Molybdenum-vanadium-beryllium-based oxidative dehydrogenation catalyst materials

Patent metadata

Field	Value
Publication number	US-12168219-B2
Application number	US-202017634027-A
Country	US
Kind code	B2
Filing date	Aug 28, 2020
Priority date	Sep 4, 2019
Publication date	Dec 17, 2024
Grant date	Dec 17, 2024

Abstract

This document relates to oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, beryllium, oxygen, and optionally aluminum.

First claim

The invention claimed is:

1. A catalyst material, comprising:
molybdenum;
vanadium;
beryllium; and
oxygen,
wherein:
a molar ratio of molybdenum to vanadium is from 1:0.25 to 1:0.65;
a molar ratio of molybdenum to beryllium is from 1:0.25 to 1:0.85; and
oxygen is present at least in an amount to satisfy the valency of any present metal oxides, wherein the catalyst material has a 35% conversion temperature of ethane in a gas stream being converted to a product other than ethane at a weight hourly space velocity (WHSV) of 2.90 h −1 , a gas hourly space velocity (GHSV) of 2000 to 3000 h −1 , an inlet pressure in a range of 1 pound per square inch gauge (psig) to 2.5 psig, and an outlet pressure in a range of 0 psig to 0.5 psig of from about 300° C. to about 400° C.; and wherein the catalyst material has a selectivity to ethylene of from about 65% to 99% in the oxidative dehydrogenation of ethane at the 35% conversion temperature.

2. The catalyst material of claim 1 , wherein the molar ratio of molybdenum to vanadium is from 1:0.35 to 1:0.55.

3. The catalyst material of claim 1 , wherein the molar ratio of molybdenum to beryllium is from 1:0.35 to 1:0.75.

4. The catalyst material of claim 1 , wherein the catalyst material has an amorphous phase of from 45 wt. % to 75 wt. %.

5. The catalyst material of claim 1 , wherein the catalyst material has an average crystallite size of greater than 50 nm.

6. The catalyst material of claim 1 , wherein the catalyst material has a mean particle size from 0.5 μm to 10 μm.

7. The catalyst material of claim 1 , wherein the catalyst material has at least one XRD diffraction peak (20 degrees) selected from the group consisting of 6.5±0.2, 7.8±0.2, 8.9±0.2, 10.8±0.2, 13.2±0.2, 14.0±0.2, 22.1±0.2, 23.8±0.2, 25.2±0.2, 26.3±0.2, 26.6±0.2, 27.2±0.2, 27.6±0.2, 28.2±0.2, 29.2±0.2, 30.5±0.2, and 31.4±0.2, and wherein the XRD is obtained using CuKα radiation.

8. The catalyst material of claim 1 , wherein the catalyst material is an oxidative dehydrogenation catalyst material.

9. A catalyst material, comprising:
molybdenum;
vanadium;
beryllium;
aluminum; and
oxygen,
wherein:
a molar ratio of molybdenum to vanadium is from 1:0.25 to 1:0.65;
a molar ratio of molybdenum to beryllium is from 1:0.25 to 1:1.7;
a molar ratio of molybdenum to aluminum is from 1:1 to 1:9; and
oxygen is present at least in an amount to satisfy the valency of any present metal oxides, wherein the catalyst material has a 35% conversion temperature of ethane in a gas stream being converted to a product other than ethane at a weight hourly space velocity (WHSV) of 2.90 h −1 , a gas hourly space velocity (GHSV) of 2000 to 3000 h −1 , an inlet pressure in a range of 1 pound per square inch gauge (psig) to 2.5 psig, and an outlet pressure in a range of 0 psig to 0.5 psig of from about 300° C. to about 400° C.; and wherein the catalyst material has a selectivity to ethylene of from about 65% to 99% in the oxidative dehydrogenation of ethane at the 35% conversion temperature.

10. The catalyst material of claim 9 , wherein the molar ratio of molybdenum to vanadium is from 1:0.35 to 1:0.55.

11. The catalyst material of claim 9 , wherein the molar ratio of molybdenum to beryllium is from 1:0.35 to 1:0.75.

12. The catalyst material of claim 9 , wherein the molar ratio of molybdenum to aluminum is from 1:2 to 1:8.

13. The catalyst material of claim 9 , wherein at least a portion of the aluminum in the catalyst material is present as an aluminum oxide.

14. The catalyst material of claim 9 , wherein at least a portion of the aluminum in the catalyst material is present as gamma alumina.

15. The catalyst material of claim 9 , wherein the catalyst material has an amorphous phase of from 50 wt. % to 80 wt. %.

16. The catalyst material of claim 9 , wherein the catalyst material is an oxidative dehydrogenation catalyst material.

Assignees

• Nova Chem Int Sa

Inventors

• Simanzhenkov Vasily
• Kim Yoonhee
• Sullivan David
• Barnes Marie
• Sebastiao Elena

Classifications

• B01J2235/00

  Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title

• B01J35/77

  Compounds characterised by their crystallite size · CPC title

• B01J35/32

  Bulk density · CPC title

• B01J2235/30

  Scanning electron microscopy; Transmission electron microscopy · CPC title

• B01J35/37

  Crush or impact strength · CPC title