Novel zeolite-containing particles. The particles are free-flowing, discrete, rounded, rigid, frangible, hollow, and opaque. The shell or wall of each particle is porous to gases and fluids. The particles are useful as catalysts for refining processes. They are essentially completely de-coked upon regeneration, and they retain their catalytic activity even after several cycles of use-regeneration.

Particules zéolite-contenantes de roman. Les particules sont coulant librement, discrètes, arrondi, rigide, fragile, creux, et opaque. La coquille ou le mur de chaque particule est poreux aux gaz et aux fluides. Les particules sont utiles comme catalyseurs pour des processus de raffinage. Elles essentiellement De-sont complètement cokéfiées lors de la régénération, et elles maintiennent leur activité catalytique même après plusieurs cycles d'employer-régénération.

 
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