Self-assembled special morphology mordenite catalyst and preparation method thereof
A mordenite and catalyst technology, applied in the field of self-assembled mordenite catalyst with special morphology and its preparation, can solve problems such as poor diffusion performance of molecular sieve catalyst, and achieve the effects of excellent reaction performance, improved performance and smooth diffusion channels
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Embodiment 1
[0033] Weigh 62 grams of chain-shaped mordenite (referred to as LM, with a silicon-aluminum ratio of 27), add deionized water, knead evenly, extrude and dry to obtain a catalyst matrix, and the matrix is calcined at 565°C in an air atmosphere for 5 hours , 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 19.0 grams. The aromatic hydrocarbon transalkylation reaction uses toluene and trimethylbenzene with a molar ratio of 37:63 as the model raw material, and the hydrogen hydrocarbon molar ratio H 2 / HC=3.1. First use hydrogen to exhaust the air in the reaction system and pressurize it to 1.9MPa, and control the feed reaction space velocity of the above raw materials to 2.2h -1, the raw materials are respectively contacted with the bed layer containing the above-mentioned catalyst, heated to the...
Embodiment 2
[0040] Weigh 62 grams of LM dry powder, add titanate (according to the metal content of 2.1%wt), add deionized water and knead evenly, extrude and form, and dry to obtain the catalyst precursor. Get a catalyst.
[0041] The catalyst prepared in the above examples was evaluated and sampled and analyzed under the same operating conditions as in Example 1.
Embodiment 3
[0043] Take by weighing 62 grams of LM dry powder, add zirconium nitrate (by 2.1%wt metal content), add deionized water and knead evenly, extrude and form, and dry to obtain the catalyst precursor, the precursor is roasted at 565 ° C in air atmosphere for 5 hours, and pelletized to obtain catalyst.
[0044] The catalyst prepared in the above examples was evaluated and sampled and analyzed under the same operating conditions as in Example 1.
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Abstract
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