Apr. 2024

SOLVENTCLEAN™

Overview

Factory
exhaust gas
containing VOCSOLVENTCLEAN

Cleaned air

These days, with atmospheric pollution becoming a problem of global proportions, emission regulation of VOC (1) isbeing strengthened and interest in VOC processing technologies is increasing.
Up till now, when processing exhaust gases in large air volumes containing low concentrations of VOC, large-scaleequipment has been required, greatly increasing both initial and running costs.
By using SOLVENTCLEAN, exhaust gases in large air volumes containing low concentrations of VOC, which havecaused difficulties in the past, can be concentrated into low air volumes with high concentrations and, by combining SOLVENTCLEAN with existing (oxidization method, recovery method, etc.) processing equipmentes, efficient
processing of exhaust gases containing VOC has become possible.
Note (1) VOC : volatile organic compound

VOC adsorption

VOC desorption

Cooling*‘‘TOMBO’’ is registered trademark or trademark of NICHIAS Corporation.
* Names with a TM symbol are trademarks of NICHIAS Corporation.

2

Dimension

4,800mm

Zoom-up ofhoneycomb-structured
VOC zeolite adsorbent

Image1,700mm

SOLVENTCLEAN

VOC concentration rotor

Structure

Honeycomb structure

AdsorbentHigh performance hydrophobic zeoliteStandard desorption temperature

180 – 200°C

Temperature for high temperaturedesorption function (as option)

300°C

Features1

Can provide
a low
operation cost
SOLVENTCLEAN is suitable
for a large airflow volume andlow concentration of exhausted gas removal, and can savethe operation cost for whole
VOC removal system.

5

Can provide
the continuous
removal for VOC
Since SOLVENTCLEAN uses
a continuous desorption byunique rotation technique, theremoval efficiency is relatively
stable in comparison withtraditional batch typeconcentration, and is notfluctuated.

2

Can provide
high VOC removal
efficiency

3

99% of VOC removal
efficiency can be achieved.

6

Can remove
high boilingpoint of VOC

Solventclean is suitable for alarge airflow volume and low
concentration exhausted gas
remova. It can save theoperation cost for wholesystem.

4

Can provide highconcentration ratio

Can provide
low pressure loss

Increase of VOC concentration in the exhaust gases
multiplied by 3 to 30 times is
the service available.
(Normally the concentration
limit is 1/4 of LEL [lower
explosion limit] as standard
design guideline.)

Due to the usage of honeycomb-structured adsorbent,pressure loss is low and large
airflow volume of VOC
exhausted air is removal withminimizing the increase ofoperation power in theprocess fan.

7

8

Incombustible
All raw materials for which therotor is constructed are
inorganic and the rotor is
uncombustible.

Maintenanceis easy
Since the construction of therotor is simple, maintenanceis easy.

3

Zeolite Select for Typical VOC
Rotor TypeVOC

Aromatic compounds

Ketones

EstersAlcohols

Others

HZ-AM

HZ-BM

HZ-BO

HZ-XM,XO

HZ-BX

Toluene

B

A

A

B

A

Xylene

A

C

C

A

B

Tri methyl benzene

A

D

D

A

C

Styrene

D

A

D

D

D

Acetone

C

B

B

B

B

MEK

B

A

A

A

A

MIBK

B

A

A

A

A

Cyclohexanone

A

C

A

A

B

Ethyl acetate

B

A

A

A

A

Butyl acetate

B

A

A

A

A

PGMEA

B

A

A

A

A

Methanol

C

C

C

C

C

Ethanol

C

B

A

B

B

IPA

C

B

A

B

B

Butanol

B

A

A

A

A

Naphtha (1)

B

C

C

B

B

NMP

A

B

B

B

B

DCM

D

B

C

C

C

DMSO

A

B

B

A

B

HMDS

A

D

D

A

B

Performance : A ( excellent ), B ( good ), C ( possible ), and D ( not possible )Note (1) : Boiling point less than 200°C

Basic System
To VOC processing
deviceDesorption Zone
Desorption
heaterCleaned air(released into
atmosphere)

VOC desorption and rotor
desorption
The rotor, which has adsorbed
VOC, is rotated and moved into
the desorption zone, and the VOC
are desorbed and concentrated
by hot air flow (180 – 200°C). The
concentration rate is about 3 – 30
times.

Rotate

RotateCooling Zone

VOC adsorption
The VOC laden air is cleaned
as VOC are adsorbed by thezeolite media as it passes
through the rotor.

Rotor cooling and heat desorption

4

Concentrated air(high concentration,
low air flow)
Process Zone

Process fan

In order to recover the adsorption capacity of themedia after it has been exposed to hot air insidethe desorption zone; the media enters thecooling zone where it is cooled down by process
air or fresh air. Simultaneously, the cooling air
recovers heat energy as it passes through therotor. This heated air is then used for desorption
resulting in an energy efficient system.

Desorption fan

Drive motor

te

ta
Ro

VOC concentration rotor

Purging air(room temperature)
Air containing VOCs
(low concentration, high air flow)

Sales Performance

Print Booth

OthersLiquid crystal panel(packages, film,
can manufacturing, others)(lithium ion batteries, paper manufacturing,
pharmaceutical manufacturing, others)( LCDs, OLEDs, others )OthersPrint Booth

15%

10%

Liquid crystal panel

30%

Semiconductors

20%

Paint Booth

25%

Semiconductors

Paint Booth(memory, CPUs, MPUs, others)( furniture, color steel plates,
vehicle bodies, watercraft, others )Number of supplied SOLVENTCLEAN : more than 3,000( as of Oct, 2023 )5

High Temperature Desorption System■ Features
A system that periodically conducts a “300°C desorption operation (high temperature desorption operation)” to desorb accumulated high boiling point substances and prolong the life of the rotor. The 300°C compatible sealing material is a mechanism that is
unique to Nichias.

■ Usage results
Purposes : Semiconductor and liquid crystal panel production line exhaust gases, photogravure print drying exhaust gases,
chemical production line exhaust gases, etc.

Accumulated VOC amount [wt%]

10
8
6
4
2
0
Operation
start

beforeafter

3 months later

beforeafter

5 months later

beforeafter

7 months later

beforeafter

10 months later

beforeafter

12 months later

Behavior of remaining organic matter amount reduction by periodic high temperature desorption
Measurement organization : NICHIAS*These are measured values and not guaranteed values

Precautions regarding use

This system is for eliminating organic matter that has accumulated on the concentration rotor, not for recovery of the rotor to its original state.
The necessity for a mist filter (activated carbon etc.) to be installed at the stage prior to the concentration rotor is fundamental.
If ingredients that cannot be eliminated by high temperature desorption (generation temperature of 300°C) are included, the concentration rotor does notrecover. Also, this system cannot respond to all substances with a boiling point of or below 300°C.
There are cases where this system cannot be applied, depending on conditions (such as large amounts of high boiling point materials etc.).
The desorption outlet temperature rises to about 250°C, therefore it is necessary to select ducts, sealing materials, and fans that are suitable for thattemperature.

〈During high temperature desorption〉
Cleaned air
Concentrated air

Heat
exchanger

Cleaned air

300℃

Outside air

200℃
Desorption fan

VOC concentration rotor

Concentrator

6

500℃

Heat exchanger
Process fan

Direct burner

Burner760°C

Examples of Combinations of Concentrators with Various Systems
Concentrator with oxidization system
After low concentration, high flow amount air
containing VOC is converted to high concentration,
low flow amount air by the concentrator, it isoxidation decomposed in a oxidization equipment.

Concentrationfan■ Features

Cleaned air

1. The oxidization equipment is small due to theconcentration process, reducing overall cost andspace.
2. The amount of fuel consumption of the oxidizationequipment can be reduced due to the concentration
process (the desorption heat source of the concentrator uses the oxidization exhaust gas).

■ Applicationoxidizationequipment

VOC concentration rotor
Process fan● Paint Booth● Print line local ventilation● Coating zone ventilation

Mixing chamber

Concentrator with cooling recovery systemdesorption
heaterAfter low concentration, high flow amount air
containing VOC is converted to high concentration,
low flow amount air by the concentrator, it is recovery processed by a cooling recovery equipment.

VOC concentration rotor
Desorption fan■ Features
1. It can be operated at a cooling temperature close
to room temperature.
2. It can be operated when the processing air is in low
concentrations.
3. The combination of concentration and coolingmakes purification of 90% and higher possible byconcentration recycling (using cooling recovery
alone, the exhaust concentration is several
hundreds of ppm).

ProcessfanCoolerRecovery NMP tank

■ Application

Heat exchanger● Lithium ion battery production

Concentrator with adsorption recovery system(Adsorption recovery equipment)

After low concentration, high flow amount air
containing VOC is converted to high concentration,
low flow amount air by the concentrator, it is recovery processed by an adsorption recovery equipment.

Adsorption
can A(adsorption)■ Applied solvents● Processing of exhaust gases containing chlorinatedsolvents (methylene chloride etc.)
e.g. processing of cleaning process exhaust gas● Adsorption recovery device backup (addition ofconcentrator)
e.g. post-adsorption exhaust gas cleaning process

Adsorption
can B(desorption)

Desorption heater(steam + electricity)■ Features
1. The adsorption recovery equipment is small due tothe concentration process, reducing overall costand space.
2. The efficiency of the adsorption recovery equipment
is increased due to the concentration process,enabling improvement in VOC recovery efficiency
and reduced overall energy consumption.

Cleaned air

Concentrated air

Cleaned air

Activatedcarbon fiber
Concentration
coolerDesorption fan
Purge airProcess fan
VOCconcentration rotor
Filter unit
(SOLVENTCLEAN)

Air containing
chlorinated solvent

Steam(heat is not usedin desorption)
Condenser(cold condensation of
steam and solvent)
Solvent
Water
Decanter(separates waterand solvent)7

Specifications
Concentrator with oxidization system ( concentration rotor, air seal, operating section, plenum chamber, and duct entrance )Type( SCB- )Process air flow
amount( N㎥/min ) (1)Dimensions ( mm ) (2)Length × width × height(L×W×H)

Estimatedweight( tons ) (2)

1220

〜200

2100 × 1550 × 1650

1.2

1525

180〜300

2100 × 1850 × 1950

1.5

1740

250〜400

2100 × 2050 × 2150

1.6

1940

350〜500

2100 × 2250 × 2350

1.7

2190

450〜600

2100 × 2500 × 2600

2.6

2450

550〜7502100 × 2800 × 2925

3.0

2650

650〜900

2100 × 3000 × 3125

3.5

2950

850〜1100

2100 × 3300 × 3525

4.0

3250

1000〜1300

2100 × 3600 × 3850

4.6

3550

1200〜1600

2100 × 3900 × 4150

5.2

3850

1400〜1900

2100 × 4200 × 4450

5.8

4200

1700〜2300

2100 × 4550 × 4800

7.0

4500

2000〜2500

2100 × 4850 × 5100

8.2

Note (1) : The process air flow amount and concentrated air flow amount vary dependingon the usage conditions.
Note (2) : Dimensions and weight may be changed without notice.

Solvent concentration cassette ( concentration rotor, air seal, and operating section )Type( SCC- )Process air flow
amount( N㎥/min ) (1)Dimensions ( mm ) (2)Length × width × height(L×W×H)

Estimatedweight( tons ) (2)

1220

〜200

840 × 1550 × 1650

0.8

1525

180〜300

840 × 1850 × 1950

1.0

1740

250〜400

840 × 2050 × 2150

1.2

1940

350〜500

840 × 2250 × 2350

1.3

2190

450〜600

840 × 2500 × 2600

2.0

2450

550〜750

840 × 2800 × 2925

2.4

2650

650〜900

840 × 3000 × 3125

2.8

2950

850〜1100

840 × 3300 × 3525

3.3

3250

1000〜1300

840 × 3600 × 3850

3.6

3550

1200〜1600

840 × 3900 × 4150

4.3

3850

1400〜1900

840 × 4200 × 4450

5.1

4200

1700〜2300

840 × 4550 × 4800

5.7

4500

2000〜2500

840 × 4850 × 5100

6.2

Note (1) : The process air flow amount and concentrated air flow amount vary dependingon the usage conditions.
Note (2) : Dimensions and weight may be changed without notice.

8

When using, please read the user manual thoroughly before handling.

SOLVENTCLEAN™ Inquiry Sheet
When determining the specifications of SOLVENTCLEAN, we require the items
described in the Inquiry Sheet.
Please supply as much information as possible.
Company name
Name

Department name
Phone

）

（

―

Deliverydestination company
Deliverydestination area
Purpose ofconcentration
Installation location

Fax

（

／

）

―

( e.g. Chiba, Japan; Shanghai, China, etc.)( e.g. automotive paint exhaust gas, FPD production exhaust gas, etc.)① □ Interior, □ Exterior

UtilitiesV／ ② □ Ground level, □ Rooftop

×Hz● Upstream side of SOLVENTCLEAN ( factory exhaust gas )[ Amount of air flow ]□ Nm³/min, □ Nm³/hr[ Temperature ][ Humidity ]℃DB□ %RH, □ g/kg'[ Contaminants ] ( particles )mg/Nm³, ( mist )[ VOC ingredients contained in exhaust gas ]Solvent nameConcentration(e.g.) Acetone(e.g.) 100

mg/Nm³
units: □ v-ppm, □ mg/Nm³

Solvent nameConcentration● Downstream side of SOLVENTCLEAN ① ( cleaned air )[ Concentration contained after cleaning ]or [ Cleaning efficiency ]□v-ppm or less, □mg/Nm³ or less% or more● Downstream side of SOLVENTCLEAN ② ( concentrated air )[ Concentration rate ]

times

9

Business Content

NICHIAS contributes to the Earth’s bright future
through our Insulation and Protection technologies
The Nichias Group, founded in 1896 as a pioneer in the field of thermal insulation, has expanded its rangeof activities, starting with electricity and gas, from such key industries as petroleum production and petrochemicals, chemicals, shipbuilding, steel, automobiles, construction, etc. to industrial fields such as
electronics, environment-related businesses, etc.
We will continue to contribute to the Earth’s bright future with our “insulation and protection” technology.

Industrial
Products● Sealing materials

Manufacture and sales of gaskets, packings,
rubber products, friction materials andnon-metallic flexible expansion joints● Insulation materials

Manufacture and sales of thermal insulationmaterials, hot and cold insulation materials
and fireproof materials● Fluoropolymer

Manufacture and sales of fluororesin products
and super engineering plastic products● Environment products

Manufacture and sales of honeycomb filters

Energy andIndustrial Plants● Thermal insulation &Cryogenic insulation work
● Fireproofing work
● Soundproofing work
● Sales of related materials

Advanced
Products

Insulation
andProtection
technologies

Building
Materials● Building material products

Manufacture and sales of incombustible
interior materials, and incombustible
materials and heat-insulation materials
for housing● Building materials installation work

Raised access floor work andfire-proofing covering work

10

Manufacture and sales ofsemiconductor and flat
panel display production
systems, sealing materials
for equipment, thermal
insulation materials andfluororesin products

Autoparts
Manufacture and sales ofsealing materials,
heat-protection materials,
soundproofing materials
and vibration damping
materials for automobiles

Company overview (as of March 31, 2023)

Consolidated sales
2,381

2,400

Company Name : NICHIAS Corporation
Establishment : April 9, 1896
Head Office : 1-6-1, Hatchobori, Chuo-ku, Tokyo

2,089

2,162
1,964

1,600

Capital : 12,128,352,879 yen
Number of associated employees : 6,445

1,200( x100 million yen)

● Domestic factories

Tsurumi Factory
Ohji Factory
Hashima Factory
Fukuroi Factory
Yuki Factory

1,975

2,000

2,155

Yokohama, Kanagawa Prefecture
Kitakatsuragi, Nara Prefecture
Hashima, Gifu Prefecture
Fukuroi, Shizuoka Prefecture
Shimotsuma, Ibaraki Prefecture

800

400

0

● Laboratories

Tsurumi Research Laboratory
Yokohama, Kanagawa Prefecture
Hamamatsu Research Laboratory Hamamatsu, Shizuoka Prefecture

2018

2019

Period ending Period ending
March
March

2020

2021

2022

Period ending Period ending Period ending
March
March
March

2023

Period ending
March

Network● Main domestic group companies

Sales & Construction Companies

NICHIAS CERATECH CO., LTD.

Manufacture and Sales of insulation materials and building materials

TOKYO MATERIALS CORPORATION

Sale of sealing materials and fluoropolymer products

NICHIAS KANTO SALES CORPORATION

Sale of sealing materials, insulation materials and fluoropolymer products

NISHI-NIPPON NICHIAS CORPORATION( formerly AKITSU INDUSTRY CORPORATION )Manufacture and sale of sealing materials, insulation materials
and fluoropolymer products

HAMAASU CORPORATION

Sale of sealing materials, insulation materials, fluoropolymer
products and building materials, Industrial thermal insulation
work and installation work of building materials

NIPPON THERMAL ENGINEERING CORPORATION● Main overseas group companies

Sales & Construction Companies

Factories▶Indonesia▶Indonesia

PT. NICHIAS SUNIJAYA

PT. NICHIAS ROCKWOOL INDONESIA

Sales of sealing materials, insulation materials,
fluoropolymer products, auto parts, building materials,
and Industrial thermal insulation work
▶Malaysia

NICHIAS SOUTHEAST ASIA SDN. BHD.

Sales of sealing materials, insulation materials, fluoropolymer
products, auto parts and Engineering and insulation work
▶Singapore

NICHIAS SINGAPORE PTE LTD.

Sales of sealing materials, insulation materials, Filters,
fluoropolymer products, auto parts, and building materials

Industrial thermal insulation work

▶Vietnam

NICHIAS ENGINEERING SERVICE CORPORATIONNICHIAS VIETNAM CO., LTD.

Manufacture of sealing materials, insulation, and auto parts

PT. NICHIAS METALWORKS INDONESIA

Manufacture of sealing materials and building materials▶Malaysia

NICHIAS FGS SDN. BHD.

Manufacture of sealing materials, fluoropolymer products,
auto parts and building materials

NT RUBBER-SEALS SDN. BHD.
Manufacture of sealing materials▶Vietnam

NICHIAS HAIPHONG CO., LTD.

Manufacture of sealing materials, filters,
and fluoropolymer products

Sales of sealing materials, insulation materials,
fluoropolymer products, and auto parts▶Thailand

Industrial thermal insulation work

▶Thailand

NICHIAS KYUSHU SALES CO., LTD.

NICHIAS ( THAILAND ) CO., LTD.

Manufacture and sales of auto parts

NIPPON ROCKWOOL CORPORATION

THAI NICHIAS INTERNATIONAL CO., LTD.

Industrial thermal insulation work

INOCRETE CO., LTD.

Sale of sealing materials, insulation materials and fluoropolymer products
Sales of building materials

NICHIAS CEMCRETE CORPORATION

Sales and installation work of building materials

Factories

Manufucture and sales of auto parts

Sales of sealing materials, insulation materials,
fluoropolymer products and building materials▶ChinaNICHIAS ( SHANGHAI ) TRADING CO., LTD.

NICHIAS ( THAILAND ) CO., LTD.
THAI-NICHIAS ENGINEERING CO., LTD.
Sales of insulation materials, and Engineeringand insulation work
▶ChinaSUZHOU NICHIAS INDUSTRIAL PRODUCTS CO., LTD.
Manufacture of sealing materials, fluoropolymer products
and auto parts

NICHIAS CERATECH CO., LTD.

Sales of sealing materials, insulation materials,
filters and fluoropolymer products

SUZHOU NICHIAS SEAL MATERIAL CO., LTD.

SAKAI NICHIAS CORPORATIONNICHIAS ( SHANGHAI ) TRADING CO., LTD.
GUANGZHOU BRANCHSHANGHAI XINGSHENG GASKET CO., LTD.

Manufacture and Sales of insulation materials and building materials
Manufucture of insulation materials

KOKUBU INDUSTRY CORPORATION

Sales of sealing materials, insulation materials,
filters and fluoropolymer products

Manufacture of sealing materials, insulation materials and filters
Manufacture and sales of auto parts

SUZHOU SHUANGYOU AUTOPARTS CO.,LTD.

Manufacture of sealing materials, insulation materials,
filters and auto parts

NICHIAS ( SHANGHAI ) AUTOPARTS TRADING CO., LTD.

Manufacture and sales of auto parts

TATSUTA INDUSTRY CORPORATIONSHANGHAI XINGSHENG GASKET CO., LTD.

NICHIAS INDUSTRIAL PRODUCTS PRIVATE LTD.

Manufacture of sealing materials, insulation materials,
auto parts and building materials

OHTA KASEI CORPORATION

Manufucture of insulation materials

Sales of auto parts

Manufucture and sales of auto parts

SUZHOU SHUANGYOU AUTOPARTS CO.,LTD.
Manufucture and sales of auto parts▶IndiaManufacture and Sales of sealing materials, insulation materials
and auto parts▶Czech Republic

NICHIAS MECHATECHNO CO., LTD.

▶IndiaNISHI-NIPPON NICHIAS CORPORATION

Manufacture and Sales of sealing materials, insulation materials
and auto parts▶Mexico▶Czech Republic

Manufacture and sales of auto parts

Manufacture of sealing materials and fluoropolymer products( formerly AKITSU INDUSTRY CORPORATION )Manufacture and sale of sealing materials, insulation materials
and fluoropolymer products

FUKUSHIMA NICHIAS CORPORATION

Manufacture of insulation materials, fluoropolymer products
and auto parts

KUMAMOTO NICHIAS CORPORATION
Manufacture of fluoropolymer products

METAKOTE INDUSTRY CORPORATIONNICHIAS INDUSTRIAL PRODUCTS PRIVATE LTD.

NICHIAS AUTOPARTS EUROPE a.s.

NICHIAS AUTOPARTS EUROPE a.s.
Manufacture and sales of auto parts

NAX MFG, S.A.DE C.V.

Manufacture and sales of auto parts▶MexicoNAX MFG, S.A.DE C.V.

Manufacture and sales of auto parts

Manufacture of auto parts

APJ CORPORATION

Manufacture of auto parts

N&A TECH CO.,LTD.

Manufacture of auto parts

KIMITSU ROCKWOOL CORPORATION
Manufucture of building material

11Apr. 2024

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