Method for etherifications
Abstract
A method 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 's and 15 to 100 psig in the case of C.sub.5 's 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 's and 0 to 15 psig in the case of C.sub.5 's 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.
- Inventors:
-
- (Friendswood, TX)
- Issue Date:
- Research Org.:
- CR & L/NEOCHEM JOINT VENTURE
- OSTI Identifier:
- 865370
- Patent Number(s):
- 4504687
- Assignee:
- Chemical Research & Licensing Company (South Houston, TX)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
- DOE Contract Number:
- FC07-80CS40454
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; etherifications; producing; tertiary; ethers; streams; containing; isobutene; isoamylene; respectively; process; acidic; cation; exchange; resin; catalyst; distillation; structure; reactor; column; improvement; operation; catalytic; zones; pressures; zone; packing; operated; pressure; range; 100; 200; psig; 15; favors; etherification; reaction; overhead; fractionated; remove; portion; unreacted; alcohol; return; condensed; produce; streams containing; zone containing; acidic cation; portion containing; distillation structure; catalytic distillation; cation exchange; exchange resin; distillation reactor; /999/203/
Citation Formats
Jones, Jr., Edward M. Method for etherifications. United States: N. p., 1985.
Web.
Jones, Jr., Edward M. Method for etherifications. United States.
Jones, Jr., Edward M. Tue .
"Method for etherifications". United States. https://www.osti.gov/servlets/purl/865370.
@article{osti_865370,
title = {Method for etherifications},
author = {Jones, Jr., Edward M.},
abstractNote = {A method 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 's and 15 to 100 psig in the case of C.sub.5 's 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 's and 0 to 15 psig in the case of C.sub.5 's 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}