Method for catalytic conversion of ketoacids and hydrotreament to hydrocarbons
AssigneeNeste Oyj
InventorsMarina Lindblad, Elias Ikonen, Maaria Seläntaus, Mats Käldström
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Abstract
Catalytic conversion of ketoacids is disclosed, including methods for increasing the molecular weight of ketoacids. An exemlary method includes providing in a reactor a feedstock having at least one ketoacid. The feedstock is then subjected to one or more C—C-coupling reaction(s) in the presence of a catalyst system having a first metal oxide and a second metal oxide.
Claims26
A method for increasing the molecular weight of a ketoacid, the method comprising:
- providing in a reactor a feedstock having at least one ketoacid;
- and
- subjecting the feedstock to one or more C—C-coupling reaction(s), wherein the one or more C—C-coupling reaction(s) are conducted in a presence of a solid acid catalyst system having a first metal oxide and a second metal oxide, wherein a content of the at least one ketoacid in the feedstock is at least 30 wt % and the content of water in the feedstock is less than 5.0 wt-%,
- wherein the one or more C—C-coupling reaction(s) provides one or more selected from the group consisting of a ketoacid dimer, trimer, tetramer, pentamer, and hexamer, and
- wherein the solid acid catalyst system contains the first metal oxide containing tungsten oxide, ceria, or silica supported on a metal oxide carrier, wherein the metal oxide carrier contains the second metal oxide selected from the group consisting of zirconia and titania.
A method for producing hydrocarbons by increasing a molecular weight of a ketoacid to obtain a C—C-coupling reaction product, the method comprising:
- providing in a reactor a feedstock having at least one ketoacid;
- subjecting the feedstock to one or more C—C-coupling reaction(s),
- wherein the one or more C—C-coupling reaction(s) are conducted in a presence of a solid acid catalyst system having a first metal oxide and a second metal oxide, and wherein a content of the at least one ketoacid in the feedstock is at least 30 wt % and the content of water in the feedstock is less than 5.0 wt-%;
- subjecting the C—C-coupling reaction product to hydrodeoxygenation,
- wherein the one or more C—C-coupling reaction(s) provides one or more selected from the group consisting of a ketoacid dimer, trimer, tetramer, pentamer, and hexamer, and
- wherein the solid acid catalyst system contains the first metal oxide containing tungsten oxide, ceria, or silica supported on a metal oxide carrier, wherein the metal oxide carrier contains the second metal oxide selected from the group consisting of zirconia and titania.
Dependencies are inferred from the claim text.