Title:
CONTINUOUS METHOD AND HEAT PUMP DEVICE FOR ENRICHING LIQUID LOW-CONCENTRATED REACTION MIXTURES
Document Type and Number:
WIPO Patent Application WO2000007967
Kind Code:
A3
Abstract:
The invention relates to a continuous method and a heat pump device for enriching low-concentrated reaction mixtures resulting from the production of cycloalkandienes by means of catalytic metathesis of cyclic aliphatic alkenes and cyclooligomers in organic reaction media. Using the heat pump principle, liquid reaction mixtures with a content of = 0.1 % by weight are enriched in the organic reaction medium by 30 to 50 %. To this end, the organic reaction medium is evaporated in the evaporator at a temperature T1, the vapor is suctioned and compressed in a compressor whose pressure difference ranges from 0.25 to 1 bar at a temperature T2. The compressed vapor of the reaction medium transfers the heat energy obtained from electrical energy in the heat exchanger of the evaporator to the organic reaction medium of temperature T1, wherein the difference in temperature T2-T1 does exceed 12 K. According to the inventive method, energy consumption for evaporation of the organic reaction medium is reduced by approximately 85 % and costs are lowered by approximately 30 %.
Inventors:
BRABAND JUERGEN (DE)
MUELLER PETER (DE)
BERNHARDT RUEDIGER (DE)
OTTO ANDREAS (DE)
MUELLER PETER (DE)
BERNHARDT RUEDIGER (DE)
OTTO ANDREAS (DE)
Application Number:
PCT/DE1999/002347
Publication Date:
May 18, 2000
Filing Date:
July 30, 1999
Export Citation:
Assignee:
MILTITZ AROMATICS GMBH (DE)
BRABAND JUERGEN (DE)
MUELLER PETER (DE)
BERNHARDT RUEDIGER (DE)
OTTO ANDREAS (DE)
BRABAND JUERGEN (DE)
MUELLER PETER (DE)
BERNHARDT RUEDIGER (DE)
OTTO ANDREAS (DE)
International Classes:
B01D1/00; B01D1/28; F25B1/00; C07C6/00; C07C6/06; C07C7/04; C07C13/02; F25B19/00; (IPC1-7): C07C6/06; B01D5/00
Foreign References:
| EP0343437A1 | 1989-11-29 |
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