Catalyst from flame-spray pyrolysis and catalyst for autothermal propane dehydrogenation

US8680005B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Stefan Hannemann · Munich, DE
• Dieter Stützer · Marloffstein, DE
• Goetz-Peter Schindler · Mannheim, DE
• Peter Pfab · Schwarzheide, DE
• Frank Kleine Jäger · Bad Dürkheim, DE
• Dirk Großschmidt · Mannheim, DE

Key dates

• Filing date: Jan 24, 2012
• Grant date: Mar 25, 2014
• Expiry date: Apr 29, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2235/15
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a method of production of catalyst particles, comprising platinum and tin and also at least one further element, selected from lanthanum and cesium, on zirconium dioxide as support, comprising the steps: preparation of one or more solutions containing precursor compounds of Pt, Sn and at least one further element of La or Cs and also ZrO2, converting the solution(s) to an aerosol, bringing the aerosol into a directly or indirectly heated pyrolysis zone, carrying out pyrolysis, and separation of the particles formed from the pyrolysis gas.Suitable precursor compounds comprise zirconium(IV) acetylacetonate, lanthanum(II) acetylacetonate and cesium acetate, hexamethyldisiloxane, tin 2-ethylhexanoate, platinum acetylacetonate, zirconium(IV) propylate in n-propanol and lanthanum(II) acetylacetonate.The invention also relates to the catalyst particles obtainable using the method according to the invention, and to the use thereof as dehydrogenation catalysts.