Hydroisomerization of Emerging Renewable Hydrocarbons using Hierarchical Pt/H‐ZSM‐22 Catalyst

Abstract

Last site standing: A new generation of hierarchical Pt/H-ZSM-22 zeolites is designed for the efficient processing of upcoming renewable feedstocks. The enhanced accessibility of the active sites is vital for the superior activity and exceptional selectivity in the hydroisomerization of model molecules such as nonadecane and pristane.

Influence of Porosity on Product Distribution over Co/H‐ZSM‐22 Catalysts in the Upgrading of Palmitic Acid

“…However, a lower C 16 /C 16− x molar ratio over Co/HZP‐22 (2.23) was observed than that over Co/HZ‐22 (3.33), which was probably because of the good dispersion of Co particles over HZP‐22, which improved the hydrogenation function of the metal centers by the HDC route. According to these catalytic performances (Table and Figure ), mesoporous Co/HZP‐22 presented an excellent activity and selectivity to iso products, which was consistent with previous reports …”

“…Furthermore, Zhao et al. proved that metal impregnated over hierarchically porous zeolites exhibited an excellent dispersion of the metal phase and HDO performance during bio‐oil (which included model compounds) conversion, and similar results have been reported by others . There results highlight the excellent catalytic activity and stability over hierarchical zeolite supports during palmitic acid conversion, which indicates that hierarchical porous structures can reduce diffusion limitations effectively.…”

Catalytic upgrading of vegetable oils into jet fuels range hydrocarbons using heterogeneous catalysts: A review

“…Rapid catalyst deactivation was not prominent but hydrocracking reactions were observed forming C 5 and lighter species to greater than 40% selectivity with Pt/H-MCM-22 and Pt/H-ZSM-5 catalysts. Martens et al [112] performed the hydroisomerization of a series of renewable n-alkanes (i.e. n-decane, n-nonadecane and pristane) using both conventionally prepared and hierarchically designed ZSM-22 zeolites.…”

Development of nickel based catalysts for the transformation of natural triglycerides and related compounds into green diesel: a critical review

“…The aforementioned group studied a new series of catalysts [188], in an effort to improve the quality of the Jatropha oil hydroconversion product by increasing its iso-paraffins content and thus decreasing the cold filter plugging point (CFPP) [189][190][191][192][193]. The main idea was the exploitation of isomerization ability of heteropoly acids [194][195][196][197].…”