Nickel-Promoted Catalysts in the Reforming of n-Butane with CO2 or H2O

• Published in: Adsorption Science & Technology Vol. 19; no. 6; pp. 455 - 464
• Main Authors: Pańczyk, Monika, Giecko, Grzegorz, Gac, Wojciech, Pasieczna, Sylwia, Stasińska, Beata, Borowiecki, Tadeusz
• Format: Journal Article Conference Proceeding
• Language: English
• Published: London, England SAGE Publications 01.01.2001; Multi Science
• Subjects: Catalysis; Catalysts: preparations and properties; Chemistry; Exact sciences and technology; General and physical chemistry; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Water; Lanthanide; Barium; Hydrocarbon; Carbon dioxide; Cerium; Temperature effect; Transition metal; Modified catalyst; Catalytic reforming; Alkaline earth metal; Molybdenum; Supported catalyst; Promoter; Programmed temperature; Butane; Heterogeneous catalysis; Tungsten; Alkane; Nickel; Oxidation; Steam reforming; Surface area; Potassium
• ISSN: 0263-6174; 2048-4038
• DOI: 10.1260/0263617011494312

Studies of the reforming of n-butane by steam and carbon dioxide have been undertaken employing commercial catalysts such as Ni/α-Al2O3 modified by small additions of promoters such as K, Ba, Ce, W and Mo compounds. It was found that promoters improved the resistance of the catalyst towards coking, with this effect being smaller where CO2 was employed in the reforming reaction than when steam was used. The dynamics of the growth of the carbon deposit on the catalyst surface depended on the promoters employed as well as on the operating conditions; however, in the CO2 reforming of n-butane, such coking was more pronounced than in steam reforming. Use of the TPO method with oxygen or CO2 did not reveal considerable differences between the coke deposits formed during the reforming of n-butane with CO2 or H2O on the catalysts examined.