Lee, Sang-Yong Jung, Jae-Sun Yang, Eun-Hyeok Lee, Kwan-Young Moon, Dong Ju 2024-01-20T06:00:15Z 2024-01-20T06:00:15Z 2021-09-05 2015-11 1533-4880 https://pubs.kist.re.kr/handle/201004/124830 1,2-propanediol (1,2-PDO) is one of the promising product among the valuable products derived from glycerol and it can be obtained by the catalytic hydrogenolysis of glycerol. Copper-supported clay-based catalysts were prepared with different pore sizes using various ratios of kaolin, Mg, and Al by coprecipitation and applied in the selective hydrogenolysis of glycerol to 1,2-PDO. In recent research, variations of pore volume and pore size could affect the diffusion of reagents within the catalyst due to the collision between reagents or pore wall and reagents. It changes selectivities of each product in hydrogenolysis of glycerol reaction. The physico-chemical properties of the catalysts were analyzed by XRD, N-2 physisorption, TPR, CO2-TPD, SEM, and a mercury porosimeter. The Cu/TALCITE 4 catalyst showed 98% 1,2-PDO selectivity with 65% glycerol conversion under the optimized condition of 190 degrees C, 25 bar, and 20 wt% glycerol aqueous solution. It was found that the basic strength and meso-macro pore structure of the catalysts play an important role in glycerol conversion and 1,2-PDO selectivity. English AMER SCIENTIFIC PUBLISHERS PRECIPITATION-GEL METHOD PROPYLENE-GLYCOL CONVERSION Hydrogenolysis of Glycerol to 1,2-Propanediol Over Clay Based Catalysts Article 10.1166/jnn.2015.11516 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.15, no.11, pp.8783 - 8789 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 15 11 8783 8789 scie scopus 000365554700078 2-s2.0-84944810649 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article PRECIPITATION-GEL METHOD PROPYLENE-GLYCOL CONVERSION Glycerol Hydrogenolysis 1,2-Propanediol Basicity Pore Size Distribution