDN/TMHP--13/5288--SE
report number
5288
ISSN
0282-1990
language
English
id
4057014
date added to LUP
2013-09-19 14:40:31
date last changed
2013-09-19 14:40:31
@misc{4057014,
  abstract     = {This project work covers the design and construction of a new probe system for hot gas
analysis in an entrained flow gasifier. The aim is a probe that can be used more flexibly
than the present system. As a further aim, the condensation of trace materials has to be
prevented. First, a short overview over current techniques to analyse the product gas in
a gasification process is given. Continuing, the report describes the finding and assessing
of several possible principles of hot gas extraction from a gasification process using simulations
in ANSYS Fluent. The best performing design based on defined trace component
condensation is built for a verification experiment and tested under controlled conditions
in a tube furnace. Verification experiments comprise temperature measurements and analysis
of retrieved samples via x-ray induced fluorescence. Temperature measurements show
that the planned effect of mixture cooling is exceeded by far by convective cooling of the
probe. Although simulations were promising, the approach is not applicable under current
operating conditions due to problems with the measurement system. Furthermore,
the amount of condensed trace material in the retrieved samples proves not to be sufficient
for quantitative analysis via x-ray fluorescence. An alternative system to retrieve hot gas
while maintaining it at high temperatures out of the gasifier is then modeled.},
  author       = {Krüger, Jonas},
  issn         = {0282-1990},
  keyword      = {gasifier extract gas},
  language     = {eng},
  note         = {Student Paper},
  series       = {LUTMDN/TMHP--13/5288--SE},
  title        = {Definition of a system to extract hot gas from an entrained flow gasifier},
  year         = {2013},
}