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Table 2

Textural parameters of the zeolite after each step of the synthesis process.

Zeolite S BET (m2/g)a S Meso (m2/g)b V Micro (cm3/g)c
Parent NaY 865 6 0.31
Dealuminated SiCl4 669 18 0.23
Washed HCl 687 21 0.23
Desilicated NaAlO2 709 111 0.24
a

BET method (constant C positive and p/p 0 < 0.1).

b

t-plot method (linear part between 0.34 ≤ x-axis (nm) ≤ 1).

c

Volume of N2 adsorbed when the slope of adsorption branch becomes lower than 103 cm3 g−1.

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