Catalyst for preparing hydrocarbons from oxygen-containing compounds, and preparation method and application thereof
A catalyst and compound technology, applied in the preparation of liquid hydrocarbon mixtures, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problems of no systematic reports, etc., achieve small crystallinity loss, high hydrocarbon selectivity, and long single-pass life Effect
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Embodiment 1
[0035]Pour the nitrate solution of the modifying element Zn into a commercially available ZSM-5 molecular sieve, the modifying element accounts for 4.0% of the mass of the catalyst, stir well, let stand for 24h, dry at 100°C, and roast at 550°C for 5h to obtain Modified ZSM-5 molecular sieve, the modified molecular sieve and the binder SB powder were kneaded and extruded into rods, left standing at room temperature for 24 hours, dried at 100°C, and calcined at 550°C for 5 hours. The strip catalyst obtained is subjected to alkali treatment in a fixed bed reactor, the concentration of sodium hydroxide used is 0.1mol / L, the treatment conditions are temperature 90°C, and the mass space velocity of sodium hydroxide solution is 3h -1 , the treatment time is 6h, after the sodium hydroxide solution is processed, the ammonium nitrate solution is replaced for ammonium exchange treatment. -1 , the treatment time is 6h, the catalyst exchanged by ammonium nitrate is at 600℃, and the mass s...
Embodiment 2~7
[0038] According to the method of embodiment 1, the modifying elements accounted for 4.0% of the mass of the catalyst into 1%, 2%, 6%, 8%, 10%, the ZSM-5 content remains unchanged, and the corresponding binder content is 19% , 18%, 14%, 12%, 10% others are identical with embodiment 1.
Embodiment 8
[0040] According to the method of embodiment 1, change binder SB powder into pseudo-boehmite, all the other steps are the same as embodiment 1, and the final composition of catalyst is that ZSM-5 content is 80%, and binder pseudo-boehmite content It is 16%, and the content of modifying elements is 4%.
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