Dealuminated Beta Zeolite Modified by Alkaline Earth Metals

Table 1

Surface characteristic of samples determined by the N₂ adsorption-desorption method.

Sample	Total specific surface area, TSSA (m^2·g^−1)	Micropore area (m^2·g^−1)	External surface area (m^2·g^−1)	Total pore volume (cm^3·g^−1)	Micropore volume (cm^3·g^−1)	Average pore diameter (nm)
HAlBeta	474	414	60.0	0.317	0.216	4.70
DeAlBeta	498	435	63.0	0.331	0.223	4.68
Mg2.0DeAlBeta	468	407	61.0	0.312	0.212	4.62
Sr2.0DeAlBeta	498	436	62.0	0.328	0.227	4.48
Ca2.0DeAlBeta	472	411	61.0	0.308	0.214	4.40