Patent ID: 11958930
Assignee: NINGBO UNIVERSITY OF TECHNOLOGY
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 1:
2. The catalytic hydrogenation method of claim 1, wherein the Pt—W—Y/γ-Al2O3 catalyst is prepared by dipping: dipping a γ-Al2O3 carrier into an aqueous solution of platinum nitrate, tungsten nitrate and yttrium nitrate, where a mole ratio of Pt to W is 1:0.1 to 1:0.5, and a ratio of Pt to Y is 1:0.05 to 1:0.1; airing at the room temperature, drying for 5 to 10 hours in a vacuum drying oven at 100° C. to 150° C., roasting for 4 to 8 hours in a muffle furnace at 400° C. to 700° C., and then cooling to the room temperature, and washing with deionized water until the pH is neutral, and drying at 100° C. to 150° C.; and
the Pd—Zr—Nd/γ-Al2O3 catalyst is prepared by: dipping a γ-Al2O3 carrier into an aqueous solution of palladium nitrate, zirconium nitrate and neodymium nitrate, where a mole ratio of Pd to Zr is 1:01 to 1:0.5, and a mole ratio of Pd to Nd is 1:0.05 to 1:0.1, airing at the room temperature, drying for 5 to 10 hours in a vacuum drying oven at 100° C. to 150° C., roasting for 4 to 8 hours in a muffle furnace at 400° C. to 700° C., and then cooling to the room temperature, and washing with deionized water until the pH is neutral, and drying at 100° C. to 150° C.