Presentation given by Dr Hannah Chalmers from University of Edinburgh giving an update on UKCCSRC Call 1 Project "Flexible CCS Network Development (FleCCSnet)" in at the UKCCSRC Biannual Meeting - CCS in the Bigger Picture - held in Cambridge on 2-3 April 2014

1. Flexible CCS Network Development
(FleCCSnet)
UKCCSRC BIANNUAL MEETING, CAMBRIDGE, 2-3 APRIL 2014

2. Overview
• Brief introduction to FleCCSnet
• Capture and storage controls on flow variation
• An invitation!

3. FleCCSnet Aims
• Produce design and operating guidelines for CCS
pipeline networks that specifically address
– networks reacting effectively to short, medium and long term
variations in the availability and flow of CO2 from capture plants
– and also responding to the constraints imposed on the system by the
ability (or otherwise) of CO2 storage facilities to accept variable flow
• Underpinning research in two work packages
– Capture and storage controls on flow variation (Edinburgh)
– Transient pipeline network analysis (Newcastle)

4. CO2 injection/storage
• EOR vs. storage
• Number of wells to handle CO2 flows
• Design pressure in wells / pipelines.
• Change in delivery pressure
• Maintenance for wells
• Flow / storage permeability
• Interim storage on storage side?
• Options for slack in the system?
CO2 sources
• Fuel, Size
• Start-up / shut –down
• Planned outages / unplanned
outages
• Capture technology
• Interim storage?
• Cluster vs. Point-to-point
• Non-power plant sources?
• Power plant place in merit order
CO2 sources
CO2 Injection/
Storage

5. Criticality of variables?
Variable Time scale Impact on change in CO2 flow
Fuel Short Low
Size Medium Medium / high
Capture technology Short / medium Low / medium
Cluster vs point-to-point Medium / long High
Industry sources? Medium? Medium / high
EOR Short / medium High
Well design Medium Unknown
Well pressure Long Unknown
Store permeability Long Potentially high
Well maintenance Short / medium High

6. Scenario Building
• Baseline: individual base load plant with CCS
– Steady state with start-up / shut-downs
– Realistic maintenance strategy
– No interim storage
• Capture variations: individual plant and/or cluster
– Power plant place in merit order, unplanned outages etc
– CO2 capture technology choice, potential interim storage
– Range of sources etc for cluster
• Injection/storage variations: design and operation
– Well design and tie-ins (existing or new?)
– Delivery pressure (short/long-term, EOR and/or storage?)
– Maintenance schedules

7. An invitation!
https://ukccsrc.ac.uk/news-events/events/ukccsrc-events
30th April 2014, Edinburgh

8. Acknowledgements
• Funding from the UK CCS Research Centre is
gratefully acknowledged
• The views expressed in this presentation are,
however, entirely the responsibility of the authors