Journal of Chemical Sciences p. 833 - 842 (2015)
Update date:2022-08-29
Topics:
Pudi, Satyanarayana Murty
Zoeb, Abdul
Biswas, Prakash
Kumar, Shashi
Abstract In this work, a series of Cu/MgO catalysts with different copper metal loading were prepared by the precipitation-deposition method. Their catalytic behaviour was investigated for glycerol hydrogenolysis to 1,2-propanediol (1,2-PDO). The physico-chemical properties of the catalysts were characterized by various techniques such as BET surface area, X-ray diffraction (XRD), temperature programmed reduction (TPR), NH3-temperature programmed desorption (NH3-TPD) and scanning electron microscopy (SEM) methods. The characterization results showed that the copper metal was well-dispersed over MgO support and a new phase Cu-MgO was also identified from XRD results after calcination. The 25Cu/MgO (Cu:25 wt%) catalyst exhibited the highest glycerol conversion of 88.7% and 1,2-PDO selectivity of 91.7% at 210°C, 4.5 MPa of hydrogen pressure after 12 h. The high glycerol conversion was mainly due to the Cu dispersion on MgO support and high acidic strength. Further, the effects of temperature, hydrogen pressure, catalyst loading and glycerol concentration were studied over 25Cu/MgO catalyst for optimization of reaction parameters. Kinetic study over highly active 25Cu/MgO catalyst showed that the reaction followed the pseudo second order rate with respect to glycerol and the apparent activation energy was found to be 28.7 ± 0.8 kcal/mol.
View Morewebsite:http://www.win-winchemical.com
Contact:0086-577-64498589
Address:6F,No.396 Xingping Road,Longwan Industrial Zone
Contact:18710867521(wechat)
Address:Rm10516,Galaxy Tech Building #2,No.25 Tangyan Rd,Hi-Tech Zone,Xi'an, China
Shanghai Hohance Chemical Co., ltd
Contact:13914753421
Address:Fl.5;Bld. 70, Lane 1500; Xinfei Road
Chengdu Boon Stream Chemical Industry Co.,Ltd.
Contact:+86-28-83156758
Address:No.859,Dongzikou Road,Jinniu District,Chengdu,Sichuan,P.R.China
Contact:(86) 731 88718666
Address:Room 1222, Unit 4, Building B, Shangcheng, No.47, Kaiyuan East Road.
Doi:10.1246/bcsj.58.2719
(1985)Doi:10.1055/s-0037-1610650
(2018)Doi:10.1016/j.ica.2014.04.030
(2014)Doi:10.1021/ja036771v
(2004)Doi:10.1016/0022-328X(85)80401-0
(1985)Doi:10.1039/c6ra18613k
(2016)