Features
Nitrogen desorption type K-FILTER ® VOC recovery apparatus
The adsorbent K-FILTER ® and our company's proprietary nitrogen desorption method are used to recover ethyl acetate exhausted from printing plants andIPA exhausted from semiconductor plants. It can contribute to resource conservation, regulatory measures, and CO2 reduction by reusing water-solublesolvents.
In this system, VOCs in exhaust gas are alternately adsorbed and desorbed in two pairs of adsorption vessels, each containing K-FILTER ®. Uncondensed VOCcontaining nitrogen is emitted when the desorbed VOCs are collected, but nitrogen is cleaned and recycled in the ND vessel containing K-FILTER ®, so it can beprocessed at low running costs.

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Features
Nitrogen desorption type K-FILTER ® VOC recovery apparatus
This apparatus recovers organic solvents from VOC-containing gases with minimal wastewater discharge. By combining the excellent adsorption anddesorption properties of activated carbon fiber material "K-FILTER®" with our unique nitrogen desorption method, it can recover solvents with such highpurity that they can be reused, even for water-soluble solvents.Nitrogen is recycled and reused, so it can be processed at a low running cost.

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Features
Nitrogen desorption type K-FILTER ® VOC recovery device(a) Recovery of organic solvents with low water usage (minimal wastewater discharge)
By using K-FILTER® to adsorb VOCs and then desorbing and recovering them with heated nitrogen, it allows for much lower water usage compared todesorption with steam. This enables the recovery and reuse of water-soluble solvents and significant reduction in wastewater.
(2) Energy-saving operation
Nitrogen used for the desorption of VOCs is reused in a unique recycling system, so it can be treated at low running costs.
3 Excellent VOC removal performance
The excellent adsorption and desorption characteristics of K-FILTER ® and its unique nitrogen desorption method enable it to achieve higher removal andrecovery rates and lower VOC emission concentrations than granular activated carbon.
4 Recovery of high-purity organic solvents
By using high-purity, low-catalyst K-FILTER ® VOCs can be desorbed at a low temperature (approximately 120°C) and in a short time (5 to 15 minutes),
resultin in minimal decomposition or denaturation of the recovered solvent.
5 Space saving and easy maintenance
The apparatus can be installed in a lightweigt and space-saving manner due to the low adsorbent filling volume, making it suitable for height restrictions.
Furthermore, because of the fixed-bed design, there is minimal wear on the adsorbent material, resulting in very little clogging of the adsorbent.

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processing power example
Nitrogen desorption K-FILTER ® VOC recovery apparatus

Example of processing
Raw gas concentration

Treatment gas
concentration

Removal rate(ppm)

(ppm)

(%)

1000

2997

2000

5997

IPA

4000

68

98.3

ethanol

1004

1399

PGME, IPA, cyclohexane

2350

65

97

Toluene

2500

2699

Substance name

ethyl acetate and others

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Lineup
Nitrogen Desorption K-FILTER ® VOC Recovery Apparatus

Model Example

Processing
Airflow(m2/min)Dimensions (mm)LW

H

Approximate
weight (t)2RG02ND

25

3,500

7,500

5,300

62UG-4XND50

5,000

7,000

5,300

72US-4ND

100

5,500

7,500

7,000

152US-8ND

200

5,500

11,0007,000

272US-18XND

500

12,00013,0008,600

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