| 摘要 |
<p>The present invention provides a process for the preparation of a catalyst composition which comprises, as first cracking component, a zeolite beta, and a second cracking component selected from (i) crystalline molecular sieves having pores with diameters greater than 0.6 nm, (ii) clays, and (iii) amorphous cracking components, the process comprising the steps of: (a) preparing a mixture comprising the first cracking component and a gelatin material, and mixing intimately, (b) mulling with the second cracking component, and (c) extruding the mixture of step (b) into catalyst extrudates, and calcining the extrudates.</p> |
