low-pressure membrane contactors for carbon …...membrane module and test system module pressure...
TRANSCRIPT
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Low-Pressure Membrane Contactors for Carbon Dioxide Capture
DE-FE0007553
−Richard Baker, Ken Chan, Brice Freeman, Don Fulton,
Pingjiao Hao, Jay Kniep, Vincent Nguyen (MTR)
−Glenn Lipscomb, Terry Lou (University of Toledo)
NETL CO2 Capture Technology Meeting Wednesday, July 10, 2013
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Membrane Technology and Research
MTR designs, manufactures, and sells membrane systems for industrial gas separations
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-70 Employees -2012 Sales: $25 million
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Project Overview
• Award name: Low-pressure Membrane Contactors for CO2 Capture • Project period: 10/1/11 to 9/30/14 • Funding: $ 3.0 million DOE; $1.0 million MTR • DOE program manager: Mike Mosser • Participants: MTR, University of Toledo • Project scope: Develop compact large membrane area (> 500 m2), low
pressure drop plate-frame sweep module for CO2 capture application • Project plan: The key project work organized by budget period is as follows:
– BP1 : Construct prototype laboratory modules (20m2), select components, develop fabrication technology.
– BP2: Scale up production to 1m x 1m pilot scale modules (100m2), demonstrate with lab test system that modules meet CO2 separation performance and pressure drop targets.
– BP3: Scale up to full scale module (> 500 m2), show modules meet all performance targets. Be ready to test at NCCC.
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A separation is performed at a minimal energy cost
The MTR Membrane Contactor
A Way of Generating an Affordable (Partial) Pressure Difference
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A Coal Power Plant
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A Membrane CO2 Pre-Concentrator
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MTR’s Membrane Solution
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500 MWe plant requires one million m2 of membrane
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The Issues and Solutions
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Membrane module area and cost are not an issue – Skid packing density – Manifolding – Footprint – A sweep process – Needs low pressure drop
Large area modules, compact skids
Needs wide, straight channels on both sides of the membrane
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Membrane Module Designs in Current Use
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Capillary Fibers Hollow Fine Fibers
Spiral-Wound Modules Plate-and-Frame Modules
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100
1,000
10,000
10 100 1,000 10,000
Membrane Area
Packing Density (m2/m3)
Average Channel Dimension (micron)
Hollow Fiber
Spiral Wound
Packing Density for Different Membrane Module Configurations
Plate and Frame
CO2 Capture Application Range
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Two Membrane Contactor Designs
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Countercurrent
Cross-flow
– Most efficient – Difficult to make
– Uses 40% more membrane area – Easier to make
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Progress to Date
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• Year 1 – Footprint:
1ft x 2 ft – Modules:
20 m2
• Year 2 – Footprint:
1m x 1m – Modules:
100 m2
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Our Concept
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A single 100 m2
module element
50 Module elements connected to make a 5000 m2 module
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Feed Direction Sweep Direction
Membrane Contactor with Vessel
Test System
Membrane Module and Test System
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Module Pressure Drop within Target Range
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0
0.5
1
1.5
2
2.5
3
3.5
4
0 20 40 60 80 100
Pressure drop (psi)
Gas flow rate (scfm)
Sweep side
Feed side
Year 2Pressure drop target
Current Polaris membrane flow range
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Partial Countercurrent Design
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Symmetrical sweep spacer
Needs 30% more membrane compared to countercurrent
Stagnant
Stagnant
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Partial Countercurrent Design
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Needs 18% more membrane compared to countercurrent
Asymmetrical sweep spacer
Stagnant
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Our Plans
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– Refine module fabrication techniques
– Improve module flow design
– Develop multi-element modules (3~5 elements)
– Test modules at NCCC (2014)
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Combination Process May Be the Way to Go
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– Double the CO2 concentration
– 50% removal required
Series Hybrid Case
Parallel Hybrid Case
– Double the CO2 concentration – Half the flow – 95% removal required