Catalyst possessing effect of desulfurization for Cracking hydrocarbon and preparing method
A cracking catalyst and desulfurization technology, which is applied in the field of hydrocarbon cracking catalyst and its preparation, can solve the problem of insufficient desulfurization activity, and achieve the effects of significant desulfurization activity, high desulfurization activity, and significant improvement
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preparation example Construction
[0039] In the preparation of the molecular sieve composition, the hydrated alumina is selected from one or more of various hydrated aluminas, such as boehmite (boehmite), pseudo-boehmite (pseudo-boehmite) One or more of boehmite), alumina trihydrate, amorphous aluminum hydroxide, and aluminum sol.
[0040] The compound of the metal component is selected from one or more of the water-soluble and water-insoluble compounds of the metal component.
[0041] For example, Group IIIA non-aluminum metals, Group IVA metals, Group IVB non-titanium metals, Group VB metals, VIB metals, Group VIII non-noble metals, rare earth metal compounds may be selected from halides, nitrates, sulfates, phosphoric acid of these metals One of salts, carbonates, hydroxides, oxides, organic acid salts, or non-aluminum metals of group IIIA, group IVA metals, group IVB metals, group VB metals, group VIB metals, group VIIB metals, group VIII Non-noble metals and rare earth metal compounds can be selected fro...
Embodiment 1-2
[0055] The following examples illustrate the molecular sieve composition contained in the catalyst provided by the present invention and the preparation method thereof.
[0056] 1. Magnesium nitrate is dissolved in deionized water to make a magnesium nitrate solution with a concentration of 50% by weight. Under stirring, the pH of the system is adjusted to 8.0 with ammonia water of 25% by weight to form a precipitate, filtered, and deionized Wash with water until no nitrate ion is detected to obtain a magnesium hydroxide filter cake containing MgO39% by weight.
[0057] 2. After mixing different metal component compounds with pseudo-boehmite and deionized water and stirring evenly, a slurry is obtained, and acid is added to the slurry, and stirring is continued for 3 hours to peptize the pseudo-boehmite , and then mixed evenly with the magnesium hydroxide filter cake containing MgO39% by weight to obtain a colloid.
[0058] 3. Mix the obtained colloid with molecular sieves an...
example 3
[0061] This example illustrates the molecular sieve composition contained in the catalyst provided by the present invention and its preparation method.
[0062] 1. Mix the metal component compound, anhydrous calcium chloride, pseudo-boehmite and deionized water and stir evenly to obtain a slurry, add acid to the slurry, and continue stirring for 3 hours to make the pseudo-boehmite Peptized to obtain a colloid.
[0063] 2. Mix the obtained colloid with the molecular sieve and roast to obtain the molecular sieve composition Z3 provided by the present invention.
[0064] Table 1 shows the type and amount of metal component compounds, the amount of pseudo-boehmite, the amount of anhydrous calcium chloride, and the amount of deionized water. Table 2 shows the type of acid used, the pH value of the colloid and the solid content of the colloid. Table 3 shows the amount of colloid, the type and amount of molecular sieve and the temperature and time of calcination. Table 4 gives the...
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