摘要:
The present invention relates to a process for the formation of an alcohol from an alkanoic acid, the steps of the process comprising: contacting a feed stream containing the alkanoic acid and hydrogen at an elevated temperature with a hydrogenating catalyst comprising from 3 to 25 wt. % of active metals comprising tin and cobalt and a metal promoter selected from the group consisting of noble metals or first metal, the first metal selected from the group of barium, cesium and potassium.
摘要:
The present invention relates to a catalyst composition having a support that contains tin. The catalyst is used for converting acetic acid to ethanol. The catalyst may also comprise one or more active metals and a support modifier.
摘要:
The present invention relates to a process for producing product comprising ethanol which comprises contacting a feedstock comprising acetic acid and hydrogen in a reaction zone at hydrogenation conditions with a catalyst composition comprising at least one active metal that may include a Group VIII metal and tin and from 0.01 to 0.5 wt. % cesium on a support comprising tungsten or oxides thereof.
摘要:
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.
摘要:
The present invention relates to a process for producing ethanol by contacting a feedstock comprising acetic acid and hydrogen in a reaction zone at hydrogenation conditions including a temperature from 125° C. to 350° C. with a catalyst composition, wherein the catalyst composition comprises from 1.5 wt. % to 3 wt. % active metals on a titania support, said active metals comprising at least one Group VIII metal and an excess molar amount of tin, relative to the at least one Group VIII metal.
摘要:
The present invention relates to a catalyst having an amorphous support and one or more active metals. The amorphous support may comprise a support material and an amorphous support modifier, which adjusts the acidity of the support material. In preparing the amorphous catalyst, post-synthesis treatment, i.e. calcination, may be used to adjust the catalyst performance while converting acetic acid to ethanol.
摘要:
The present invention relates to a catalyst having an amorphous support and one or more active metals. The amorphous support may comprise a support material and an amorphous support modifier, which adjusts the acidity of the support material. In preparing the amorphous catalyst, post-synthesis treatment, i.e. calcination, may be used to adjust the catalyst performance while converting acetic acid to ethanol.
摘要:
A hydrogenation catalyst and process using the catalyst for converting a mixture comprising acetic acid and ethyl acetate to ethanol at a first temperature, and the catalyst desorbs ethyl acetate, in the absence of hydrogen, at a second temperature that is greater than the first temperature. The catalyst has a suitable chemisorption of ethyl acetate at the first temperature in the absence of hydrogen. In one embodiment, the first temperature ranges from 125° C. to 350° C. and the second temperature ranges from 300° C. to 600° C. The catalyst comprises one or more active metals or oxide thereof on a support that comprises tungsten or an oxide thereof. The one or more active metals are selected from the group consisting of cobalt, copper, gold, iron, nickel, palladium, platinum, iridium, osmium, rhenium, rhodium, ruthenium, tin, zinc, lanthanum, cerium, manganese, chromium, vanadium, and molybdenum.
摘要:
The present invention relates to processes for producing ethanol using a catalyst comprising rhodium and tin on a support. The rhodium and tin may be present in a molar ratio of 20:80 to 80:20.
摘要:
The present invention relates to a process for producing product comprising ethanol which comprises contacting a feedstock comprising acetic acid and hydrogen in a reaction zone at hydrogenation conditions with a catalyst composition comprising platinum, palladium and tin on a support, wherein the catalyst has an excess amount of platinum relative to the amount of palladium based on weight.