skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
 [1]
  1. (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) IDO
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}
}

Patent:

Save / Share: