Hierarchical Low Si/Al Ratio Ferrierite Zeolite by Sequential Postsynthesis Treatment: Catalytic Assessment in Dehydration Reaction of Methanol

Table 2

Relative crystallinity of investigated samples.

Sample	Relative crystallinity (%)
P	100
A1	97
B1	95
C1	91
D1	89
C1.5	85
B2	84
C2	79
DesNaOH	98