Synthesis of large mordenite crystals in the presence of aliphatic alcohol

Selectivity in sorption and hydrogenation of methyl oleate and elaidate on MFI zeolites

“…Synthesis of ZSM-5 zeolites according to a published procedure [26] The values for x and y can be extracted from Table 2. The solution was then placed in a Teflon autoclave and heated in a Milestone Microsynth Microwave oven for 17 h at 170°C.…”

Catalytic cracking of polyethylene over zeolite mordenite with enhanced textural properties

“…According to the literature [29,30], ammonium nitrate was selected as exchange cation and a two-stage procedure was applied for the ion-exchange treatment. Finally, the zeolite was calcined in air at 550 8C for 5 h in order to obtain the H-form mordenite and to remove the organosilane present in the samples prepared by means of organofunctionalization of the precrystallized solutions.…”

Coking on micrometer- and nanometer-sized mordenite during dimethyl ether carbonylation to methyl acetate

“…H-mordenite (HMOR) is the most active catalyst for DME carbonylation to MA [4][5][6][7][8][9][10][11][12][13][14], but the HMOR catalysts suffered severe deactivation due to the heavy deposition of carbonaceous species during reaction. Mordenite has a two dimensional framework structure consisting of straight 12-membered ring (12-MR) pores (0.67 nm × 0.70 nm) that are connected by twisted (0.28 nm × 0.57 nm, side pockets along (001) crystal facet) and crossed (0.34 nm × 0.48 nm, along (010) crystal facet) 8-membered ring (8-MR) pores [14,15]. DME carbonylation mainly occurs in the 8-MR crossed pores, which have the unique orientation to stabilize the CH3CO* intermediate of the methoxy groups [7,8,14].…”