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Process for dehumidifying moist gas mixtures

A wet gas and mixture technology, applied in gas treatment, separation methods, phosphorus organic compounds, etc., can solve disadvantages and other problems

Active Publication Date: 2017-12-22
EVONIK OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this material is unfavorable compared to aluminum for the above reasons

Method used

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  • Process for dehumidifying moist gas mixtures
  • Process for dehumidifying moist gas mixtures
  • Process for dehumidifying moist gas mixtures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0133] Inventive Examples I1 to I6 and Comparative Examples C1 and C2 were carried out. In tests C1, I1-I3, an anhydrous solution was used. In tests C2, I4-I6, aqueous solutions were used.

[0134] 1. Chemicals used

[0135] EMIM DEP (=ethylmethylimidazolium diethylphosphate) was obtained from Iolitec.

[0136] TEP (=triethyl phosphate) was obtained from Sigma Aldrich.

[0137] 2. Test procedure

[0138] 3 drops of each solution were dropped onto an aluminum plate (highest purity aluminum, purity >99.0%) with dimensions 3 cm x 7 cm and a maximum thickness of 3 mm. Contact angle determinations were performed according to SOP 1827. The results are shown in the table below.

[0139] C1 is a comparative test using pure EMIM DEP, whereas in tests I1, I2 and I3 mixtures of EMIM DEP and 10 wt%, 1 wt% and 0.1 wt% TEP respectively were analyzed (wt% values ​​are calculated based on the total weight of the mixture) .

[0140] C2 is a comparative test using a mixture of EMIM DEP ...

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Abstract

The invention relates to a process for dehumidifying a moist gas mixture. The invention further relates to an apparatus for dehumidifying a moist gas mixture and to the use of said apparatus in the process according to the invention.

Description

technical field [0001] The invention relates to a method for dehumidifying a moist gas mixture. The invention also relates to a device for dehumidifying a moist gas mixture and to the use of said device in the method according to the invention. Background technique [0002] Dehumidification of moist gas mixtures is necessary in many technical fields. [0003] For example, ventilation and air conditioning of buildings or vehicles often requires not only cooling but also dehumidification of the air, since the air to be cooled is often so humid that the temperature drops below the dew point during cooling to the desired temperature. Therefore, dehumidifying the air accounts for a large part of the electricity consumption in conventional air conditioning systems. [0004] The electricity consumption of a building's air conditioning system is reduced by dehumidifying the air by adsorbing or absorbing water with the desiccant medium and then regenerating the water-laden desiccan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/26B01D53/14B01D53/18F25B15/02
CPCB01D53/1493B01D53/18B01D53/263B01D2252/205F25B15/02B01D53/1425B01D53/265B01D53/28B01D2251/61B01D2251/80B01D2252/20473B01D2252/30B01D2257/80B01D2258/06B01D53/14C07F9/09C09K5/12F24F3/1417B01D53/22B01D53/26B01D53/268C02F1/281C08K3/32C08K2003/321
Inventor O.泽纳克B.维利王新明R.施奈德
Owner EVONIK OPERATIONS GMBH