A Simple Method of Preparation of High Silica Zeolite Y and Its Performance in the Catalytic Cracking of Cumene

Figure 3

The SEM images of the samples with different H₂SO₄/Al₂O₃ and different crystallization time. (a) NaY-0-12; (b) NaY-0.67-24; (c) NaY-0.67-48; (d) NaY-0.67-144; (e) NaY-1.34-312.

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