A process for the production of high purity ethyl acetate from ethanol is described. The process involves reacting ethanol over a suitable catalyst in a reactive distillation column. The reactive distillation setup allows overcoming the reaction equilibrium for increased conversion of ethanol. Hydro
A process for the production of high purity ethyl acetate from ethanol is described. The process involves reacting ethanol over a suitable catalyst in a reactive distillation column. The reactive distillation setup allows overcoming the reaction equilibrium for increased conversion of ethanol. Hydrogen is removed as the distillate and ethyl acetate is obtained as a bottoms product from the reactive distillation column. A feed of hydrogen at the bottom of the column and a suitable hydrogenation catalyst placed at the bottom of the column allows for a significant reduction of impurities such as butan-2-one, butyraldehyde in the ethyl acetate product. Adding side reactors to the reactive distillation column allows additional catalyst holdup for improved reactant conversion.
대표청구항▼
1. A reactive distillation process producing high purity ethyl acetate from ethanol, comprising dehydrogenating ethanol over a catalyst in a reactive distillation column, wherein ethyl acetate is removed during said distillation process as a liquid bottoms product and hydrogen is removed during said
1. A reactive distillation process producing high purity ethyl acetate from ethanol, comprising dehydrogenating ethanol over a catalyst in a reactive distillation column, wherein ethyl acetate is removed during said distillation process as a liquid bottoms product and hydrogen is removed during said distillation process as a gaseous top product. 2. The reactive distillation process of claim 1, further comprising hydrogenating contaminants in said liquid bottoms product and separating the hydrogenated contaminants from said ethyl acetate. 3. (canceled) 4. The reactive distillation process of claim 1, wherein said high purity ethyl acetate comprises at least 98% ethyl acetate. 5. The reactive distillation process of claim 1, wherein a single feed of ethanol is used. 6. The reactive distillation process of claim 5, wherein said reactive distillation column contains a generally central dehydrogenation catalyst zone and said single feed of ethanol is delivered into said column above or near the top of said catalyst zone. 7. The reactive distillation process of claim 5, wherein said reactive distillation column contains a generally central dehydrogenation catalyst zone and said single feed of ethanol is delivered into said column below or within said catalyst zone. 8. The reactive distillation process of claim 5, wherein said reactive distillation column contains a generally central dehydrogenation catalyst zone and said single feed of ethanol is delivered into said column at about the middle ⅓ of said catalyst zone. 9. The reactive distillation process of claim 6, wherein said dehydrogenation catalyst comprises a catalyst material selected from the group consisting of metals and/or oxides of copper, ruthenium, rhodium, platinum, palladium, rhenium, silver, cadmium, zinc, gold, thallium, manganese, aluminum, chromium, nickel, iron, molybdenum, and mixtures thereof. 10. The reactive distillation process of claim 9, wherein said catalyst material is on a support selected from the group consisting of carbon, alumina, silica, chromia, and titania. 11. The reactive distillation process of claim 5, further comprising a hydrogenation reactor comprising a hydrogenation catalyst, wherein n-butyraldehyde and butan-2-one, if present, are hydrogenated. 12. The reactive distillation process of claim 11, wherein said hydrogenation catalyst comprises a catalyst material selected from the group consisting of metals and/or oxides of nickel, palladium, platinum, ruthenium, iron, molybdenum, and mixtures thereof. 13. The reactive distillation process of claim 12, wherein said catalyst material is supported on a support material selected from the group consisting of carbon, alumina, silica, chromia and titania. 14. The reactive distillation process of claim 11, further comprising a separation column which receives product from said hydrogenation reactor, wherein n-butanol and 2-butanol are separated from ethyl acetate. 15. The reactive distillation process of claim 1, wherein dual feeds of ethanol and hydrogen are fed to said reactive distillation column, and wherein said ethanol feed is above said hydrogen feed. 16. The reactive distillation process of claim 15, wherein said reactive distillation column comprises a dehydrogenation catalyst zone and said ethanol feed is above or near the top of said dehydrogenation catalyst zone and said hydrogen feed is below or near the bottom of said dehydrogenation catalyst zone. 17. The reactive distillation process of claim 16, wherein said reactive distillation column further comprises a hydrogenation catalyst zone below said dehydrogenation catalyst zone, and said hydrogen feed is below, near the bottom of, or within said hydrogenation catalyst zone. 18. The reactive distillation process of claim 15, wherein the molar ratio of Ethanol:Hydrogen for the dual feed is from 1:10 to 1000:1. 19. The reactive distillation process of claim 1, wherein said reactive distillation is performed at a pressure from 1 bar to 50 bar. 20. The reactive distillation process of claim 1, wherein the number of stages or the number of height equivalents of a theoretical plate (HETP) is from 2 to 100. 21. A reactive distillation system for producing high purity ethyl acetate from ethanol, comprising a reactive distillation column comprising a dehydrogenation catalyst located generally centrally in said column;an ethanol feed which feeds ethanol into said column such that it passes over said dehydrogenation catalyst;a top product gaseous hydrogen removal passage;a bottoms product liquid ethyl acetate removal passage. 22. (canceled) 23. (canceled) 24. (canceled) 25. (canceled) 26. (canceled) 27. (canceled) 28. (canceled) 29. (canceled) 30. (canceled) 31. (canceled) 32. (canceled) 33. (canceled) 34. (canceled) 35. (canceled) 36. (canceled) 37. (canceled) 38. (canceled) 39. (canceled) 40. (canceled) 41. (canceled) 42. (canceled) 43. A reactive distillation process producing high purity methyl formate from methanol, comprising dehydrogenating methanol over a catalyst in a reactive distillation column, wherein methyl formate is removed during said distillation process as a liquid bottoms product and hydrogen is removed during said distillation process as a gaseous top product.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.