서지주요정보
MCM-41담지 코발트-몰리브데늄 및 니켈-몰리브데늄 촉매의 티오핀 수첨탈황 특성에 관한 연구 = A study on the characteristics of thiophene hydrodesulfurization over MCM-41 supported CoMo and NiMo bimetallic catalysts
서명 / 저자 MCM-41담지 코발트-몰리브데늄 및 니켈-몰리브데늄 촉매의 티오핀 수첨탈황 특성에 관한 연구 = A study on the characteristics of thiophene hydrodesulfurization over MCM-41 supported CoMo and NiMo bimetallic catalysts / 송선기.
저자명 송선기 ; Song, Seon-Ki
발행사항 [대전 : 한국과학기술원, 1999].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8009426

소장위치/청구기호

학술문화관(문화관) 보존서고

MCHE 99019

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

In order to investigate HDS(hydrodesulfurization) characteristics of thiophene, several Mo catalysts supported on zeolite USY, HZSM-5 and MCM-41 were prepared by using incipient wetness impregnation method. Also CoMo and NiMo catalysts supported on MCM-41 were prepared by using the same method in order to investigate the promoting effect of Co or Ni. All catalysts were activated under two different conditions(sulfidation and nitridation followed by sulfidation, respectively). The characteristics of Mo containing zeolite catalysts and of pretreatment on them were investigated by HDS reaction of thiophene, XRD, NH$_3$ TPD, BET, and TGA. The HDS activities of zeolite supported Mo catalysts were equivalent to those of alumina supported Mo catalysts. MCM-41 supported Mo catalysts showed the highest HDS activity among zeolite supported Mo catalysts due to its higher surface area, larger pore channel and mild acidity. However, USY or ZSM-5 supported Mo catalysts were deactivated rapidly owing to the coke developed by the acidity of zeolites. Introduction of Co or Ni to Mo/MCM-41 resulted in a synergistic activity for HDS reaction. This synergistic effect is well known on the CoMo/$Al_2O_3$ catalyst and has become the key issue on this catalytic system. The present result showed that the synergistic effect was also conserved for MCM-41 support and the optimum atomic ratio(Co/Mo) was 1. Metal oxide was found to be converted into nitride or oxynitride through the temperature programmed nitridation. The nitride catalysts showed a lower HDS activity than metal sulfide catalyst.

서지기타정보

서지기타정보
청구기호 {MCHE 99019
형태사항 ix, 81 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Seon-Ki Song
지도교수의 한글표기 : 임선기
지도교수의 영문표기 : Son-Ki Ihm
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 75-79
주제 MCM-41
수첨탈황반응
이원금속촉매
MCM-41
Hydrodesulfurization
Bimetallic catalysts
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