Method and catalyst for the production of 1,3-butadiene from ethanol

Patent metadata

Field	Value
Publication number	US-11969714-B2
Application number	US-202017430889-A
Country	US
Kind code	B2
Filing date	Feb 10, 2020
Priority date	Feb 13, 2019
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

The present invention is concerned with a catalyst for the conversion of ethanol to 1,3-butadiene comprising a component A selected from the list consisting of zeolite, silicon dioxide, aluminium oxide, or any combination thereof; and a component B cat comprising a mixed metal oxide, a catalyst precursor for the preparation of a catalyst for the conversion of ethanol to 1,3-butadiene comprising a component A selected from the list consisting of zeolite, silicon dioxide, aluminium oxide, or any combination thereof; and a component B pre comprising a layered double hydroxide (LDH) as well as a process for the conversion of ethanol to 1,3-butadiene, in which said catalyst is used.

First claim

The invention claimed is:

1. A catalyst for the conversion of ethanol to 1,3-butadiene comprising
i) component A, which is selected from a list consisting of zeolite, silicon dioxide, aluminum oxide, or any combination thereof; and
ii) component B cat comprising a mixed metal oxide;
wherein the mixed metal oxide is a layered double oxide,
wherein the layered double oxide comprises a first metal DM and a second metal TM,
characterized in that the first metal DM comprises a combination of Mg, Cu, and Ni.

2. The catalyst according to claim 1 , wherein the weight ratio of component A to component B cat is in the range from 1:0.05 to 1:2.5.

3. The catalyst according to claim 1 , wherein the catalyst has a core-shell structure, wherein the core of the core-shell structure comprises component A and the shell of the core-shell-structure comprises component B cat .

4. The catalyst according to claim 1 , wherein the second metal TM is selected from a list consisting of Al, Ga, In, Y, Fe, Co, Mn, Cr, Ti, V, La, Sn, Zr, and combinations thereof.

5. The catalyst according to claim 1 , wherein component A is a zeolite selected from the group consisting of ZSM-5, X-zeolite, Y-zeolite, USY-zeolite, beta-zeolite, MCM-22, ferrierrite, chabazite, and combinations thereof.

6. The catalyst according to claim 5 , wherein the zeolite has a molar ratio of Si to Al in the range from 1:1 to 5000:1.

7. The catalyst according to claim 1 , wherein the molar ratio of Mg:Cu:Ni is in the range of 1-5: 0.01-3: 0.01-3.

8. A process for producing 1,3-butadiene comprising contacting an ethanol stream with a catalyst according to claim 1 .

9. Use of a catalyst according to claim 1 for the conversion of ethanol to 1,3-butadiene.

10. A catalyst precursor for the preparation of a catalyst for the conversion of ethanol to 1,3-butadiene comprising
i) component A, which is selected from a list consisting of zeolite, silicon dioxide, aluminum oxide, or any combination thereof; and
ii) component B pre comprising a layered double hydroxide
wherein the layered double hydroxide comprises a first metal DM and a second metal TM,
characterized in that the first metal DM comprises a combination of Mg, Cu, and Ni.

11. The catalyst precursor according to claim 10 , wherein the weight ratio of component A to component B pre is in the range from 1:0.1 to 1:5.

12. The catalyst precursor according to claim 10 , wherein the catalyst precursor has a core-shell structure, wherein the core of the core shell structure comprises component A and the shell of the core-shell-structure comprises component B pre .

13. The catalyst precursor according to claim 10 , wherein the second metal TM is selected from a list consisting of Al, Ga, In, Y, Fe, Co, Mn, Cr, Ti, V, La, Sn, Zr, and combinations thereof.

14. The catalyst precursor according to claim 10 , wherein component A is a zeolite selected from the group consisting of ZSM-5, X-zeolite, Y-zeolite, USY-zeolite, beta-zeolite, MCM-22, ferrierrite, chabazite, and combinations thereof.

15. The catalyst precursor according to claim 14 , wherein the zeolite has a molar ratio of Si to Al in the range from 1:1 to 5000:1.

16. Use of a catalyst precursor according to claim 10 for the preparation of a catalyst for the conversion of ethanol to 1,3-butadiene.

17. The catalyst precursor according to claim 10 , wherein the molar ratio of Mg:Cu:Ni is in the range of 1-5: 0.01-3: 0.01-3.

Assignees

• Scg Chemicals Co Ltd

Inventors

• Wangriya Aunchana

Classifications

• B01J2235/15

  X-ray diffraction · CPC title

• B01J35/70

  characterised by their crystalline properties, e.g. semi-crystalline (catalysts comprising carbon B01J21/18; molecular sieves B01J29/00) · CPC title

• B01J2235/30

  Scanning electron microscopy; Transmission electron microscopy · CPC title

• B01J35/53

  with a core-shell structure · CPC title

• B01J35/73

  having a two-dimensional [2D] layered crystalline structure, e.g. layered double hydroxide [LDH] · CPC title