http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Esneyder Puello-Polo (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Franklin J. Méndez,Roylena Vargas,Joel Blanco,Yahsé Rojas-Challa,Ernesto Bastardo-González,Jorge A. García-Macedo,Esneyder Puello-Polo,Joaquín L. Brito 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.95 No.-
Ti modified MCM-41-supported NiMo and CoMo catalysts and their respective Ti free reference catalystswere prepared, characterized, and tested for the hydrodesulfurization reactions. The samples weresynthesized by well-known procedures, such as liquid crystal templating and successive impregnationmethod for the supports and catalysts, respectively. Ti precursor was directly incorporated into themicellar solution before adding the silica precursor at different molar Si/Ti ratios (x = 75 and 50). Fouriertransform infrared spectroscopy, solid-state 29Si-nuclear magnetic resonance, small- and wide-angle Xraydiffraction, and nitrogen physisorption were used as characterization techniques. Four sulfidedcatalysts were also characterized by high-resolution transmission electron microscopy. The catalystsshowed important increases in the reaction rates during both thiophene and dibenzothiophenehydrodesulfurization when the support was structurally modified with Ti-atoms. The samples supportedon Ti-MCM-41(75) presented a higher activity than those supported on Ti-MCM-41(50), and they weresuperior to their respective Si-MCM-41-supported NiMoS and CoMoS catalysts, even NiMoTiM75 andCoMoTiM75 catalysts presented better performance compared to the conventional NiMo/Al2O3 andCoMo/Al2O3 catalysts in the DBT hydrodesulfurization. Ti incorporation also enhanced the selectivities tothe hydrogenated products, which could be beneficial to destabilize refractory S-containing molecules.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
