Designing Hierarchical ZSM-5 Materials for Improved Production of LPG Olefins in the Catalytic Cracking of Triglycerides

Table 1

Physicochemical properties of the studied ZSM-5 materials.

Sample	Si/Al^a	Si/Al^b	(m^2/g)	SBET (m^2/g)	(m^3/g)	Vt (m^3/g)	Acid amount^d (mmol NH3/g)
C-Z	30	30	233	361	0.059	0.780	0.34
N-Z	30	28	142	394	0.124	0.264	0.41
M-Z-AAT	—	27	282	465	0.128	0.763	0.56
M-Z-AT	—	7	131	411	0.110	0.520	1.26
P-Z	—	11	110	373	0.113	0.219	1.24

^aIn the starting solution; ^bin the final products analyzed by AAS and ICP; ^ct-plot method; ^dNH₃-TPD.