CATALYST COMPOSITION PREPARATION AND USE
First Claim
1. A process for the preparation of a catalyst composition of the general formula, on an oxide basis,
(X)b(M)c(Z)d(O)e
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(I)whereinX represents at least one non-noble Group VIII metal;
M represents at least one non-noble Group VIb metal;
Z represents one or more elements selected from aluminium, silicon, magnesium, titanium, zirconium, boron and zinc;
O represents oxygen;
one of b and c is the integer 1; and
d, e, and the other of b and c each are a number greater than 0 such that the molar ratio of b;
c is in the range of from 0.5;
1 to 5;
1, the molar ratio of d;
c is in the range of from 0.1;
1 to 50;
1, and the molar ratio of e;
c is in the range of from 3.6;
1 to 108;
1;
which comprises heating a composition of the general formula
(NH4)a(X)b(M)c(Z)d(O)e
(II)in which a is a number greater than 0 and X, M, Z, O, b, c, d and e are as defined above, at a temperature in the range of from 100 to 600°
C.,wherein the composition of general formula II is in the form of, or is recovered from, a slurry optionally after ageing at a temperature in the range of from 20 to 95°
C. for a minimum of 10 minutes, said slurry being obtained by (co)precipitating, at a temperature and for a time sufficient to produce the composition II, at least one non-noble Group VIII metal compound, at least one non-noble Group VIb metal compound, at least one refractory oxide material and an alkali compound, in a protic liquid, at least one of the metal compounds being partly in solid state and partly in dissolved state.
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Abstract
A bulk metal oxide catalyst composition of the general formula
(X)b(M)c(Z)d(O)e (I)
wherein
X represents at least one non-noble Group VIII metal;
M represents at least one non-noble Group VIb metal;
Z represents one or more elements selected from aluminium, silicon, magnesium, titanium, zirconium, boron, and zinc; one of b and c is the integer 1; and
d and e and the other of b and c each are a number greater than 0 such that the molar ratio of b:c is in the range of from 0.5:1 to 5:1, the molar ratio of d:c is in the range of from 0.2:1 to 50:1, and the molar ratio of e:c is in the range of from 3.7:1 to 108:1; is prepared by controlled (co)precipitation of component metal compounds, refractory oxide material, and alkali compound in protic liquid. Resulting compositions find use in hydrotreatment processes involving particularly hydrodesulphurisation and hydrodenitrification.
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Citations
16 Claims
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1. A process for the preparation of a catalyst composition of the general formula, on an oxide basis,
(X)b(M)c(Z)d(O)e-
(I)wherein X represents at least one non-noble Group VIII metal; M represents at least one non-noble Group VIb metal; Z represents one or more elements selected from aluminium, silicon, magnesium, titanium, zirconium, boron and zinc; O represents oxygen; one of b and c is the integer 1; and d, e, and the other of b and c each are a number greater than 0 such that the molar ratio of b;
c is in the range of from 0.5;
1 to 5;
1, the molar ratio of d;
c is in the range of from 0.1;
1 to 50;
1, and the molar ratio of e;
c is in the range of from 3.6;
1 to 108;
1;which comprises heating a composition of the general formula
(NH4)a(X)b(M)c(Z)d(O)e
(II)in which a is a number greater than 0 and X, M, Z, O, b, c, d and e are as defined above, at a temperature in the range of from 100 to 600°
C.,wherein the composition of general formula II is in the form of, or is recovered from, a slurry optionally after ageing at a temperature in the range of from 20 to 95°
C. for a minimum of 10 minutes, said slurry being obtained by (co)precipitating, at a temperature and for a time sufficient to produce the composition II, at least one non-noble Group VIII metal compound, at least one non-noble Group VIb metal compound, at least one refractory oxide material and an alkali compound, in a protic liquid, at least one of the metal compounds being partly in solid state and partly in dissolved state.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
in which a is a number greater than 0 and X, M, Z, O, b, c, d and e are as defined in claim 1, at a temperature in the range of from 100 to 600°
C. to yield said composition having the general formula, on an oxide basis,
(X)b(M)c(Z)d(O)e
(I)wherein X represents at least one non-noble Group VIII metal; M represents at least one non-noble Group VIb metal; Z represents one or more elements selected from aluminium, silicon, magnesium, titanium, zirconium, boron and zinc; O represents oxygen;
one of b and c is the integer 1; andd, e, and the other of b and c each are a number greater than 0 such that the molar ratio of b;
c is in the range of from 0.5;
1 to 5;
1, the molar ratio of d;
c is in the range of from 0.1;
1 to 50;
1, and the molar ratio of e;
c is in the range of from 3.6;
1 to 108;
1.
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9. A method of making a composition, said method comprises:
- mixing a non-noble Group VIII metal compound, a non-noble Group VIB metal compound, a refractory oxide material and an alkali compound in a protic liquid to thereby form a mixture in which said mixture at least one of the metal compounds is partly in solid state and partly in dissolved state;
subjecting said mixture to coprecipitation conditions thereby forming a coprecipitate solid; and heating said coprecipitate solid at an elevated temperature so as to yield said composition.
- mixing a non-noble Group VIII metal compound, a non-noble Group VIB metal compound, a refractory oxide material and an alkali compound in a protic liquid to thereby form a mixture in which said mixture at least one of the metal compounds is partly in solid state and partly in dissolved state;
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13. A method as recited in claim 17, wherein said alkali compound is ammonia or a material that will generate ammonium ions in the protic liquid of said mixture.
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14. A method as recited in claim 18, wherein said composition is of the general formula, on an oxide basis,
(X)b(M)c(Z)d(O)e-
(I)wherein X represents at least one non-noble Group VIII metal; M represents at least one non-noble Group VIb metal; Z represents one or more elements selected from aluminium, silicon, magnesium, titanium, zirconium, boron and zinc; O represents oxygen; one of b and c is the integer 1; and d, e, and the other of b and c each are a number greater than 0 such that the molar ratio of b;
c is in the range of from 0.5;
1 to 5;
1, the molar ratio of d;
c is in the range of from 0.1;
1 to 50;
1, and the molar ratio of e;
c is in the range of from 3.6;
1 to 108;
1.- View Dependent Claims (10)
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- 15. A method as recited in claim 19, wherein said composition is XRD-amorphous.
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16. A method as recited in claim 20, wherein said composition has an XRD diffraction pattern in which above 2θ
- =15°
, there is a local maximum having a characteristic full width at a half maximum above 2.5°
at each of a 20 value in the range of from 25.5°
to 28.0°
;
a 20 value in the range of from 33.6°
to 34.6°
; and
a 20 value in the range of from 59.8°
to 62.2°
, and there is no reflection or local maximum having a characteristic full width at half maximum of 2.5°
or below. - View Dependent Claims (12)
- =15°
Specification