Porous Silicates Modified with Zirconium Oxide and Sulfate Ions for Alcohol Dehydration Reactions

Table 3

Ethanol dehydration over mesoporous catalysts.

Materials	= 300°C			= 325°C			= 350°C
	XA; (%)	S; (%)	SE; (%)	XA; (%)	S; (%)	SE; (%)	XA; (%)	S; (%)	SE  (%)
SM	0	0	0	0	0	0	1	100	0
ZSM	73	71	29	94	90	9	100	96	4
12SZSM	76	56	43	80	76	24	95	86	14
12SZSM-2	100	99	0.5	—	—	—	—	—	—

X_A = conversion.
= selectivity to ethylene.
S_E = selectivity to diethyl ether.