Transition metal tungsten oxy-hydroxide
AssigneeUop LLC
InventorsStuart Miller, Susan C. Koster
Life of this patent
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Abstract
A hydroprocessing catalyst or catalyst precursor has been developed. The catalyst is a unique transition metal tungsten oxy-hydroxide material. The hydroprocessing using the transition metal tungsten oxy-hydroxide material or the decomposition product thereof may include hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofining, and hydrocracking.
Claims15
A conversion process comprising contacting a feed with a catalyst at conversion conditions to give at least one product, the catalyst comprising the decomposition product of the decomposition by sulfidation of a metal tungsten oxy-hydroxide material having the formula:
- Sa(NH4)bM(OH)xWyOz
- where ‘S’ is a sugar selected from glucose, fructose, galactose, lactose, maltose, sucrose, and mixtures thereof;
- ‘a’ varies from 0.001 to 5;
- ‘b’ varies from 0.1 and 3 ‘M’ is a metal selected from Mg, Mn, Fe, Co, Ni, Cu, Zn, and combinations thereof;
- ‘x’ varies from 0.1 to 2;
- ‘y’ varies from 0.1 to 4;
- z is a number which satisfies the sum of the valences of M, b, x and y;
- the material having a poorly crystalline diffraction pattern showing a broad peak between d-spacing 4.45-2.25 Å.
A method of making a catalyst comprising the decomposition product of the decomposition by sulfidation of transition metal tungsten oxy-hydroxide material having the formula:
- Sa(NH4)bM(OH)xWyOz
- where ‘S’ is a sugar selected from glucose, fructose, galactose, lactose, maltose, sucrose, and mixtures thereof;
- ‘a’ varies between 0.001 to 5;
- ‘b’ varies from 0.1 and 3 ‘M’ is a metal selected from Mg, Mn, Fe, Co, Ni, Cu, Zn, and combinations thereof;
- ‘x’ varies from 0.1 to 2;
- ‘y’ varies from 0.1 to 4;
- z is a number which satisfies the sum of the valences of M, b, x and y;
- the material having a poorly crystalline diffraction pattern showing a broad peak between d-spacing 4.45-2.25 Å, the method comprising:
- (a) forming a reaction mixture containing NH3, H2O, and sources of S, M, and W;
- (b) adjusting the pH of the reaction mixture to a pH of from about 8.5 to about 10;
- (c) reacting the reaction mixture;
- (d) recovering the transition metal tungsten oxy-hydroxide material;
- and
- (e) decomposing the recovered transition metal tungsten oxy-hydroxide material by sulfidation to generate at least one decomposition product.
Dependencies are inferred from the claim text.