Catalysts for Converting Acetic Acid to Acetone
AssigneeCelanese International Corporation
InventorsZhenhua Zhou, Radmila Jevtic, Victor J. Johnston, Heiko Weiner
Life of this patent
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Abstract
The present invention relates to a process for the formation of acetone from acetic acid. The process is conducted at an elevated temperature of above 225° C. by contacting a feed stream containing acetic acid, and an optional carrier gas, with a catalyst. The catalyst comprises a support that is favorable for the production of acetone. The support may comprise titania, zirconia, ceria, silica, iron oxide, and carbon, but preferably is titania, zirconia, and ceria.
Claims23
A process for producing acetone from acetic acid comprising:
- contacting a feed stream containing acetic acid at an elevated temperature with a catalyst comprising one or more metals selected from the group consisting of silver, gold, cobalt, chromium, copper, iron, iridium, nickel, palladium, platinum, rhenium, rhodium, ruthenium, and zinc on a support selected from the group consisting of titania, zirconia, ceria, and silica.
A process for producing acetone from acetic acid comprising:
- contacting a feed stream containing acetic acid at an elevated temperature with a catalyst comprising one or more metals selected from the group consisting of silver, gold, cobalt, chromium, copper, iron, iridium, nickel, palladium, platinum, rhenium, rhodium, ruthenium, and zinc on a support selected from the group consisting of titania, zirconia, and ceria, provided that when the support is titania the one or more metal is not rhenium.
A process for producing acetone from acetic acid comprising:
- contacting a feed stream containing acetic acid at an elevated temperature with a catalyst comprising one or more metals selected from the group consisting of palladium and ruthenium on a silica support.
A process for producing acetone from acetic acid comprising:
- contacting a feed stream containing acetic acid at an elevated temperature with a catalyst comprising one or more metals selected from the group consisting of copper and ruthenium on an iron oxide support.
A process for producing acetone from acetic acid comprising:
- contacting a feed stream containing acetic acid at an elevated temperature with a catalyst comprising one or more metals selected from the group consisting of palladium and iron on a carbon support.
A process for producing acetone from a carbonaceous material, comprising:
- converting the carbonaceous material to acetic acid;
- and
- contacting a feed stream containing the acetic acid at an elevated temperature with a catalyst comprising one or more metals selected from the group consisting of silver, gold, cobalt, chromium, copper, iron, iridium, nickel, palladium, platinum, rhenium, rhodium, ruthenium, and zinc on a support selected from the group consisting of titania, zirconia, ceria, and silica.
A process for producing acetone from a carbonaceous material, comprising:
- converting the carbonaceous material into a first stream comprising syngas;
- converting at least some of said syngas into a second stream comprising methanol;
- separating some of said syngas into hydrogen and carbon monoxide;
- converting at least some of said methanol with some of said carbon monoxide into a third stream comprising acetic acid;
- and
- contacting a feed stream containing the acetic acid and hydrogen at an elevated temperature with a catalyst comprising one or more metals selected from the group consisting of silver, gold, cobalt, chromium, copper, iron, iridium, nickel, palladium, platinum, rhenium, rhodium, ruthenium, and zinc on a support selected from the group consisting of titania, zirconia, ceria, and silica.
Dependencies are inferred from the claim text.