서지주요정보
$N_i$/Y-제올라이트 촉매에서의 니켈금속 분포가 일산화탄소의 수소화반응에 미치는 영향 = The influence of nickel metal distribution on the properties of $N_i$/Y-zeolite catalysts for CO hydrogenation
서명 / 저자 $N_i$/Y-제올라이트 촉매에서의 니켈금속 분포가 일산화탄소의 수소화반응에 미치는 영향 = The influence of nickel metal distribution on the properties of $N_i$/Y-zeolite catalysts for CO hydrogenation / 최선엽.
저자명 최선엽 ; Choi, Seon-Yub
발행사항 [서울 : 한국과학기술원, 1987].
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소장정보

등록번호

4104637

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8730

휴대폰 전송

도서상태

이용가능

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반납예정일

초록정보

Changes in the catalytic behaviors of the Ni/Y-zeolite catalysts for CO hydrogenation were investigated with the distribution of nickel metal inside or outside of the zeolite. All the catalysts were prepared by the conventional ion-exchange method. Both the degree of reduction and the distribution of nickel metal were measured quantitatively by using TPR/TPO experiments and were confirmed by TEM and FMR. The sizes of nickel crystallites were determined from X-ray line broadening, TEM, and hydrogenation chemisorption. CO hydrogenation reaction was performed in a differential reactor operating at atmospheric pressure, temperature of 270℃, and $H_2$/CO ratio of 3. Nickel metal distribution affected the activity and product distribution significantly. With increasing fraction of nickel metal inside the zeolite the specific activity continued to decrease, while the production of long chain and olefinic hydrocarbons was enhanced significantly. Especially when all the nickel metals were restricted within the pores of the zeolite, a bimodal hydrocarbon product distribution of $C_1$ and $C_4$ was observed. This was ascribed to the dimerization of the primarily formed ethylene to butene on the active species of $Ni^+$.

서지기타정보

서지기타정보
청구기호 {MCE 8730
형태사항 [iii], 54 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Seon-Yub Choi
지도교수의 한글표기 : 임선기
지도교수의 영문표기 : Son-Ki Ihm
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 49-54
주제 Catalysts.
Zeolites.
수소화. --과학기술용어시소러스
촉매. --과학기술용어시소러스
제올라이트. --과학기술용어시소러스
Hydrogenation.
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