Hong Soo Kim

Characterization of MCM-48 pellet and corresponding catalytic activity for Friedel-Crafts alkylation

Abstract MCM-48 was into a pellet (μ 2 mm x 10 mm). The slurry composition of the extrusion of the pellet was optimised to 75 wt% MCM-48: 25 wt% bentonite. The organic binder was controlled to 25–35wt% with respect to the weight of the MCM-48 and bentonite or pseudobohemite, in order to maximize the mechanical strength. The compressive strength had an inverse relationship with the surface area. It was suggested that the sintering temperature should be 700°C in order to have an optimised surface area and mechanical strength. Under these circumstance, the result of X-ray diffraction pattern showed that there was no structural collapse.

Friedel-crafts alkylation over Al-incorporated mesoporous honeycomb

Abstract Catalytic activity of Friedel-Crafts alkylation of toluene with benzyl alcohol has been measured over the Al-incorporated mesoporous honeycomb. The honeycomb was fabricated using MCM-48 and pseudobohemite as inorganic binder and the incorporation of aluminum was performed either by direct implementation of AlCl3 or by slurry mixing before the extrusion. Hydrothermal stability and compressive strength can be improved with the increase of the aluminum content. High catalytic activity of Friedel-Crafts alkylation was observed for the honeycomb containing Al initially in the slurry mixture.