Effect of Cs+ on the hydrogenolysis of glycerol to higher value sustainable and green chemicals using a supported Ni-HSiW catalyst

Glycerol hydrogenolysis to n -propanol over Zr-Al composite oxide-supported Pt catalysts

“…In addition, the desorption peak of the 2.5%Pt/Zr0.7Al0.3Oy catalyst became much sharper and intensified, which indicated that the strong acid sites were more in number [25]. They would contribute to an improvement in the product selectivity [10].…”

“…It was found that the selectivity for n-propanol was almost linearly related to the percentage of acids. Some researchers also pointed out that n-propanol selectivity was related to strong acid sites of a specific intensity on the catalyst [10]. The location corresponds to a specific acid site that is beneficial for the transformation of glycerol to n-propanol on the catalyst.…”

“…n-Propanol (n-PO) is another valuable chemical produced during the hydrogenolysis of glycerol; however, the direct conversion of glycerol to n-PO remains essentially unexplored. Few researchers have studied the direct conversion of glycerol to n-propanol, despite the fact that n-propanol is relatively expensive (price: 1,3-propandiol > n-propanol > 1,2propandiol > ethylene glycol [10]). Further, n-propanol is a valuable chemical widely used as a solvent, organic intermediate, and raw material [11,12].…”

“…Guo et al [19] found that mesoporous niobium tungsten oxide-supported platinum exhibited good propane selectivity, but the complex synthesis process of the catalyst hampers its industrial application. In addition, it was found that changes in the acidity of the catalyst could significantly affect product distribution when 10Ni-30H4SiW/Al2O3 was used in the reaction, in which Cs + can be exchanged to alter the acidity of the catalyst [10]. In spite of previous research efforts, the specific relationship between hydrogenolysis product distribution and acidity of the catalyst is still not clear and needs to be evaluated.…”

Progress in Production of 1, 3-propanediol From Selective Hydrogenolysis of Glycerol

“…Therefore, alkaline cation modification is used to adjust the pH or modify the specific surface area. Mai et al (Mai & Ng, 2017) exchanged the basic cation Cs + to catalyst 10Ni-30H 4 SiW /Al 2 O 3 . With the increase of the Cs + content, the selectivity of 1,3-PDO and 1-PO increased first and then decreased.…”