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Catalyst news

03.01.2014  | 

Keywords: [catalyst] [refining] [petrochemicals]

Catalyst development—both fundamental and applied science

Haldor Topsøe’s HyBRIM catalyst technology is an improved production technique for both CoMo and NiMo hydrotreating catalysts. Combining the BRIM technology (Fig. 1) with an improved catalyst preparation step leads to a metal-slab structure that optimizes interaction between active metal structures and the catalyst carrier. Type II site activity is influenced by metal-slab and carrier interaction.

 
  Fig. 1.  Haldor Topsøe’s developments
  in hydroprocessing technology over the past
  30+ years.

Type II direct-desulfurization sites, located on the edges of the sulfide CoMo/NiMo slabs, are responsible for the second step in the hydrogenation route, i.e., sulfur extraction. The HyBRIM technology’s influence on this interaction results in increased activity of both the direct and the hydrogenation sites. This is due to stronger BRIM functionality on the basal plane of the sulfided slabs. The HyBRIM catalyst is said to exhibit the same high stability as the lastest BRIM catalysts.

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