Carbon Sequestration and CTL Technology in West Virginia West Virginia GIS Technical Center Evan...
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Transcript of Carbon Sequestration and CTL Technology in West Virginia West Virginia GIS Technical Center Evan...
Carbon Sequestration and CTL Technology in West Virginia
West Virginia GIS Technical CenterEvan Fedorko
Outline
• Fischer-Tropsch CTL• Spatial data development• Sequestration inquiry tool development• http://www.WVCarb.org• Site Rating Model development
Fischer-Tropsch CTL
• Aka, coal liquefaction, coal to liquids, CTL synfuels, etc. Two primary methods:
ONE:TWO:
Data Development
• Infrastructure Data• Sequestration Data– Source: WVGES
• Sequestration potential per unit area• Will be implemented into NatCarb.org
CTL Infrastructure Requirements
• Standard stuff: electricity, roads, coal supply, etc.
• Water, water, water! $$$ to move!• Carbon sequestration proximity. $$$ to move!• Existing pipelines.
Natural Gas Sequestration
Deep Coal Sequestration
Sequestration Per Unit Area
• Source data: shapefile polygons – blobs with a number attribute of capacity
• At a specific point…• How much carbon dioxide
can be sequestered within X distance?
• Problems!
Sequestration Per Unit Area
• To develop this tool, we must undergo raster conversion.
• Total sequestration (metric tons) must be converted to:
• Metric tons PER 90m pixel• S per 90m = sequestration/(area sq. m/8100)• 90 meter pixels result in values within ~2% of
actual.
Tool Development
• Data development has been driven by the need to answer this question:
• “How much carbon can we put in the ground within 10 miles of THIS point?”
Sequestration Explorer
Ratings Development
• Goal: To rate (1-100) sites in West Virginia for their suitability to host a CTL facility.
• Model will be scripted, repeatable, and variables can vary as necessary.
• Model is constructed around weighted distance decay functions.– Carbon sequestration decays by distance, volume
and economic value.– Infrastructure decays by distance and cost.
Ratings Development
• Rating sequestration “neighborhoods”• Option 1: given a need for a predetermined amount of sequestration, what size neighborhood do we need?• Use radius in a distance decay function• Difficult to calculate• Statistically over-values sequestration variables
Radius = ?
Radius = ?
• Option 2: given a need for a predetermined amount of sequestration (10 years of CTL production), and several neighborhood sizes (1, 5, 10, 20 miles), which sites offer the MOST sequestration in the SMALLEST neighborhood?
R = 1, 5, 10, 20 miles
Q = ?
Ratings Development
• Sequestration
• can be retrieved with an existing GIS function, neighborhood analysis, focal statistics. Calculates a sum within a neighborhood.– Somewhat resource intensive to calculate
X = cost per mileZ = oil > coal > gas
• Infrastructure
• Sequestration
X = cost per mileZ = oil > coal > gas
Ratings Development
Ratings Development
• Final ratings equation, sum of all weights:
D-R-A-F-T
Future Work
• Inclusion of a “click and rate” tool for potential CTL sites
• Model refinement• New research into distance metrics for
sequestration• “New energy economy” data clearinghouse
Summary
• We discussed:– Spatial data development– Sequestration inquiry tool development– http://www.WVCarb.org – Site Rating Model development
Questions?