February 2013

COSMO ENGINEERING CO., LTD.

2

• VOCs Emission Sources

• VOCs Recovery Technologies

• Gasoline Vapor Recovery Unit

VOC Recovery Unit

• Trouble of Existing WWT

• Improvement of Existing WWT System

Waste Water Treatment Facilities

Contents

3

VOC Recovery Unit

4

10000m3/h≦700 ppmv≦

10000m3/h≦600 ppmv≦

3000m3/h≦600 ppmv ≦

5000m3/h≦400 ppmv ≦

15000m3/h≦1400 ppmv ≦

1. Painting Related Facilities(ex: Painting Booth)

3. Printing Related Facilities(ex: Gravure Printing ) 4. Chemical Product Related Factory(ex: Drier of Resin )

6. VOC Storage Related Facilities5. Industrial Cleaning Related Facilities

2. Adhesive Related Facilities

15000m3/h≦400 ppmv≦

1000KL≦60000 ppmv≦

5m3/h≦400 ppmv≦

27000m3/h≦700 ppmv≦

or

or

or

VOC Emission Souces

Painting boothexhaust

glue

Printingsection

drysection

Washingtank

drysection

blower

Glue section

(ex: Drying Facilities of Dry Laminate )

(ex : Covered Roof Tank )

http://www.jemai.or.jp/japanese/tech/voc/pdf/tebiki_all.pdf

5Application Range of VOC Treatment Technologies

500

1,000

10,000(1v%)

100,000(10v%)

1,000,000(100v%)

1 10 100 1,000 10,000

Flow Rate ,Nm3/min

Co

nce

ntr

atio

n,p

pm

v

PSA TSA

Absorption Direct Oxidation

Catalytic Oxidation

Emission Range from Loading Facilities

Combustion Method- Higher Operation Cost, Lower Initial CostRecovery Method – Lower Operation Cost, Higher Initial Cost

6PSA and Absorption

Cooler

Purge Gas

Vacuum Pump

Recovery Pump

Clean Air

（Desorption）（Adsorption）

RecoveryTower

Circulating Gasoline Vapor

Gasoline

MG RichVapor

MG Vapor

Adsorption Desorption Absorption

Zeolite orSilica gel

【Adsorption】 Adsorb MG vapor from vent gas to adsorbent

【Desorption】 Regenerate the adsorbent by purge air under vacuum condition (5-100torr)

【Absorption】 Scrub MG vapor from purge gas by gasoline

PSA Adsorbers

7VOC Recovery Unit

Target : Gasoline VaporLoading Arms : 12Capacity : 300Nm3/hRecovery rate : 95%

Operation

2004

Design Condition

CEC’s Scope of Work : Basic Design & EP

8

Waste water treatment Facilities

9Problems of Existing WWT System

Evaporation pond was covered with oily water-Restricted Evaporation-Degraded Work Environment-Fire Risk

10

PlantWastewater

Slop Oil Tanks

Air

Water

CoagulantWater

Equalization Basin

Desalter Water

Oil

M

DAF Aeration Basins

Clarifier

Sludge Centrifuge

Sludge hopper

Water

Sand Filters

Crude Oil Tanks

Oil

Wastewater

Oil

Evaporation Pond

Treated water to River / Sea

Crude Oil Tanks Drain Pit

API

API

Coagulant

Oil Sludge

Refinery API SeparatorDiversion Pit

Sludge Receiving Pond

Existing Flow Diagram of WWT System

Equipment Break Down- Insufficient Oil Separation

11Improvement of WWT System

PlantWastewater

Slop Oil Tanks

Air

Water

CoagulantWater

Equalization Basin

Desalter Water

Oil

M

DAF

Clarifier

Sludge Centrifuge

Sludge hopper

Water

Sand Filters

Crude Oil Tanks

Oil

Wastewater

Oil

Evaporation Pond

Treated water to River / Sea

Crude Oil Tanks Drain Pit

API

API

Coagulant

Oil Sludge

Refinery API SeparatorDiversion Pit

Sludge Receiving Pond

Renew Oil Skimmer

Replace Sludge Centrifuge

Broken Equipment was Replaced to High Reliability Equipment

Aeration Basins

12

Evaporation Pond Sludge Receiving Pond

Coagulant

WaterTo WWT

Sludge

New Decanter

Air and Steam

To Incinerator

Evaporation Pond Sludge Recovery PlanEvaporation Pond Sludge Recovery Plan

1 Transfer Oily Water in Evaporation Pond to Sludge Receiving Pondby Vacuum Track

2 Mix Oily Water by Air and Steam3 Separate Sludge and Waste Water by the Decanter4 Retreat Separated Waste Water by WWT5 Burn Sludge by Incinerator

13Evaporation Pond After WWT IntegratedEvaporation Pond After WWT Integrated

…2 years after system Improvement

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• Introduce VOCs Recovery Technologies

• Introduce case examples of VOCsRecovery Unit in Middle East Refinery

VOC Recovery Unit

• Introduce case that solved the existingWWT problems in collaboration with thecounterpart

Waste Water Treatment

ConclusionsConclusions

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Thank you for your attention

COSMO ENGINEERING CO.,LTD.(CEC) is one of themajor companies of COSMO OIL GROUP

Contact number : +81-3-5462-0166

E-mail address :t_morita@cosmoeng.co.jp

Advisory section : Environment & New EnergyTechnology Development Dept.