lrgo multi-point ground flares · ensure burner cross lighting ... design of radiation fence...

Flare Systems

Technology

LRGO Multi-Point Ground Flares

©2016 John Zink Company, LLC 2 Proprietary and confidential information

Important Notice

The information contained in these materials is for informational purposes only and is provided “AS IS”, without warranties of any kind. Your use of the information contained herein is at your sole risk. We expressly disclaim any express or implied representations, warranties or guaranties, including without limitation, the implied warranties of merchantability and fitness for a particular purpose. We will have absolutely no liability (whether direct, indirect or consequential) in connection with these materials (and/or the information contained therein) including without limitation, any liability for damage to person or property. We also reserve the right to make subsequent changes to the materials without prior notice. For purposes of this notification, “We” includes John Zink Company LLC and its affiliates and their respective employees, partners, principles, agents and representatives, and any third-party providers or sources of information or data.

John Zink and INDAIR are registered trademarks of John Zink Company LLC in the US and various countries worldwide.

John Zink Hamworthy Combustion if a trademark of John Zink Company LLC.

©2016 John Zink Company, LLC 3 Proprietary and confidential information

LRGO Flare Systems Technology

►Burner Design Technology

►Burner / Row Spacing / Flame Height

Verification Techniques

►LRGO Ground Flare Experience

©2016 John Zink Company, LLC 4 Proprietary and confidential information

LRGO Ground Flares

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LRGO Ground Flare Burners

►Special tip designs to:

►Utilize pressure for smokeless combustion

►Produce stable flame at the high exit velocities

►Minimize flame height

►Minimize flame interaction

►Ensure burner cross lighting

©2016 John Zink Company, LLC 6 Proprietary and confidential information

LRGO Ground Flare Burners

►Amount of pressure at the tip is controlled

by…

►Staging of Burners

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FLOW

P

Staged Flow versus Pressure Curve

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Staging Concept

Number of Burners in

Service Gas Flow Proportional to

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Staging Concept

TYPICAL LRGO SIM PLIFIED P & ID

P/ C

PT

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LRGO Ground Flare Burners

►Our LRGO Ground Flare burner technology

has evolved over many years.

►Conventional technology included…

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Cup Burners

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Spider Burners

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LRGO Ground Flare Burners

►Next generation technology includes…

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Array of LRGO HC Burners

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Conventional Spider Burner New LRGO-HC Burner vs

Conventional Spider Burner

LRGO-HC vs Spider Burner Flame Length

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LRGO Ground Flare Burners

►Special burner designs are required for first

stage burners to provide smokeless flaring

and stiff flames at turndown operation.

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SKEC Steam Assisted Burners

►The SKEC steam

assisted burner utilizes

steam injection to

aspirate and mix air

with the low pressure

gases to produce a

smokeless, stiff flame.

©2016 John Zink Company, LLC 18 Proprietary and confidential information

Variable Slot Indair Burners

► The Variable Slot Indair® burner utilizes a spring loading mechanism to provide high turndown without any assist medium providing:

► 100% smokeless flaring with no outside utilities required (steam or air assist)

► No assist medium controls required (simple operation and no maintenance).

► Assures stable flames and high destruction efficiency (i.e. not possible to over-steam or over-aerate)

©2016 John Zink Company, LLC 19 Proprietary and confidential information

9. Wind speed and direction

10. Relative humidity

11. Atmospheric temperature

6. Row spacing

7. Burner height above grade

8. Design of radiation fence

Multiple

rows

1. Burner design

2. Gas composition

3. Gas pressure Single burner

4. Burner spacing

5. Number of burners in row Single

row

Major Variables Affecting

Flame Length

©2016 John Zink Company, LLC 20 Proprietary and confidential information

LRGO Design Verification Techniques

► Single Burner Testing (Flame Height and Stability) ►Burner Type

►Burner Drilling

►Fuel Variation

► Multi-Burner Testing ►Cross Lighting Verification

►Flame Interaction / Flame Growth

► Experience / Field Verification

► Air Flow Calculation Techniques

► Pilot Plant Testing

► CFD Analysis

©2016 John Zink Company, LLC 21 Proprietary and confidential information

Burner Testing

Conventional Spider Burner New LRGO-HC Burner vs

Conventional Spider Burner

©2016 John Zink Company, LLC 22 Proprietary and confidential information

1. Burner design

2. Fuel composition

3. Gas pressure Single burner

Major Variables Affecting Flame Length

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4. Burner spacing

5. Number of burners in row Single

row

1. Burner design

2. Fuel composition

3. Fuel pressure Single burner

Major Variables Affecting Flame Length

©2016 John Zink Company, LLC 24 Proprietary and confidential information

Burner Interaction

►Why is Burner Spacing on a Row Critical?

►Merged Flames Grow Taller

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Burner Interaction

►Why is Burner Spacing on a Row Critical?

►Cross Light Distance Must be Maintained

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Burner Interaction

►Flame Interaction / Flame Growth Verification ►Confirm Maximum Flame Length Along Row of

Burners

►Ensure No Visible Flames Above Fence

►Prevent Dangerous Radiation Exposure Outside Fence

►Cross Lighting Verification ►Ensure Entire Row of Burner Cross Lights with Single

Pilot

►Prevent Release of Unburned VOC’s

►Prevent Sudden Violent Ignition of Gas Cloud

©2016 John Zink Company, LLC 27 Proprietary and confidential information

Multi-Burner Test Facility

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Nine HC Burners, propane at 30 psig

Flame length is a function of burner spacing

©2016 John Zink Company, LLC 29 Proprietary and confidential information

LRGO Design Verification Techniques

► Single Burner Testing (Flame Height and Stability) ►Burner Type

►Burner Drilling

►Fuel Variation

► Multi-Burner Testing ►Cross Lighting Verification

►Flame Interaction / Flame Growth

► Experience / Field Verification

► Air Flow Calculation Techniques

► Pilot Plant Testing

► CFD Analysis

©2016 John Zink Company, LLC 30 Proprietary and confidential information

LRGO Design Verification Techniques

► Single Burner Testing (Flame Height and Stability) ►Burner Type

►Burner Drilling

►Fuel Variation

► Multi-Burner Testing ►Cross Lighting Verification

►Flame Interaction / Flame Growth

► Experience / Field Verification

► Air Flow Calculation Techniques

► Pilot Plant Testing

► CFD Analysis

©2016 John Zink Company, LLC 31 Proprietary and confidential information

CFD Analysis

©2016 John Zink Company, LLC 32 Proprietary and confidential information

Bench-Scale Testing - Single burner

- Single row

- Multiple rows

Full-Scale Testing - Single burner

- Single row

Semi-Empirical model based bench-

scale and full-scale test results

CFD Analysis

Semi-Empirical model based bench-

scale results, full-scale results, cold

flow experiments & CFD

Cold Flow

Experiments

Approach

©2016 John Zink Company, LLC 33 Proprietary and confidential information

LRGO Flare Systems Technology

►Burner Design Technology

►Burner / Row Spacing / Flame Height

Verification Techniques

►LRGO Ground Flare Experience

©2016 John Zink Company, LLC 34 Proprietary and confidential information

Large LRGO Flare System - Alaska

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Large Olefins LRGO Flare System

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Olefins LRGO Flare System

©2016 John Zink Company, LLC 37 Proprietary and confidential information

Refinery LRGO Flare System

©2016 John Zink Company, LLC 38 Proprietary and confidential information

Gas Plant MPGF Flare System

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LRGO Flare Systems for LNG Plants

► World Class LRGO Ground Flares

►Over 5,000 ton/hr Capacity

►Large width flare pits

►Cryogenic Staging System

► Extensive Hot Plume CFD Modeling

► Modularized Supply

► Stringent Quarantine Requirements

©2016 John Zink Company, LLC 40 Proprietary and confidential information

Any Burning Questions?

Thank You

LRGO Multi-Point Ground Flares