Vapor phase isomerization of O-xylene at high pressure = 고압 기상 자일렌 이성질화 반응

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High pressure reaction (180.7 psia) behavior of oxylene isomerization using packed bed reactor was studied under various reaction conditions. In comparison with low pressure reaction, high pressure operation under hydrogen atmosphere showed no deactivation and fixed low isomerization selectivity. Pretreatment conditions affected the reaction behavior. Steam treated mordenites, especially cobalt or nickel ion-exchanged mordenites, showed higher activity but lower isomerization selectivity than dry air calcined mordenites. Temperature Programmed Desorption (TPD) using ammonia showed that dry air calcined mordenites had stronger acid sites than steam treated mordenites. In combination with low pressure reaction high pressure reaction data was interpreted from the stand point of acidity and acid strength. Atmosphere had an effect on coke formation. From surface area data and the analysis of trimethylbenzene mechanism of coke formation under different atmospheres was proposed. Effect of temperature, space time, metal loading, metal type and comparison with other catalysts were investigated and discussed.
Advisors
Kim, Young-Gul김영걸
Description
한국과학기술원 : 화학공학과,
Publisher
한국과학기술원
Issue Date
1983
Identifier
63706/325007 / 000811276
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 화학공학과, 1983.2, [ iv, 132 p. ]

URI
http://hdl.handle.net/10203/30161
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=63706&flag=dissertation
Appears in Collection
CBE-Theses_Master(석사논문)
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