Ether recovery

Details Ether recovery Ether recovery

1994-05-20

1995-09-05

Manoharan, Virginia

Distillation: apparatus

Apparatus

Systems

202155, 203 14, 203 45, 203 46, 203 71, 203DIG16, 568699, B01D 314, C07C 4134, C07C 4138

Patent

active

054476070

ABSTRACT:
Process equipment is provided for separating ether, alcohol and hydrocarbon components from various etherifications of C.sub.4 or C.sub.5 isoolefins with an alcohol such as methanol or ethanol, and wherein identical process vessels are utilized for recovery of MTBE, ETBE, TAME, or TAEE. In use the process vessels are serially arranged in three zones. The first zone includes a first water wash vessel followed by a first fractionator and provides the ether product, the second zone includes a second wash vessel followed by a hydrocarbon stripper and recovers a stabilized hydrocarbon stream, the third zone includes a second fractionator which recovers an alcohol suitable for recycling.

REFERENCES:
patent: 4014667 (1977-03-01), Barber
patent: 4346241 (1982-08-01), Feldman
patent: 4399000 (1983-08-01), Tedder
patent: 4544776 (1985-10-01), Osterburg et al.
patent: 4770780 (1988-09-01), Moses
patent: 5167937 (1992-12-01), Harandi et al.

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