John Zink Carbon adsorption Vapor reCoVery systemCLEAN COMBUSTION. CLEAR SOLUTIONS.™

A GlobAl leAder in environmentAl systems

John Zink Company, LLC is a global leader in developing next-generation

products, technologies and solutions that preserve and improve air and water

quality. With our worldwide manufacturing and service capabilities, John

Zink provides petroleum and chemical terminals around the globe with a safe,

effective method to reduce emissions.

From state-of-the-art research and development through manufacturing

and commissioning services, John Zink’s engineers develop customized

solutions to help optimize your entire system to meet even the toughest

environmental regulations.

QuAlity mAnAGement

• John Zink operations meet the requirements of the internationally

recognized IsO 9001:2000 Quality Management system.

sAfety And HeAltH mAnAGement

• The company’s OHsAs 18001 certification underscores our

commitment to providing a culture of safety that focuses

on identifying and eliminating workplace hazards while

maintaining health and safety compliance.

• John Zink is a recipient of the Voluntary Protection Program

(VPP) star certification, OsHA’s most prestigious designation,

for outstanding safety and health performance.

environmentAl mAnAGement

• John Zink and its operations meet the requirements of

the internationally recognized IsO 14001 Environmental

Management system.

JoHn Zink CompAny

Pictured above, a John Zink marine vapor recovery unit located in Europe. John Zink’s VRUs are designed to meet worldwide standards such as

ASME, ANSI, DIN, ATEX, EN, NEC, IEC, and CENELEC.

John Zink’s Carbon Adsorption Vapor Recovery Units (VRUs)

safely prevent harmful volatile organic compounds (VOCs) from

being released into the atmosphere during operations that involve

the transfer of evaporative hydrocarbons.

Because John Zink’s VRUs are highly adaptable for a variety of

applications, our engineers can customize an emission control solution

that optimizes your specific system. Our VRU systems are available

with Adsorption-Absorption (ADAB™) and Adsorption-Condensation

(ADCON™) configurations, as well as varying vacuum technologies

to best suit specific facility needs.

potentiAl AppliCAtions for use of tHis system Are As follows:

• storage tank vents • Truck loading racks

• Railcar loading facilities • Marine terminals

• Process vents

CHemiCAls suitAble for vApor reCovery AppliCAtions (pArtiAl list):

• Benzene • Butane

• carbon Tetrachloride • chlorobenzene

• chloroethane • chloroform

• crude Oil • cyclohexane

• dichloroethane • diesel Fuels

• distillate Fuels • Ethanol

• Ethylbenzene • Ethyl Tert-Butyl Ether

• Gasoline • Hexane

• Hexene • Isobutane

• Jet Fuels • Methanol

• Methylene chloride • Methyl Tert-Butyl Ether

• naphtha • Pentane

• Pentene • Perchloroethylene

• Propane • Toluene

• Trichloroethane • Trichloroethylene

• Xylene

tHe world’s most AdvAnCed vApor reCovery teCHnoloGy

from JoHn Zink CompAny

The u.s. Environmental Protection Agency has recognized John Zink’s

VRu technology as being both the Best demonstrated Technology (BdT)

and Maximum Achievable control Technology (MAcT).

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John Zink’s VRUs are designed to meet the most stringent emissions

requirements worldwide. In typical installations such as truck, rail, tank

and marine loading, our VRUs achieve emission control efficiencies of 99%

or better. Most systems are designed to meet 1 – 10 milligrams of VOC

released per liter of product loaded, or 1 – 10 grams per cubic meter of vapor

vented. John Zink has designed VRUs that meet stricter emissions standards

including the TA Luft standard of 150 milligrams of VOC released per normal

cubic meter of vapor vented (approximately equal to 0.15 mg/l).

superior performAnCe

Power consumption vs. daily Loadingfor a Typical Gasoline Truck Loading Application*

Estim

ated

Pow

er c

onsu

mpt

ion

(kW

) 160

140

120

100

80

60

40

20

0

daily Product Loaded (Liters)

0 4,000,000 8,000,000 12,000,000 16,000,000

* Values are typical for systems designed for 10 g/nm3 (10 mg/l). John Zink will optimize each system based on the individual application. Power consumption may vary.

Liquid Ring Vacuum Pump - ADAB Dry Vacuum Pump - ADAB

Recovered Product for Various Loading Operations*

Reco

vere

d Pr

oduc

t (in

lite

rs p

er 1

000

liter

s lo

aded

)

2.5

2

1.5

1

0.5

0

Loading Operation Type

* Typical power consumption for Truck/Rail Vapor Balanced Loading may be found in the plot below.

Ship Loading

Barge Loading

Truck/Rail Vapor Balanced Loading

Truck/Rail Non-Vapor Balanced Loading

Gasoline Ethanol Benzene Stabilized Light North Sea Crude

John Zink has a proven track record of success with vapor recovery

technology; there are more than 2,000 John Zink® brand vapor control

systems in service in more than 40 countries.

Our Research, Development and

Test Center, located in Tulsa, Okla.,

is the launch pad for low-emission

systems that address our customers’

needs while preserving and protecting

the environment.

Our service organization is the largest in the industry. With our 24-hour

service hotline, you can depend on the kind of service that keeps your operations

running strong – around the clock, around the world.

Put our expertise to work on your vapor recovery systems and get to

know John Zink’s vapor recovery difference.

As CompAred to vApor Combustion teCHnoloGies:

• can be installed in a hazardous area

• no flame to serve as an ignition source

• Positive rate of return on investment due to value of

recovered product

• Marine loading requires no vapor conditioning

• no trade-off pollutants

• no supplemental fuel requirements

As CompAred to otHer vApor reCovery teCHnoloGies:

• Worldwide acceptance as standard for

evaporative hydrocarbon vapor control

• near ambient pressure and

temperature operation, no vapor

holder, no refrigeration

• Proven reliability

• Easy to operate and maintain

• Highest emission control efficiency

• Low capital and operating costs

• Electricity is only required utility

JoHn Zink’s vApor reCovery differenCe

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VACUUMBOOSTERBLOWER

PURGE AIR

AIR VENT TOATMOSPHERE ADSORBER

(ADSORPTION MODE)ADSORBER

(REGENERATION MODE)

ASREQUIRED

PRODUCTLOADING RACK

CONDENSATECOLLECTION

RICHABSORBENTRETURN PUMP

DRY VACUUM PUMP

PRODUCTLOADING

PUMP

STORAGE TANK

LEAN ABSORBENT SUPPLY PUMP

ABSORBER

CArbon Adsorption-Absorption proCess witH dry vACuum pump

John Zink’s ADAB vapor recovery design is suitable for a wide variety

of applications. It is most commonly used to control hydrocarbon vapor

emissions at terminals handling petroleum fuel products. John Zink’s VRUs

combine physical adsorption with absorption to recover hydrocarbon vapors

and return the recovered product to storage.

tHe use of dry vACuum pump (dvp) teCHnoloGy offers siGnifiCAnt AdvAntAGes over otHer vACuum teCHnoloGies:

• Reduced power consumption

• Ethylene glycol and associated equipment are eliminated

from system

• decreased maintenance costs

• no product contamination

• Greater flexibility with products that can be loaded

into the VRu

During adsorption, the inlet hydrocarbon vapor-air mixture to be processed flows up through the on stream adsorber vessel. In the adsorber, the activated carbon adsorbs the hydrocarbon vapor and allows clean air to vent from the bed with only minimal hydrocarbon content.

2

The VRU is equipped with two identical adsorber vessels filled with activated carbon. One adsorber is on stream receiving vapors in the adsorption mode while the other adsorber is off stream in the regeneration mode. Switching valves are provided to automatically alternate the adsorbers between adsorption and regeneration, which assures uninterrupted vapor processing capability. The VRU will automatically start when a loading operation is ongoing and shutdown in a standby mode when the operation is complete.

1

VACUUMBOOSTERBLOWER

PURGE AIR

AIR VENT TOATMOSPHERE ADSORBER

(ADSORPTION MODE)ADSORBER

(REGENERATION MODE)

ASREQUIRED

PRODUCTLOADING RACK

CONDENSATECOLLECTION

RICHABSORBENTRETURN PUMP

DRY VACUUM PUMP

PRODUCTLOADING

PUMP

STORAGE TANK

LEAN ABSORBENT SUPPLY PUMP

ABSORBER

ABSORBENT & RECOVERED PRODUCT

HYDROCARBON VAPOR

AIR

VALVE OPEN

VALVE CLOSED

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1

2

5

6

6

4

1

3

During regeneration, previously adsorbed hydrocarbon vapor is removed from the carbon and the carbon’s ability to adsorb vapor is restored. Carbon bed regeneration is accomplished with a combination of high levels of vacuum and purge air stripping. At the end of the regeneration cycle, the adsorber vessel is re-pressurized and then is placed back on stream.

3

A lean absorbent supply pump and a rich absorbent return pump are provided to circulate the required absorbent.6

A dry vacuum pump (DVP) is the source of vacuum for carbon regeneration. The DVP extracts concentrated hydrocarbon vapor from the carbon bed, and discharges directly into the recovery

device, a vertically packed absorption column. To limit the vapor temperature inside the DVP, absorbent is circulated through the outside jacket and is injected directly into the vacuum pump.

4

In the absorber vessel, the hydrocarbon vapor from the DVP flows up through packing, while a hydrocarbon liquid flows down through packing. Inside the absorber, the vapor is liquefied, and the recovered hydrocarbon is returned back to the absorbent storage tank. A small stream of air and residual vapor exits the top of the absorber and is recycled to the on stream carbon bed for re-adsorption.

5

CArbon Adsorption – Absorption proCess witH liQuid rinG vACuum pump

ABSORBENT & RECOVERED PRODUCT

HYDROCARBON VAPOR

AIR

SEAL FLUID

VALVE OPEN

VALVE CLOSED

ASREQUIRED

VACUUMBOOSTERBLOWER

PURGE AIR

AIR VENT TOATMOSPHERE ADSORBER

(ADSORPTION MODE)ADSORBER

(REGENERATION MODE)

PRODUCTLOADING RACK

CONDENSATECOLLECTION

RICHABSORBENTRETURN PUMP

SEALFLUIDPUMP

SEPARATOR

LIQUID RINGVACUUM PUMP

SEALFLUID

COOLER

PRODUCTLOADING

PUMP

STORAGE TANK

LEAN ABSORBENT SUPPLY PUMP

ABSORBER

Liquid ring VRU systems operate along the same principles as the dry

system previously described. However, this system includes a liquid ring

vacuum pump (LRVP) to regenerate the carbon beds. LRVPs are robust

and relatively inexpensive, with a proven history of successful operation.

They are available in a variety of configurations so the system can be

tailored to fit your specific needs. John Zink has made available its

own specially formulated vacuum pump seal fluid – Z-SEAL™ – for use

in this serivce.

The separator is provided to allow efficient separation between the vacuum pump’s seal fluid, hydrocarbon condensate, and the non-condensed hydrocarbon vapor. The non-condensed hydrocarbon vapor is discharged from the separator vessel and recovered by means of a packed-bed absorber column in the same manner as previously described.

2

The LRVP strips the rich hydrocarbon vapor stream from the adsorber and discharges it into a three-phase separator. Each LRVP requires a specially blended ethylene glycol-based sealing fluid to operate.

1The seal fluid is pumped from the separator through a seal fluid cooler to remove the heat of compression.

3The ADAB VRU based upon either dry vacuum pump or liquid ring vacuum pump technology may be provided with a high efficiency (HE-ADAB) vacuum system. The enhanced vacuum system consists of a rotary-lobed vacuum booster blower operating in series with the vacuum pump. The addition of the booster blower allows the carbon beds to be regenerated under a higher vacuum (lower absolute pressure) and provides significantly higher pumping capacity at high vacuums than is possible through the use of only the vacuum pump. An enhanced vacuum system more thoroughly regenerates the activated carbon and can, as a result, provide several potential benefits including use of less carbon, the achievement of lower emission levels, reduced system power requirement, and less overall capital cost.

4

4

3

12

CArbon Adsorption – Absorption proCess witH liQuid rinG vACuum pump

As an optional feature, John Zink offers a Continuous Emission

Monitoring System (CEMS) that includes an analyzer to measure

hydrocarbon content in the VRU vent stream.

The CEMS performs emission data averaging and can achieve VRU

energy savings when utilizing the CEM Start mode of operation. The carbon

beds are left on stream until their effective adsorption capacities have been

expended before regeneration occurs. Typical energy savings using this

mode of operation have ranged between 30 to 50%.

modulAr system

Continuous emission monitorinG system

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John Zink’s VRU design is

configured in modular packages to

help meet customer needs.

• convenient, flexible

equipment installation

• Fits in varied plot spaces

• Ample space for

equipment maintenance

• Greater ease of

retrofitting the system

Booster Blower Platform

Pictured above is a VRU inlet header skid, ready for shipment. All motor operated switching valves are located near grade for easier maintenance.

Vacuum Pump Skid

Regeneration Skid

John Zink introduces VaporWatch, a new vapor control remote

monitoring system.

With VaporWatch, operators can securely access real-time online

operating data directly from their desktops or from a personal computer

anywhere around the world. This remote access capability ultimately results

in more efficient equipment operation, reduced downtime for loading terminal

operations, and lower operating and maintenance costs.

An enhanced maintenance package is also available that includes a

proactive service plan that generates customized equipment performance

reports and a dedicated monitoring system for customer equipment.

The enhanced version also maintains data on the pressures, temperatures,

emissions, and other vapor control performance. Technicians can reference

these reports to help diagnose and eliminate operational difficulties, predict

equipment failures, and service equipment.

View historical data

and trends; keep

stored data for up to

10 years

Hands-on maintenance tool

to recognize problems before

they occur

Ability to monitor key system

parameters simultaneously

View real-time data with excellent

ability to observe trends

John Zink’s worldwide service organization is the largest, most technically

savvy team of its kind. Our service technicians are trained in the latest

technologies to evaluate existing systems for upgrades and retrofits, to

troubleshoot operations, and to help plan your next turnaround.

• scheduled preventative maintenance

• Emergency call-out available 24 hours a day, 7 days a week

• Equipment retrofit packages

• carbon screening, testing, and replacement services

• start-up assistance

• Installation assistance

• Operator training

• Equipment relocation

• Annual vapor control course available at the

JOHn ZInk InsTITuTEsM

Avoid loading rack downtime with John Zink’s Portable Emission Control

System (PECS®). The PECS is a self-contained, trailer-mounted vapor combustor

that ensures stable, smokeless combustion and maintains temperature control

over a wide range of vapor combustion. This cost-effective, temporary solution

helps regulate operational issues at transport loading terminals.

The PECS is equipped with a vapor blower for low-pressure applications,

anti-flashback burners, and flame and detonation arrestors. Bundle a PECS

rental with other John Zink services such as installation, start-up, on-site

operator assistance and training, or dismantling to save both time and money.

exCeptionAl serviCe eQuipment rentAls

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worldwide serviCe And support

© 2009 John Zink Company, LLC 09-4415

John Zink World Headquarters

John Zink Company, LLC 11920 East Apache Tulsa, Oklahoma 74116 UNITED STATES OF AMERICA

Tel: +1-918-234-1800 +1-800-421-9242 Fax +1-918-234-2700

u.s.A. cAnAdA

John Zink Europe Headquarters

John Zink Int. Luxembourg S.à r.l. Zone Industrielle 'Riedgen' L-3401 Dudelange LUXEMBOURG

Tel: +352-518991 Fax: +352-518611

Other:UNITED KINGDOM FRANCE ITALY SPAIN THE NETHERLANDS GERMANY INDIA

EuROPEMIddLE EAsTAFRIcA

John Zink Asia-Pacific Headquarters

John Zink Asia-Pacific, a division of Koch Asia-Pacific, Inc. 4th Floor, Takanawa Muse Building 3-14-13, Higashi-Gotanda, Shinagawa-ku, Tokyo 141-0022 JAPAN

Tel: +81-3-4332-5550 Fax: +81-3-5423-1627

Other:SINGAPORE AUSTRALIA PEOPLE'S REPUBLIC OF CHINA

AsIA-PAcIFIc

John Zink Latin America Headquarters

Koch Tecnologia Química LTDA. Rua Tanabi nr. 276 Água Branca CEP 05002-010 - São Paulo-SP BRAZIL

Tel: +55-11-3865-3571 Fax: +55-11-3871-0405

Other:ARGENTINA MEXICO

LATIn AMERIcA

www.johnzink.com vaporcontrol@johnzink.com

CLEAN COMBUSTION. CLEAR SOLUTIONS.™