Page 35 - Gi flipbook February 2018

offshore geological storage from a kind (FOAK) projects is essential to PROCESS OF CAPTURING
gas-fired power station, with the aim to identify opportunities for efficiency LEARNINGS
capture around one million tonnes of enhancements, technology For the PCCS project, the following
CO per year, over a period of up to 15 development, and optimal project process (Figure 5) was identified as
2
years, from an existing 400MW team structures and ways of working. best practice and utilised to capture
combined cycle gas turbine (CCGT) These in turn can be applied to lessons from the project:
located at SSE’s Peterhead power follow-on projects across the industry • Define: The need for capturing
station in Aberdeenshire, Scotland. SSE to realise cost reductions, and in turn lessons learned was outlined, as well
was to be responsible for the flue gas facilitate further deployment. This is as the process to do so, the
emissions from which CO was to be the case for any new technology, personnel to collate the lessons
2
captured, electricity generation including CCS, where although the from, and production of specific
provision, and supporting services, separate components of capture, interview questions.
whilst Shell was to be responsible for transport and storage have been • Collect: Capturing learnings was
CO capture, compression, conditioning, utilised across industry for many undertaken ‘post-facto’ with project
2
transport and storage facilities. years, the combined processes and team members, including the project
The project completed front end scale required for climate mitigation Knowledge Transfer Manager, who
engineering design (FEED) work in mean that costs for FOAK design, was able to provide an integrated
2015, the same year in which the construction and operation are higher perspective whereby knowledge
project was cancelled due to UK than for established technologies. transfer was integrated into the
government withdrawal of funding for Rubin et al., 2004 outlined this project itself.
1
the UK CCS commercialisation concept for technologies analogous to • Verify: All lessons captured were
competition. The project was in a CCS, including flue gas reviewed to ensure they were
position to progress to the next stage desulphurisation (FGD) for power relevant to CCS projects going
of the development process, and, plant emissions control, where capital forward, and also to identify if they
from a technical standpoint, costs for FGD technology experienced could be utilised for non-CCS capital
construction and operation was declines over time as cumulative engineering projects.
deemed feasible. In terms of capacity increased (Figure 4). The • Store: The lessons captured were
constructability and tendering, the lower costs realised were attributed collated in a database and made
project drew competitive bids, primarily to technology innovation, as available to staff for future use.
reflecting the comprehensive FEED well as process improvements, and • Disseminate: Opportunities taken to
work undertaken, and the evident subsequent increased competition disseminate lessons captured.
technical viability of the project. among vendors as deployment
Following the project cancellation, the capacity increased.
need to capture lessons from both
the FEED work and the project
development in general became
imperative, due to the impending FIGURE 2. A) Low carbon power production from natural gas with CCS; B) Low carbon
demobilisation of the project team. hydrogen production from steam methane reforming/auto thermal reforming, with CCS.
2
The PCCS project comprised CO
capture from flue gas produced by
one of the gas turbines at Peterhead
Power Station, using amine-based
technology provided by Shell Cansolv
(a wholly-owned subsidiary of Shell).
2
After capture, the CO would have
been compressed, cooled and
conditioned to meet transportation
and storage specifications. The
resulting dense-phase CO stream
2
would be transported via a new FIGURE 3. Peterhead carbon capture and FIGURE 4. Capital cost of a new wet
pipeline which would tie-in to an storage project location limestone FGD system for a standardised
existing offshore pipeline, transporting coal-fired power plant (500MWe, 3.5 per
2
the CO more than 100km off the cent sulphur coal, 90 per cent SO2 removal)
east coast of Scotland before tie-in as a function of cumulative worldwide
subsea to the existing Goldeneye capacity of FGD installations, showing
platform (Figure 3). Once at the decrease in capital cost as a function of
platform, the CO would be injected global capacity, analogous to CCS
2
more than 2km under the sea bed of
the North Sea into the depleted
Goldeneye gas reservoir for
permanent geological storage.

IMPORTANCE TO INDUSTRY OF
CAPTURING LEARNINGS
Capturing learnings from first-of-a-

35

IGEMNews_YPPC.indd 2 18/01/2018 15:44