Conversion of acetone and/or alcohol(s) to alcohol(s) and/or aliphatic hydrocarbons
A process for the production of saturated or unsaturated aliphatic alcohols and/or hydrocarbons includes condensing acetone and/or alcohol(s) to form one or more carbonyl compounds, and hydrogenating and/or hydrodeoxygenating at least one of the one or more carbonyl compounds to form the saturated or unsaturated alcohol(s) and/or hydrocarbons. In some embodiments, the condensation of acetone and/or alcohol(s) may be carried out in the presence of a solid acid catalyst and a transition metal catalyst. The saturated or unsaturated aliphatic alcohols and/or hydrocarbons may include one or more saturated linear C9 alcohols, C9 alkanes and/or one or more mono-unsaturated C9 alkenes.
1. A process for the production of a saturated or unsaturated aliphatic alcohol product and/or a saturated or unsaturated aliphatic hydrocarbon, the process comprising:
condensing acetone and/or an alcohol reactant in the presence of first and second catalysts to form one or more carbonyl compounds, the first catalyst being different from the second catalyst, and the second catalyst being either unsupported or supported on a catalyst support, the catalyst support being different from the first catalyst, and the second catalyst comprising:
a transition metal catalyst comprising a transition metal selected from the group consisting of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn and combinations thereof, or
a zeolite catalyst;
hydrogenating and/or hydrodeoxygenating at least one of the one or more carbonyl compounds to form the saturated or unsaturated alcohol product and/or the saturated or unsaturated hydrocarbon.
2. The process of claim 1 , wherein the first catalyst comprises a solid acid or a base.
3. The process according to claim 2 , wherein the first catalyst comprises an acidic cation exchange resin.
4. The process according to claim 1 , wherein the second catalyst comprises Ni, Cu and/or Fe.
5. The process according to claim 1 , wherein the second catalyst is supported on the catalyst support.
6. The process according to claim 5 , wherein the catalyst support comprises carbon, alumina and/or silica.
7. The process according to claim 1 , wherein the hydrogenating and/or hydrodeoxygenating the at least one of the one or more carbonyl compounds comprises:
hydrogenating the at least one of the one or more carbonyl compounds to form one or more intermediate alcohols; and
hydrodeoxygenating at least one of the one or more intermediate alcohols to form at least one saturated or unsaturated hydrocarbon.
8. The process according to claim 7 , wherein the hydrogenating the at least one of the one or more carbonyl compounds is performed in the presence of a fourth catalyst.
9. The process according to claim 8 , wherein the fourth catalyst comprises a transition metal catalyst, a zeolite catalyst, a precious metal catalyst, or a combination thereof.
10. The process according to claim 7 , wherein the hydrodeoxygenating the at least one of the one or more intermediate alcohols is performed in the presence of a third catalyst.
11. The process according to claim 10 , wherein the third catalyst comprises a solid acid or a base.
12. The process according to claim 1 , wherein the hydrogenating and/or hydrodeoxygenating the at least one of the one or more carbonyl compounds comprises a one-pot process.
13. The process according to claim 12 , wherein the one-pot process is performed in the presence of third and fourth catalysts.
14. The process according to claim 13 , wherein the third catalyst comprises a solid acid or a base, and the fourth catalyst comprises a transition metal catalyst, a zeolite catalyst, a precious metal catalyst, or a combination thereof.
15. The process according to claim 1 , wherein the one or more carbonyl compounds comprises one or more C6 carbonyl compounds, C9 carbonyl compounds and/or C12 carbonyl compounds.
16. The process according to claim 1 , wherein the one or more carbonyl compounds comprises a mixture of at least two different carbonyl compounds.
17. The process according to claim 1 , wherein the one or more carbonyl compounds comprises a mixture of 4-methyl-2-pentanone, 2,6-dimethyl-4-heptanone, 4,6-dimethyl-2-heptanone, and 2,6,8-trimethyl-4-nonanone.
18. The process according to claim 1 , wherein the one or more carbonyl compounds comprises up to 36% carbon yield of 4-methyl-2-pentanone, up to 24% carbon yield of 2,6-dimethyl-4-heptanone, up to 6% carbon yield of 4,6-dimethyl-2-heptanone, and up to 34% carbon yield of 2,6,8-trimethyl-4-nonanone.
19. A process for the production of a saturated or unsaturated aliphatic alcohol product and/or a saturated or unsaturated aliphatic hydrocarbon, the process comprising:
converting an alcohol reactant to acetone;
condensing the acetone in the presence of first and second catalysts to form one or more carbonyl compounds, the first catalyst being different from the second catalyst, and the second catalyst being either unsupported or supported on a catalyst support, the catalyst support being different from the first catalyst, and the second catalyst comprising:
a transition metal catalyst comprising a transition metal selected from the group consisting of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn and combinations thereof, or
a zeolite catalyst;
hydrogenating and/or hydrodeoxygenating at least one of the one or more carbonyl compounds to form the saturated or unsaturated alcohol product and/or the saturated or unsaturated hydrocarbon.
20. The process according to claim 19 , wherein the converting the alcohol reactant to acetone is performed in the presence of a fifth catalyst comprising a transition metal catalyst, a zeolite catalyst, a precious metal catalyst, or a combination thereof.