Title page for etd-0720105-161929


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URN etd-0720105-161929
Author Chung-po Pan
Author's Email Address No Public.
Statistics This thesis had been viewed 5577 times. Download 5109 times.
Department Environmental Engineering
Year 2004
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Study on the Fuel NOx Formation for Oxidation of Air-Borne Nitrogen-Containing VOC by Regenerative Thermal Oxidizer
Date of Defense 2005-07-02
Page Count 71
Keyword
  • NOx
  • RTO
  • VOCs
  • Abstract In this study, a regenerative thermal oxidizer (RTO) was used to test the relationship between VOC concentration and nitrogen oxides(NOx) formed, and to estimate its performance. The RTO is electrically heated and contains two 0.152 m × 0.14 m × 1.0 m (L × W × H) beds both packed with gravel particles of around 1.11 cm in average diameter to a height of 1.0 m. The bed has a void fraction of 0.416.
    Experiments include two phases: (1) tests to find the VOC destruction and NOx formed with DMF only in the influent air stream in the following condition: setting temperature Tset=700-900oC, flowrate Q=0.5-1.0 Am3/min, influent concentration Co=0-500ppm, shift time ts=1.5 min. and before that, to test the effect to thermal recovery efficiency and pressure drop. (2) tests to find the VOC destruction and NOx formed for the air stream with MEK/DMF mixed in the influent air stream in the following condition: setting temperature Tset=600-900oC ,flowrate Q=0.5 Am3/min, influent MEK/DMF ratio =100/100,200/100,500/100(ppm/ppm), shift time ts=1.5 min. and before that, to test the effect to thermal recovery efficiency and pressure drop.
      Result show : (1)there have no NOx formed in cool-bed with DMF only in the influent air stream. DMF destruction is proportional to influent concentration(low Co > high Co ) and setting temperature(900 > 800 > 700oC).NOx formed is inversely proportional to Co.(2)in the phase two Experiment, DMF destruction is proportional to add MEK in. NOx formed is inversely proportional to Co. MEK/DMF ratio is proportional to (NOx formed/DMF removed) at Tset=600oC,but not closely related during Tset=700-800oC.NO2 formation is significant at Tset=800 oC. (3)Ergun equation is suitable to estimate pressure drop of RTO.
    Advisory Committee
  • Qi-can Lin - chair
  • Kang-xing Chen - co-chair
  • Ming-xian Chou - advisor
  • Files
  • etd-0720105-161929.pdf
  • indicate in-campus access immediately and off_campus access in a year
    Date of Submission 2005-07-20

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