Methane Emissions Management at TransCanada PipeLines

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Methane Emissions Management at TransCanada
PipeLines

• by Hasan Imran
• (2004 Natural Gas STAR Technology Transfer
  Workshop, Houston, Texas. Sept. 2004)

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Methane Emissions Management at TransCanada
PipeLines

• AGENDA
• TransCanada PipeLines Ltd.
• Introduction Background
• TransCanada Climate Change Strategy
• Greenhouse Gas Emissions
• Emissions Management Strategy
• TransCanadas Experience
• Control Methodologies
• Research Development
• Conclusion

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Methane Emissions Management at TransCanada
PipeLines
TransCanada PipeLines at a Glance
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Methane Emissions Management at TransCanada
PipeLines
Corporate GHG Emitters
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Climate Change Policy
Methane Emissions Management at TransCanada
PipeLines

• Climate Change issue is not going away.
• Greenhouse Gas Emissions is potential liability
  for TransCanada.
• We have a plan in place to manage climate change.
• TransCanada believes in promoting global
  solutions to this global challenge.
• TransCanada believes prudent action is required.
• TransCanada believes in a strong commitment to
  technological innovation.

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Methane Emissions Management at TransCanada
PipeLines
Climate Change Strategy
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Methane Emissions Management at TransCanada
PipeLines
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Methane Emissions Management at TransCanada
PipeLines

• 2002 vs 2003
• GHG Emissions by Type

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Methane Emissions Management at TransCanada
PipeLines
Greenhouse Gas Emissions from Pipeline Operations
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Methane Emissions Management at TransCanada
PipeLines
Methane Emissions Distribution
Methane Emissions
Greenhouse Gas Emissions
Methane Emissions
Greenhouse Gas Emissions
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Methane Emissions Management at TransCanada
PipeLines
TCPL Emissions Management System
Vented Emissions (CH4, CO2)
Combustion Emissions
- CO2 - CH4 - N2O
- CO - VOCs - NOx
Fugitive Emissions
Blowdown Emissions
- transfer compression - pipeline inspection
tools - buttering and hot tapping - stopple
plugs - repair sleeves - hot line lowering -
incineration
LDAR (leak detection repair)
Energy Efficiency and conservation
HFS (measurement)
R D
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Methane Emissions Management at TransCanada
PipeLines
Fugitive Emissions Management (LDAR vs
Measurement)

• High Flow Sampler Measurement
• - Accuracy 25
• - identification of most cost effective fixes
• Bacharach HFS - NEW

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Methane Emissions Management at TransCanada
PipeLines
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Methane Emissions Management at TransCanada
PipeLines
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Methane Emissions Management at TransCanada
PipeLines
Sample Field Measurement Data Analysis
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Methane Emissions Management at TransCanada
PipeLines
Benefit - Cost Effective Repairs
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LDAR Program Achievements
Methane Emissions Management at TransCanada
PipeLines
M
M
Bcf
Bcf
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TransCanadas Contribution to EnvironmentEmission
s saved in no. of Tree Equivalents
Methane Emissions Management at TransCanada
PipeLines

• Total Equivalent Cars taken off the road 42,330
• Total Equivalent Homes which can be heated for
  one year 3,427

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Methane Emissions Management at TransCanada
PipeLines
Blowdown Emissions Management (Control Methods
and Technologies Used)

• Scheduling Practices
• Operational Adjustments
• Transfer (Pull-down) Compressors
• Buttered Stubs
• Hot Tapping
• Sleeves
• Stopples
• Hot line lowering

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Methane Emissions Management at TransCanada
Pipelines

• Reducing Emissions by using Transfer Compressor

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Outcome from Reduction Programs

• 2003 Summary of Savings from Methane Emission
  Reduction Programs

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Savings Outcome
Methane Emissions and Savings
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Methane Emissions Management at TransCanada
PipeLines

• Research Development
• Incineration of Blowdown Gas using new Technology
• Biofilter for Meter station methane emissions
  oxidation
• Dry Gas Seal Emissions capture technology
• Incineration Methane emissions by the use of
  CH4Reactor
• Fuel Cells

R D
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Methane Emissions Management at TransCanada
PipeLines

• Technology RD at TCPL (use of incinerator for
  blowdowns)

R D

• Incineration of blowdown gas instead of
  venting (after transfer compression)
• At Caron Compressor Station, Moose Jaw, November
  2002

Emission savings of 1,100 t CO2E
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Methane Emissions Management at TransCanada
PipeLines
Biofilter Pilot Plant for Methane Emissions
Reduction
R D
Meter Station, Alberta
Research at University of Calgary
Biofilter
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Methane Emissions Management at TransCanada
PipeLines
Biofilter Pilot Plant for Methane Emissions
Reduction
R D
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Methane Emissions Management at TransCanada
PipeLines
R D

• Compressor Dry Gas Seal Emissions
• Mitigation Research Project
• Use of gas-gas ejector to recompress seal gas
  emissions
• Re-injecting to high pressure system
• Application to TransCanada Compressors would save
  
• 538 MMSCF/yr. of natural gas
• 227,000 tCO2E/yr. of greenhouse gas emissions
• Negligible operating cost

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Methane Emissions Management at TransCanada
PipeLines
Compressor Dry Gas Seal Emissions Mitigation
Research Project
R D
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Methane Emissions Management at TransCanada
PipeLines
Compressor Dry Gas Seal Emissions Mitigation
Research Project
R D
Emissions Value 0.68 M Market value of gas
3.70M _at_ 6.84/1000 ft3
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Methane Emissions Management at TransCanada
PipeLines
CONCLUSION - Cost Curve
Methane Management Programs in place
Cost to Reduce GHGs (/tonne)

GHG Emissions Reductions Required(million tonnes
CO2e)
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Methane Emissions Management at TransCanada
PipeLines
Thank you!