Catalysts and methods for polyester production
US-2015368394-A1 · Dec 24, 2015 · US
US2017165648A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017165648-A1 |
| Application number | US-201615373432-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 8, 2016 |
| Priority date | Dec 15, 2015 |
| Publication date | Jun 15, 2017 |
| Grant date | — |
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A hydroprocessing catalyst has been developed. The catalyst is a unique crystalline transition metal oxy-hydroxide molybdotungstate material. The hydroprocessing using the crystalline ammonia transition metal oxy-hydroxide molybdotungstate material may include hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, hydroisomerization, hydrotreating, hydrofining, and hydrocracking.
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1 . A crystalline transition metal oxy-hydroxide molybdotungstate material having the formula: (NH 4 ) A M(OH) B MO X W Y O Z where “a” varies from 0.1 to 10, ‘M’ is a metal selected from Mg, Mn, Fe, Co Ni, Cu, Zn and mixtures thereof; ‘b’ varies from 0.1 to 2; ‘x’ varies from 0.5 to 1.5; ‘y’ varies from 0.01 to 0.4; where the sum of (x+y) must be ≦1.501; ‘z’ is a number which satisfies the sum of the valency of a, M, b, x and y; the material having a unique x-ray powder diffraction pattern showing peaks at the d-spacings listed in Table A: TABLE A d(Å) I/I 0 % 10.0-9.53 m 7.72-7.76 s 7.49-7.25 m 5.27-5.12 m 5.1-5.04 m 4.92-4.87 w 3.97-3.91 m 3.69-3.64 s 3.52-3.48 m 3.35-3.32 m 3.31-3.29 m 3.12-3.09 w 3-2.97 m 2.76-2.73 m 2 . The crystalline transition metal oxy-hydroxide molybdotungstate material of claim 1 wherein the crystalline transition metal oxy-hydroxide molybdotungstate material is present in a mixture with at least one binder and wherein the mixture comprises up to 25 wt % binder. 3 . The crystalline transition metal oxy-hydroxide molybdotungstate material of claim 2 wherein the binder is selected from the group consisting of silicas, aluminas, and silica-aluminas. 4 . The crystalline transition metal oxy-hydroxide molybdotungstate material of claim 1 wherein the crystalline transition metal oxy-hydroxide molybdotungstate material is sulfided. 5 . A method of making a crystalline transition metal oxy-hydroxide molybdotungstate material having the formula: (NH 4 ) A M(OH) B MO X W Y O Z where “a” varies from 0.1 to 10, ‘M’ is a metal selected from Mg, Mn, Fe, Co Ni, Cu, Zn and mixtures thereof; ‘b’ varies from 0.1 to 2; ‘x’ varies from 0.5 to 1.5; ‘y’ varies from 0.01 to 0.4; where the sum of (x+y) must be ≦1.501; ‘z’ is a number which satisfies the sum of the valency of a, M, b, x and y; the material having a unique x-ray powder diffraction pattern showing peaks at the d-spacings listed in Table A: TABLE A d(Å) I/I 0 % 10.0-9.53 m 7.72-7.76 s 7.49-7.25 m 5.27-5.12 m 5.1-5.04 m 4.92-4.87 w 3.97-3.91 m 3.69-3.64 s 3.52-3.48 m 3.35-3.32 m 3.31-3.29 m 3.12-3.09 w 3-2.97 m 2.76-2.73 m the method comprising: (a) forming a reaction mixture containing NH 3 , H 2 O, and sources of M, W, and Mo; (b) adjusting the pH of the reaction mixture to a pH of from about 8.5 to about 10; (c) reacting the reaction mixture between about 100° C. and about 220° C. in an autogenous environment; and (d) recovering the crystalline transition metal oxy-hydroxide molybdotungstate material. 6 . The method of claim 5 wherein the reacting is conducted at a temperature of from 10° C. to about 200° C. for a period of time from about 30 minutes to 14 days. 7 . The method of claim 5 wherein the recovering is by filtration or centrifugation. 8 . The method of claim 5 further comprising adding a binder to the recovered crystalline transition metal oxy-hydroxide molybdotungstate material. 9 . The method of claim 8 wherein the binder is selected from the group consisting of aluminas, silicas, and alumina-silicas. 10 . The method of claim 5 further comprising sulfiding the recovered crystalline transition metal oxy-hydroxide molybdotungstate material. 11 . A conversion process comprising contacting a feed with a catalyst at conversion conditions to give at least one product, the catalyst comprising: a crystalline transition metal oxy-hydroxide molybdotungstate material having the formula: (NH 4 ) A M(OH) B MO X W Y O Z where “a” varies from 0.1 to 10, ‘M’ is a metal selected from Mg, Mn, Fe, Co Ni, Cu, Zn and mixtures thereof; ‘b’ varies from 0.1 to 2; ‘x’ varies from 0.5 to 1.5; ‘y’ varies from 0.01 to 0.4; where the sum of (x+y) must be ≦1.501; ‘z’ is a number which satisfies the sum of the valency of a
and iron · CPC title
and nickel · CPC title
in the presence of water, e.g. steam · CPC title
containing also molybdenum · CPC title
and cobalt · CPC title
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