Mordenite catalyst with special morphology

[0033]Mordenite with a chain shape (referred to as LM, with a silicon-aluminum ratio of 25), weighed 78 grams, added 20 grams of pseudo-boehmite, kneaded evenly, extruded, and dried to obtain a catalyst matrix. Calcined at 580°C for 3 hours, and pelletized to obtain the catalyst.

[0034] With the above-mentioned catalyst, the catalyst evaluation was carried out on a fixed-bed continuous micro-reactor near hydrogen, and the reactor specification was The loading capacity is 20.0 grams, and the aromatic hydrocarbon transalkylation reaction uses toluene and trimethylbenzene with a molar ratio of 50:50 as the model raw material, and the molar ratio of hydrogen to hydrocarbon is H 2 / HC=2.8 (The following examples and comparative examples are all evaluated according to the above conditions). First use hydrogen to exhaust the air in the reaction system and pressurize it to 3.5MPa, and control the feed reaction space velocity of the above raw materials to 2.0h -1 , the raw materia...

[0039] Weigh 78 grams of LM dry powder, add scandium nitrate (according to the amount of 2.5%wt metal oxide), add 40 grams of aluminum dihydrogen phosphate, knead evenly, extrude and dry to obtain the catalyst matrix, the matrix is ​​in the air atmosphere 550 ℃ Calcined for 5 hours, pelletized to obtain the catalyst.

[0040] With the catalyzer that above-mentioned embodiment makes, under the working condition of referring to embodiment 1, first discharge the air of reaction system with hydrogen and pressurize to 3.0MPa, the feeding reaction space velocity of control above-mentioned raw material is 2.5h -1 , control the reaction temperature to 395°C.

[0042] Take by weighing 78 grams of LM dry powder, add yttrium nitrate (according to the amount of 2.5%wt metal oxide), add 40 grams of aluminum sulfate again, knead uniformly, extrude molding, dry to obtain catalyst matrix, matrix roasts 550 ℃ in air atmosphere Hours, pelletized to obtain the catalyst.

[0043] With the catalyzer that above-mentioned embodiment makes, under the working condition of referring to embodiment 1, first discharge the air of reaction system with hydrogen and pressurize to 3.0MPa, the feeding reaction space velocity of control above-mentioned raw material is 2.5h -1 , control the reaction temperature to 395°C.