Mobile Flaring Services

I N N O V AT I V E A N D C O S T E F F E C T I V E S E R V I C E F O R S A F E F L A R I N G O F WA S T E G A S E S

Innovative Mobile Flare

Ensures Low

Emissions

• Plant shutdown waste gas incineration• Gas flaring during well testing• Incineration of H2S or sulphur• Degassing of ship tankers, storage tanks,

or vessels• Burning of waste vapours or by-products• Degassing of landfill sites

Innovation. BJ Process and PipelineServices (BJ PPS) operates the patented Hi-Lo Variable Tip Flare System to facilitate theincineration of waste gases in a discrete andcontrolled manner. Now introduced as aself-erecting, trailer-mounted design, thisinnovative system offers a rapid solution totemporary flaring operations. A clean andefficient burn of waste gases is achieved,even if the gas flow rate continuouslychanges.

The System. The system is comprised oftwo key components: the process/controlcabin and the variable tip flare stack. Bothcomponents are configured to suit the appli-cation before mobilisation.

Gas is supplied either under pressure ordrawn from the client’s system using aunique gas blower that can evacuate tanks tolevels well below atmospheric pressure. Thesystem can burn flammable waste gasesindependently or incinerate non-flammablegases. This flexibility is accomplished byadding a fuel gas to an exposed flame.

Engineered Service. Each BJ flaring operationis engineered to meet your desired objectivesand key parameters. Should there be a lack ofsufficient fuel gas on site to mix with wastegas, for example, BJ can provide a temporaryfuel gas service using either LiquidPetroleum Gas (LPG) or Liquefied NaturalGas (LNG) to achieve required incinerationtemperatures and ensure a continuous burn.

Applications. The BJ Mobile Flare can beused for a wide variety of applications,some of which follow.

Our earth is affected continuously bywaste gas emissions. Over the pastseveral years efforts to reduce gas

emissions have become a major initiative inthe oil, petrochemical, mining, landfill andfood industries. In addition, governmentagencies worldwide have tightened andenhanced legislative controls to minimizeand regulate emissions.

BJ PPS’ innovative,new trailer-mounted,

self-erecting system offers rapid set-up

for temporary flaringoperations.

A comprehensive PLC-based control (Pro-grammable Logic Control) and operatingsystem records and monitors key charac-teristics such as flow rate, pressures, tem-peratures, and gas composition. BJ’s soft-ware provides the control process toachieve a ‘clean burn’ based on the gascharacteristics being delivered to the flarestack. The system also records importantemission data. The design of the flare stackincorporates a sophisticated variable flowtip that changes the orifice size to suit avarying gas flow rate. Its modular configu-ration allows it to be transported conve-niently to a site as a totally independenttrailer-mounted facility in the latest self-erecting design. In addition, the stack’sshrouded flame enables gas to be discrete-ly incinerated inside the stack and not vis-ible to the naked eye. BJ PPS’ system elim-inates a visible flame while significantlylowering noise levels and radiant heat incomparison to an exposed flame.

• Skid-mounted modular design for easy shipping

• Trailer-mounted, self-erectingoption for rapid site deployment

• Fast rig-up time

• Variable flow rate

• Fully Progammable Logic Controlled (PLC)

• Automatic monitoring system

• Cleaner than conventional systems

• Shrouded flame, ensuring low noise and heat radiation

• Fail-safe features and systems

• Constant display features

• Trending charactistics fortip analysis

A three-stack system will incinerate up to6,000 cubic m3/hr (3,531 scfm) cleanly andefficiently. Inlet and feed pressures are con-trolled and regulated to ensure that a con-stant clean burn is achieved.

Case Study. On short notice, a chemical plantwas required to upgrade its permanentwaste gas flare system during a shutdown.To minimize shutdown time, the plant alsowas required to remove the existing flarefrom service at the same time as plant run-down and nitrogen purging. BJ was able toengineer, prepare and mobilise a mobileflare system for plant degassing, enablingthe client’s flare system to be dismantled at

the earliest opportunity.

The BJ flare system was configured tomix three waste gas streams of butadi-ene and styrene - which were saturat-ed by a high concentration of inertnitrogen purge gas. BJ mixed two gasstreams, which were delivered to itssystem under pressure, while recover-ing another stream using an explo-sion-proof blower. To ensure a cleanburn, the gases were spiked with a

fuel gas as required. The operation lasted forthe duration of the shutdown (eight days),and the BJ system continually incinerated allwaste gases, even though the flow rate andgas concentrations varied continuously.

Achieves Clean,Efficient

Burns Even When Gas Flow Fluctuates

NOTEWORTHYADVANTAGES & BENEFITS

System Capabilities. The BJ-operated vari-able tip mobile flare system can achieveexcellent low emission results. A single-stack system can burn gas rates of up to2,000 m3/hr (1,177 scfm). The system alsocan incorporate up to three independentflare stacks - each controlled by the PLCsystem.

You Can Depend On A BJ-Operated Hi-Lo Variable Flare System ToReduce Waste Gases Below Legislative Emission Levels

Safety & Environmental Integrity. Fail safesafety control systems have been incorpo-rated into BJ’s Mobile Flare System. Theyinclude both manual and automated shut-down devices, in-line flame arrestors, andemergency ‘slam-shut’ valves on each feedline. Gas emissions are monitored and peri-odically recorded using a semicontinuousmonitoring system to ensure that the flareincinerates gases within required levels.

BJ stands ready to ensure that our compa-ny’s world class working practices areapplied at your site. BJ prepares a compre-hensive risk assessment for each applica-tion, and develops an operational proce-dure specific to each client’s application.

Mobile self-erecting flare system shown

erected on site, with integral

trailer-mounted flare control

room.

BJ Process andPipeline Services

BJ Services operates in more than 50 countries around the world. For the location nearest to you click on the global locator at

www.bjservices.com or click on the GO BJ icon.

©2004 BJ Services Company. All rights reserved.BJ-04-1064-PPS-qty-date

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Aberdeen (Scotland)Badentoy Avenue

Badentoy Park Portlethen

Aberdeen, Scotland AB12 4YBPhone: 44 1224 401 401

Fax: 44 1224 401 501

Houston, Texas (USA)4101 Oates Road (77013)

P.O. Box 23656Houston, Texas USA 77228-3656

Phone: 1 832 519 2000Fax: 1 832 519 2001

BJ PPS HEADQUARTERS AND EUROPE-AFRICA

REGIONAL OFFICE

USA/LATIN AMERICAREGIONAL OFFICE

MIDDLE EAST-ASIA PACIFICREGIONAL OFFICE

Calgary, Alberta (Canada)4839 - 90th Avenue S.E.P.O. Box 1028 Station T

Calgary, Alberta Canada T2H 2H4

Phone: 1 403 531 5300Fax: 1 403 236 8740

PIPELINE INSPECTIONSERVICES (PIS)

DIVISION OFFICE

Dubai (UAE)B-52, Oilfields Supply Center

P.O. Box 61110Jebel Ali, Dubai, UAEPhone: 971 4 883 5558

Fax: 971 4 883 8397

CANADIAN REGIONAL OFFICE

Edmonton, Alberta (Canada)9010 - 34 Street

Edmonton, AlbertaCanada T6B2V1

Phone: 1 780 465 6495Fax: 1 780 440 0539