Table 1. Hydrogenolysis of sorbitol over different ruthenium samples.

Entry	Catalyst	Conversion (%)	Yield based on carbon (%)
			1,2-PD	EG	1,3-PD	1,2-BD	GLY
1	Ru/AC	88.6	24.8	16.7	0.3	0.9	4.3
2	Ru/CNTs	99.2	31.4	23.8	0.7	0.4	7.5
3	Ru/CNTs-in	98.3	28.5	18.4	0.8	0.6	8.7
4	Ru/CNTs-out	99.5	33.4	25.1	0.9	1.4	4.3
5	RuWOx/CNTsa	99.6	34.6	25.6	0.9	0.7	7.0
6	RuWOx/CNTsb	79.5	28.1	18.3	0.6	0.8	6.3

Reaction conditions: 10wt% D-sorbitol aqueous solution 25 g, catalyst 0.3 g, n(Ca(OH)₂) = 1.7 mmol, 205 °C, 5.0 MPa H₂, 2 h, 500 r/min. Note:

^an(WO_x)/n(Ru) = 0.25.

^bn(WO_x)/n(Ru) = 0.50. 1,2-BD = 1,2-butanediol.