Nitric oxide reduction with carbon monoxide over copper chromite catalyst = Copper chromite 촉매상에서 일산화탄소에 의한 일산화질소의 환원반응

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Main pollutants in automobile exhaust gases can be controlled by the following reaction in a catalytic reactor. $$NO\,+\,CO\;-\;\frac{1}{2}N_2\,+\,CO_2$$ The reaction was studied in view of the effects of the operating conditions and thermal treating of the catalysts on reaction rates by using copper chromite catalysts in a integral reactor. Two types of copper chromite, normal and spinel type, were used in this experiment. The normal type catalyst contained CuO and $CuCr_2O_4$, and spinel type catalyst was almost pure $CuCr_2O_4$. After thermal treating at 800$^\circ$C for 24 hours, the activity of the spinel type slightly decreased, but that of normal type decreased markedly to 50\% of the thermally untreated one. At low CO concentration $(38)$ CO caused reaction inhibition. By analyzing the experiental data, the following rate equation based on the adsorption control model was obtained. $$r_m = \frac{4.04 \exp(-2600/RT) C_{NO}}{1+1.29 \times 10^5 \exp(-11270/RT)C_{CO}}$$ The system performances were taken at temperature range of 150 - 270$^\circ$C, 1000 to 6000 ppm of No and 1 to 5\% CO, and contact times in the order of tenths of a second.
Advisors
Lee, Won-Kook이원국
Description
한국과학기술원 : 화학공학과,
Publisher
한국과학기술원
Issue Date
1979
Identifier
62433/325007 / 000771139
Language
eng
Description

학위논문 (석사) - 한국과학기술원 : 화학공학과, 1979.2, [ [iv], 80 p. ]

URI
http://hdl.handle.net/10203/30077
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=62433&flag=dissertation
Appears in Collection
CBE-Theses_Master(석사논문)
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