Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Variables Influencing VOC Abatement in a UV Photoreactor
KTH, School of Chemical Science and Engineering (CHE).
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Variabler som påverkar minskning av VOC i en UV-fotoreaktor (Swedish)
Abstract [en]

 

Volatile organic compounds (VOes) emitted from industrial plants pose a problem in the form of malodors and harmful effects on health and environment. It is therefore of interest to develop efficient abatement technique s that are less energy consuming and more cost effective than conventional techniques. Advanced oxidation processes (AOPs) are a promising alternative where organics are degraded through oxidation. This can be achieved by irradiation of gases with UV light that generates oxidants such as ozone, hydroxyl radicals and oxygen radica ls.

 

This study has investigated  the effects of ozone generating UV irradiation on the conversion of a model  voe     in a lab sca le reactor. The factors studied were UV power and inlet concentration of   the voe. UY light was emitted by a standard low pressure mercury UY lamp and the voe used in the experiments was hexanal. The reactor was set up in a laboratory fume hood and the outlet concentrations were analyzed   with  a Ge-MS.

The results showed that of the two investigated factors, the concentration of hexanal had the largest effect on the conversio n. The highest conversions were achieved at the lowest concentrations. Increased UY power had a slight effect but far from the effect of the concentration. The highe st achieved conversion in the study was 39% at the lowest concentration and the  highest UY power. The results indicated that there  is one or more limiti ng factors. These could likely  be residence time and flow regime. A simplified

mathe mat ical mode l of the conversion's dependency on UY power and concentrat io n was created using Matlab.

 

Place, publisher, year, edition, pages
2016.
Keyword [en]
voe abatement, UV, photooxidat ion, advanced oxidation processes, hydroxyl radicals, ozone
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-207176OAI: oai:DiVA.org:kth-207176DiVA, id: diva2:1096550
Available from: 2017-05-18 Created: 2017-05-18 Last updated: 2017-05-18Bibliographically approved

Open Access in DiVA

No full text in DiVA

By organisation
School of Chemical Science and Engineering (CHE)
Chemical Engineering

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 1856 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf