Crystalline microporous material mediated conversion of C1-3 oxygenate compounds to C4 oxygenate compounds

Patent metadata

Field	Value
Publication number	US-11034713-B2
Application number	US-201515319332-A
Country	US
Kind code	B2
Filing date	Jun 18, 2015
Priority date	Jun 19, 2014
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

A process for the preparation of C4 oxygenate compounds such as threose, erythrose or erythrulose starting from a composition comprising C1-3 oxygenate compounds such as formaldehyde, glycolaldehyde, glyoxal, pyruvaldehyde or acetol, wherein the process is carried out in the presence of a crystalline microporous material having a ring pore structure selected from an eight-membered ring pore structure or a ten-membered ring pore structure.

First claim

The invention claimed is:

1. A process for the preparation of one or more C 4 oxygenate compounds of the formula C 4 H 8 O 4 from a composition comprising C 1-3 oxygenate compounds, the C 4 oxygenate compounds selected from one or more of the group consisting of threose, erythrose and erythrulose, wherein the composition comprising C 1-3 oxygenate compounds comprises glycolaldehyde and wherein the C 4 oxygenates are selectively formed from glycolaldehyde in the presence of a solvent and a crystalline microporous material comprising a zeotype material comprising a metal selected from one or more of the group consisting of zirconium, aluminum, tin or titanium and having a structure selected from the group consisting of CHA, LTA, MFI, MEL, MTT, MWW, TON, HEU, AEL, AFO, and FER, wherein the C 4 oxygenate compounds do not further react to form oxygenate compounds with a greater number of carbon atoms.

2. The process according to claim 1 , wherein the composition comprising C 1-3 oxygenate compounds further comprises one or more compounds selected from the group consisting of formaldehyde, glyoxal, pyruvaldehyde and acetol.

3. The process according to claim 2 , wherein the composition comprising C 1-3 oxygenate compounds comprises glycolaldehyde at a concentration of at least 5 wt %.

4. The process according to claim 1 , wherein the solvent is selected from one or more of the groups consisting of water, alcohol and a water and alcohol mixture.

5. The process according to claim 4 , wherein the alcohol is selected from one or more of the group consisting of methanol and ethanol.

6. The process according to claim 1 , wherein the crystalline microporous material comprises from 0.1 wt % to 15 wt % of the metal.

7. The process according to claim 1 , wherein the process is carried out at a temperature between 25° C. and 150° C.

8. The process according to claim 1 , further comprising the step of hydrogenating the C 4 oxygenate compounds.

9. The process according to claim 1 , wherein the process is a one-step process.

10. The process according to claim 1 , further comprising the steps of isomerizing and esterifying the C 4 oxygenate compounds in the presence of Sn zeolite beta (Sn-BEA).

11. The process according to claim 1 , further comprising the step of converting the C 4 oxygenate compounds to one or more compounds selected from the group consisting of erythritol and threitol.

12. The process according to claim 1 , wherein a prior step is performed of pyrolyzing biomass or one or more oxygenate compounds selected from the group consisting of fructose, glucose, sucrose, xylose or isomers thereof, to produce a composition comprising the C 1-3 oxygenate compounds.

Assignees

• Haldor Topsoe As

Inventors

• Shunmugavel Saravanamurugan
• Sadaba Zubiri Irantzu
• Taarning Esben
• Holm Martin Spangsberg

Classifications

• B01J29/85

  Silicoaluminophosphates [SAPO compounds] · CPC title

• B01J2229/183

  in framework positions · CPC title

• B01J29/89

  Silicates, aluminosilicates or borosilicates of titanium, zirconium or hafnium {(B01J29/005 takes precedence)} · CPC title

• C01B39/46

  Other types characterised by their X-ray diffraction pattern and their defined composition {(C01B39/023, C01B39/026, C01B39/06 take precedence)} · CPC title

• C01B39/40

  using at least one organic template directing agent · CPC title