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Title: Method for etherifications

Abstract

A method is described for producing tertiary ethers from C[sub 4] or C[sub 5] streams containing isobutene and isoamylene respectively in a process wherein a acidic cation exchange resin is used as the catalyst and as a distillation structure in a distillation reactor column, wherein the improvement is the operation of the catalytic distillation in two zones at different pressures, the first zone containing the catalyst packing and operated a higher pressure in the range of 100 to 200 psig in the case of C[sub 4] and 15 to 100 psig in the case of C[sub 5] which favors the etherification reaction and the second zone being a distillation operated at a lower pressure in the range of 0 to 100 psig in the case of C[sub 4] and 0 to 15 psig in the case of C[sub 5] wherein a first overhead from the first zone is fractionated to remove a portion of the unreacted alcohol from the first overhead and to return a condensed portion containing said alcohol to the first zone and to produce a second overhead having less alcohol than said first overhead. 3 figs.

Inventors:
Issue Date:
OSTI Identifier:
7012229
Patent Number(s):
4504687 A
Application Number:
PPN: US 6-529926
Assignee:
Chemical Research Licensing Co., South Houston, TX (United States) PTO; EDB-94-122003
DOE Contract Number:  
FC07-80CS40454
Resource Type:
Patent
Resource Relation:
Patent File Date: 7 Sep 1983
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; CHEMICAL REACTORS; PRESSURE CONTROL; DISTILLATION EQUIPMENT; ETHERS; SYNTHESIS; CATALYTIC EFFECTS; ION EXCHANGE MATERIALS; CONTROL; EQUIPMENT; MATERIALS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; 100200* - Synthetic Fuels- Production- (1990-)

Citation Formats

Jones, E.M. Jr. Method for etherifications. United States: N. p., 1985. Web.
Jones, E.M. Jr. Method for etherifications. United States.
Jones, E.M. Jr. Tue . "Method for etherifications". United States.
@article{osti_7012229,
title = {Method for etherifications},
author = {Jones, E.M. Jr.},
abstractNote = {A method is described for producing tertiary ethers from C[sub 4] or C[sub 5] streams containing isobutene and isoamylene respectively in a process wherein a acidic cation exchange resin is used as the catalyst and as a distillation structure in a distillation reactor column, wherein the improvement is the operation of the catalytic distillation in two zones at different pressures, the first zone containing the catalyst packing and operated a higher pressure in the range of 100 to 200 psig in the case of C[sub 4] and 15 to 100 psig in the case of C[sub 5] which favors the etherification reaction and the second zone being a distillation operated at a lower pressure in the range of 0 to 100 psig in the case of C[sub 4] and 0 to 15 psig in the case of C[sub 5] wherein a first overhead from the first zone is fractionated to remove a portion of the unreacted alcohol from the first overhead and to return a condensed portion containing said alcohol to the first zone and to produce a second overhead having less alcohol than said first overhead. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {3}
}