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Twenty years after its first                                                       In the wake of the new millennium power
application, is CCS ready for
wide deployment, realizing                                                         companies entered the field of CCS with the
hopes for becoming a major
tool in mitigation of global                                                       target of expanding the use of coal for production
warming?
                                                                                   of electricity. Coal is relatively cheap and abundant

                                                                                   reserves are available in developed countries. Its

                                                                                   combustion generates a flue gas with high content

                                                                                   loefasCtOin2,  making            capture easier and  cheaper (at
                                                                                                  terms of          $/ton) compared to  other fossil

                                                                                   fuels. Governments quickly backed this effort and

                                                                                   considerable funds were made available to speed-

The idea    opflacnatsptuwrihnegreCOfo2sfsriol mfuethlse  effluent of              up development and implementation of CCS. The
industrial                                                are burnt
                                                                                   European Union took the leadership establishing

producing energy, and store it in deep geological                                  an ambitious program for six large integrated

formations, bringing carbon back where it came                                     demonstrations        M(CWOo2 f  captured corresponding
                                                                                   to at least 150                  installed power) to be in
from, is both visionary and appealing.

Mitigation of global warming is the reason for a                                   operation by 2015. This program has however

widespread application of CCS. Available data                                      been gradually postponed through the years

clearly show that the mean temperature of the                                      and most projects have been cancelled. Several

surface of our planet has increased over the past                                  reasons contributed to this outcome, including:

100 years at an unprecedented rate, at least                                       •	 research of novel capture technologies

considering the past 450,000 years. The growing                                        was unable to achieve the expected cost

concern that this phenomenon may be caused                                             reduction. CCS remains an expensive

by the emission into the atmosphere of huge                                            technology. Even for the favorable case of

amounts of    isCOex2pgreesnseeradteind         by the combustion of                   coal, capture cost is in the ballpark of 50 $/
fossil fuels                                    the periodical reports
                                                                                       ton        ocfriCsiOs 2o; f
of the Intergovernmental Panel for Climate                                         •	  the                          western  economies  is  delaying

Change (IPCC). The latest issue (2013) states                                          adoption of stringent regulations which might

that “it is extremely likely that more than half of                                    further decrease competitiveness in the

the observed increase in global average surface                                        global market;

temperature from 1951 to 2010 was caused by                                        •	 the mechanism devised by the European

the anthropogenic increase in greenhouse gas                                           Community to fund CCS (or renewables)

concentrations …”. “Extremely likely” means a                                          demonstrations is based on the revenues

probability higher than 99%.                                                           from        the   soaflethoefseCOce2 rteifmiciastseiosnquceicrktilfyicawteenst.
                                                                                       The        value
Based on the above, implementation of CCS at

a large scale would be the only way to continue                                        below 5 €/ton of             rCaOng2,ewhhailde  a stabilization in
                                                                                       the 20-30 €/ton                                 been expected.
the use of fossil fuels in a sustainable way for our

planet. A progressive phase-out of fossil fuels                                        The total amount of money collected by this

in favor of other forms of energy (renewables or                                       mechanism makes funding of even a single

nuclear) is the only alternative.                                                      CCS demonstration difficult. The European

                                                                                       Community also requests a matching

A bit of history                                                                       contribution by the Member State in which

                                                                                       the demonstration would be constructed.

Almost 20 years have passed since Statoil first                                        As of today, only UK, among European

started   geological storage                     of    CoOf 2Sleoinpnaer,la1r6g0e      countries, has approved a National Program
scale in  the off-shore gas                     field
                                                                                       with consistent funding for CCS;

miles West of Stavanger in the North Sea. In that                                  •	 strong opposition of local communities has

pioneering period R&D activities were mainly led                                       been recorded                almost every time       EauroCpOe2.
                                                                                       storage project              was proposed in
by oil companies with the expectation that the

development of novel capture technologies would                                        This opposition is also affecting the political

result in very low costs for the application of CCS                                    level, so that eight member states have not

(less than 10 $ per ton of captured CO2).                                              accepted the European directive issued in

34 Impiantistica Italiana - Luglio-Agosto 2015
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