Title:
ALKYLENE OXIDE PURIFICATION COLUMN WITH TWO INTERNAL CONDENSERS
Document Type and Number:
WIPO Patent Application WO/2010/014188
Kind Code:
A3
Abstract:
Embodiments of the present disclosure include processes and systems for recovering alkylene oxide. System embodiments include a stripping section (202) located in an alkylene oxide recovery column to convert a feed stream comprising to a first gas phase portion comprising alkylene oxide, a condensing zone comprising at least a first condenser (207) and a second condenser (209) configured in series, and a reabsorption region (204) located in the alkylene oxide recovery column above the last of the at least two condensers.
Inventors:
SZUL JOHN F (US)
MCCAIN JAMES H (US)
PFEFFER FLOYD L (US)
ANDRESEN HARVEY E (US)
FAIRCHILD PHILLIP R (US)
NEWMAN KENT E (US)
MCCAIN JAMES H (US)
PFEFFER FLOYD L (US)
ANDRESEN HARVEY E (US)
FAIRCHILD PHILLIP R (US)
NEWMAN KENT E (US)
Application Number:
PCT/US2009/004319
Publication Date:
March 25, 2010
Filing Date:
July 24, 2009
Export Citation:
Assignee:
DOW TECHNOLOGY INVESTMENTS LLC (US)
SZUL JOHN F (US)
MCCAIN JAMES H (US)
PFEFFER FLOYD L (US)
ANDRESEN HARVEY E (US)
FAIRCHILD PHILLIP R (US)
NEWMAN KENT E (US)
SZUL JOHN F (US)
MCCAIN JAMES H (US)
PFEFFER FLOYD L (US)
ANDRESEN HARVEY E (US)
FAIRCHILD PHILLIP R (US)
NEWMAN KENT E (US)
International Classes:
B01D3/14; B01D3/20; B01D3/22; B01D3/42; B01D5/00; C07D301/32
Domestic Patent References:
| WO2006120207A1 | 2006-11-16 |
Foreign References:
| US2815650A | 1957-12-10 | |||
| US4033617A | 1977-07-05 |
Attorney, Agent or Firm:
HUEBSCH, Joseph, C. et al. (Cameron & Huebsch PLLC,1221 Nicollet Avenue, Suite 50, Minneapolis MN, US)
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