니켈 담지촉매의 니켈 담지량에 따른 활성 변화

• 영문명: Activity Changes of Supported Nickel Catalysts with Respect to Ni Loading
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 김상범(Kim SangBum) 박은석(Park EunSeok) 천한진(Cheon HanJin) 김영국(Kim YoungKook) 김명수(Kim MyungSoo) 박홍수(Park HongSoo) 함현식(Hahm HyunSik)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제20권 제3호, 230~236쪽, 전체 7쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2003.09.30

영문 초록

Synthesis gas is commercially produced by a steam reforming process. However, the process is highly endothermic and energy-consuming. Thus, this study was conducted to produce synthesis gas by the partial oxidation of methane to decrease the energy cost. Supported Ni catalysts were prepared by the impregnation method. To examine the activity of the catalysts, a differential fixed bed reactor was used, and the reaction was carried out at 750{sim}850^{circ}C and 1 atm. The fresh and used catalysts were characterized by XRD, XPS, TGA and AAS. The highest catalytic activity was obtained with the 13wt% Ni/MgO catalyst, with which methane conversion was 81%, and H2 and CO selectivities were 94% and 93%, respectively. 13wt% Ni/MgO catalyst showed the best MgNiO2 solid solution state, which can explain the highest catalytic activity of the 13wt% Ni/MgO catalyst.

키워드

synthesis gas partial oxidation Ni catalysts solid solution