Process for the preparation of ETBE

Details Process for the preparation of ETBE Process for the preparation of ETBE

1992-10-16

1993-09-28

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4106

Patent

active

052488365

ABSTRACT:
A process is provided for selective etherification of iC.sub.4 =with EtOH to form ETBE in a distillation column reactor containing a fixed bed acid cation exchange resin as a catalytic distillation structure in a reaction distillation zone combined with a straight pass fixed bed reactor. A C.sub.4 feed containing isobutene is mixed with the total liquid downflow from the catalytic distillation reactor and passed to a straight pass fixed bed reactor, where up to about 85% of the isobutene is reacted with ethanol in the distillation column reactor effluent. This stream is returned to the distillation column reactor at a point below where the liquid downflow is withdrawn and then fractionated on conventional trays to remove ETBE as a bottom product. The remainder of the feed from the straight pass fixed bed reactor is vaporized into the reaction distillation zone of the distillation column reactor, where the unreacted isobutene is reacted with down coming ethanol fed at the upper end of the reaction distillation zone. Any water in the ethanol feed is stripped out and carried out the distillation column reactor with the unreacted C.sub.4 's.

REFERENCES:
patent: 4232177 (1980-11-01), Smith, Jr.
patent: 4307254 (1981-12-01), Smith, Jr.
patent: 4336407 (1982-06-01), Smith, Jr.
patent: 4950803 (1990-08-01), Smith, Jr. et al.

Affiliated with

Also associated with

Rating

Process for the preparation of ETBE does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of ETBE, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of ETBE will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2192309