N-Dodecane Autothermal Reforming Properties of Ni-Al Based Catalysts Prepared by Various Methods

• Published in: Topics in catalysis Vol. 60; no. 9-11; pp. 727 - 734
• Main Authors: Lee, Woo Suk, Ju, Dong Geon, Jung, Suk Yong, Lee, Soo Chool, Ha, Dong Su, Hwang, Byng Wook, Kim, Jae Chang
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.07.2017; Springer Nature B.V
• Subjects: Aluminum; Catalysis; Catalysts; Catalytic converters; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Conversion; Coprecipitation; Diesel fuels; Dodecane; Fourier analysis; Fourier transforms; Impregnation; Industrial Chemistry/Chemical Engineering; Infrared analysis; Infrared spectroscopy; Nickel; Nuclear fuels; Original Paper; Performance evaluation; Pharmacy; Physical Chemistry; Reforming; Spectroscopic analysis; Transmission electron microscopy; X-ray diffraction; Preparation method; Nickel; Dodecane; PMMA; Autothermal reforming
• ISSN: 1022-5528; 1572-9028
• DOI: 10.1007/s11244-017-0777-1

Ni-Al-based catalysts prepared by impregnation, co-precipitation, and polymer-modified incipient methods, referred to as NA-IM, NA-CM, and NA-PM, respectively, were applied to autothermal reforming (ATR) of n -dodecane, since this hydrocarbon exhibits properties similar to those of diesel fuel and can be used as its surrogate. The corresponding catalytic performances were evaluated in terms of H 2 yield and n -dodecane conversion at 750 °C and 12,000 h −1 in a fixed-bed reactor at an S/C molar ratio of 1.23 and an O 2 /C molar ratio of 0.25. NA-CM and NA-PM exhibited similar performances in terms of H 2 yield (1.4) and n -dodecane conversion (90%); however, the performance of NA-IM was inferior to those of other catalysts. The differences between the prepared catalysts were investigated by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, and Brunauer–Emmett–Teller analysis, with the obtained results indicating the importance of well-dispersed Ni species in NA-PM for efficient ATR.