Process for etherification of a dehydrogenation zone effluent

Details Process for etherification of a dehydrogenation zone effluent Process for etherification of a dehydrogenation zone effluent

1987-10-30

1989-02-21

Mars, Howard T.

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

Organic compounds

Oxygen containing

L07C 4106

Patent

active

048066958

ABSTRACT:
A combined process for the dehydrogenation of C.sub.3 -C.sub.5 paraffins in a first zone and the conversion of olefins in a second zone improves efficiency by directly charging all but the lightest components of the dehydrogenation zone effluent to the olefin conversion zone. This process is particularly suited for the production of gasoline boiling range ethers where an isoparaffin is dehydrogenated in a first zone to produce isoolefins. After separation of hydrogen and methane, the dehydrogenation zone effluent is charged along with a C.sub.1 -C.sub.5 alcohol to an etherification zone for the production of ether. The etherification zone effluent is separated into at least two component streams one comprising light ends, isoparaffins, and oxygenates and the other comprising an ether product. After passage through an alcohol recovery zone, the isoparaffins are separated from the other lighter recycled material and combined with the feed to dehydrogenation zone. A particular arrangement of this invention uses an etherification zone for the production of MTBE and two fractionation columns to yield an overhead stream of light ends, a stream of recycle isoparaffins and methanol, and a product stream of MTBE. The arrangement also simplifies the recovery of oxygen containing compounds by allowing the use of only a methanol recovery zone without the additional cost of a separate oxygenate recovery unit.

REFERENCES:
patent: 2720547 (1955-10-01), Wolff et al.
patent: 4118425 (1978-10-01), Herbstman
patent: 4219678 (1980-08-01), Obenaus et al.
patent: 4329516 (1982-05-01), Al-Muddarris
patent: 4465870 (1984-08-01), Herskovits
Chemical Engineering News, Jun. 25, 1979 Edition, p. 35.
Huls-Process; Methyl Tertiary Butylether, presented at the American Institute of Chemical Engineers, 85th National Meeting on 6-4-78, by F. Obenaus et al.
Hydrocarbon Processing, Oct. 1980 Edition, p. 91.

Affiliated with

Also associated with

Rating

Process for etherification of a dehydrogenation zone effluent 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 etherification of a dehydrogenation zone effluent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for etherification of a dehydrogenation zone effluent will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1523454