Nickel hexaaluminate-containing catalyst for reforming hydrocarbons in the presence of carbon dioxide

US9475037B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Stephan Schunk · Heidelberg, DE
• Ekkehard Schwab · Neustadt, DE
• Andrian Milanov · Mannheim, DE
• Guido Wasserschaff · Neckargemünd, DE
• Thomas Roussiere · Mannheim, DE
• Gerhard Cox · Bad Dürkheim, DE
• Bernd Hinrichsen · Stuttgart, DE
• Ulrich Floerchinger · Dudenhofen, DE

Key dates

• Filing date: Mar 6, 2014
• Grant date: Oct 25, 2016
• Expiry date: Mar 6, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a nickel hexaaluminate-comprising catalyst for reforming hydrocarbons, preferably methane, in the presence of carbon dioxide, which comprises hexaaluminate in a proportion in the range from 65 to 95% by weight, preferably from 70 to 90% by weight, and a crystalline, oxidic secondary phase selected from the group consisting of LaAlO3, SrAl2O4 and BaAl2O4 in the range from 5 to 35% by weight, preferably from 10 to 30% by weight. The BET surface area of the catalyst is ≧5 m2/g, preferably ≧10 m2/g. The molar nickel content of the catalyst is ≦3 mol %, preferably ≦2.5 mol % and more preferably ≦2 mol %. The interlayer cations are preferably Ba and/or Sr. The process for producing the catalyst comprises the steps: (i) production of a mixture of metal salts, preferably nitrate salts of Ni and also Sr and/or La, and a nanoparticulate aluminum source, (ii) molding and (iii) calcination. The catalyst of the invention is brought into contact with hydrocarbons, preferably methane, and CO2 in a reforming process, preferably at a temperature of >800° C. The catalyst is also distinguished by structural and preferred properties of the nickel, namely that the nickel partic…