V and V-P containing Zr-SBA-15 catalysts for dehydration of glycerol to acroleinJ.A. Cecilia, C. García-Sancho*, J.M. Mérida-Robles, J. Santamaría González, R. Moreno-Tost, P. Maireles-Torres

Departamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, 29071 Málaga, Spain

*Corresponding author: cristinags@uma.es

Supplementary Information

Table 1. Glycerol conversion and product yields over xV and xVPy catalysts, at 325 ◦C.

Sample Cglycerol

(%)Yacrolein

(%)Yacetaldehyde

(%)Yally alcohol

(%)Yhydroxyacetone

(%)Yothers

(%)Cbalance

(%)CCHN

(%)

8V 89 (70) 19 (15) 10 (7) 4 (4) 0 (0) 55 (44) 45 (56) 13.6

12V 93 (67) 18 (14) 9 (7) 4 (4) 0 (0) 62 (42) 38 (58) 12.6

16V 80 (66) 19 (15) 9 (7) 5 (7) 0 (0) 47 (37) 52 (63) 13.9

20V 92 (68) 26 (16) 10 (6) 8 (9) 0 (0) 52 (52) 52 (65) 12.7

8VP0.2 95 (53) 27 (14) 7 (3) 6 (5) 1 (1) 54 (32) 46 (68) 11.9

12VP0.2 60 (54) 42 (24) 0.3 (0.3) 0.3 (0.2) 4 (4) 15 (26) 85 (74) 1.0

16VP0.2 74 (53) 27 (16) 0.2 (0.2) 0.2 (0.1) 5 (1) 41 (35) 58 (65) 1.9

20VP0.2 43 (22) 18 (9) 0 (0) 0 (0) 2 (0.3) 21 (13) 79 (87) 1.2

12V 93 (67) 18 (14) 9 (7) 4 (4) 0 (0) 62 (42) 38 (58) 12.6

12VP1 81 (47) 22 (13) 4 (2) 7 (5) 1 (1) 47 (25) 53 (74) 8.8

12VP0.6 75 (55) 32 (28) 3 (1) 4 (3) 4 (3) 33 (19) 67 (80) 6.5

12VP0.2 60 (54) 42 (24) 0.3 (0.3) 0.3 (0.2) 4 (4) 15 (26) 85 (74) 1.0

Data measured after 2 h and 8 h (in brackets)

Experimental conditions: weight of catalyst = 0.5 g diluted with SiC to 3 cm3 volume.

Feed composition: 10 wt.% glycerol in water; liquid flow= 0.1mLmin−1; N2 flow=15 mLmin−1; T = 325 ◦C.

List of captions.

Figure 1. Nitrogen adsorption (solid symbol)–desorption (open symbol) isotherms

of (A) xV, (B) xVP0.2 and (C) 12VPy.

Figure 2. TPD-NH3 profiles of (A) xV, (B) xVP0.2 and (C) 12VPy.

Figure 3. Glycerol conversion and acrolein yield expressed as µmol·h-1·m-2 over xV

catalysts and support (SBA-Zr) as a function of the reaction time (0.5 g diluted

with SiC to 3 cm3 volume; 0.1 mL min−1 of 10 wt.% glycerol in water; N2 flow=15

mL min−1 and 325 ºC).

Figure 4. Glycerol conversion and acrolein yield expressed as µmol·h-1·m-2 over

xVP0.2 catalysts as a function of the reaction time (0.5 g diluted with SiC to 3 cm3

volume; 0.1 mL min−1 of 10 wt.% glycerol in water; N2 flow=15 mL min−1 and 325

ºC).

Figure 1

Figure 2

Figure 3

Figure 4