Equipment for mixed phase reaction distillation

An equipment for mixed phase reaction distillation having a column with an upper part, a middle part and a lower part, the equipment comprising:

• a rectifying section I containing a plurality of distillation trays including a lowermost tray at the upper part, a reaction section II at the middle part, and a stripping section III containing a plurality of distillation trays including an uppermost tray at the lower part, wherein said reaction section II comprises:
• a) one catalyst bed;
• b) a sealed cover above said catalyst bed of said reaction section II;
• c) at least one means providing a vapor passageway disposed vertically at one side in said reaction section II, and at least one means providing a liquid passageway disposed vertically at the opposite side in said reaction section II;
• and
• d) one feed inlet disposed between said sealed cover and said catalyst bed for introducing preheated feed from a preheater.

An equipment for mixed phase reaction distillation having a column with an upper part, a middle part and a lower part, the equipment comprising:

• a rectifying section I containing a plurality of distillation trays including a lowermost tray at the upper part, a reaction section II at the middle part and a stripping section III containing a plurality of trays including an uppermost tray at the lower part, wherein said reaction section II comprises:
• a) a lower reaction zone IIa, a middle distillation zone IIb, and an upper reaction zone IIc;
• b) said lower reaction zone IIa including one catalyst bed or a plurality of superposed catalyst beds which are connected by at least one catalyst flow pipe disposed between each pair of adjacent catalyst beds, a sealed cover above said catalyst bed or above an uppermost catalyst bed of said plurality catalyst beds of said lower reaction zone IIa;
• c) said middle distillation zone IIb including at least one distillation tray and a liquid phase inlet at one side and vapor phase outlet at the opposite side of the uppermost portion of said zone IIb;
• d) said upper reaction zone IIc including one catalyst bed and a top, a sealed cover above said catalyst bed of said upper reaction zone IIc, a feed inlet disposed between said catalyst bed and said sealed cover at the top of the upper reaction zone IIc:
• e) a partition disposed between said upper reaction zone IIc and said middle distillation zone IIb, and a liquid phase outlet disposed above said partition;
• and
• f) at least one means providing a vapor passageway disposed vertically at one side and at least one means providing a liquid passageway disposed vertically at the opposite side in said lower reaction zone IIa;
• and at least one means providing a vapor passageway disposed vertically at one side and at least one means providing a liquid passageway disposed vertically at the opposite side in said upper reaction zone IIc.