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of materials able to resist at high pressure and Besides, Enea has developed an integrated
temperature, and also for the development of
quick plant start-up strategies. vision (figure 3) of different technologies and

applications founding foonssSil -fCuOel2s,exthpeloiPtaotwioenr.2Gas
The synergic use of

An Integrated Vision cpolannctetpetc,hnmoelothgaynwatiitohnoxayn-dcomthbeusSti-oCnO, 2canpopwlaeyr

It is worldwide accepted that increasing the an important role on both energy back-up and

share of renewables is a viable way to achieve storage. In fact, such a plant may be designed

the decarbonisation of the energy sector, but ftsloetrxaiitbmelegpyletemacnehdnntotlhaougsyhigtnoholytaccinuhtrieerevgneratlytaedaCvOaCi2lOa-fb2releecainplotauthdree-

their inherent unpredictability causes electric

grid instability. The safety and the stability of

electrical grid require a coordinated strategy of market. The Power2Gas concept can be easily

energy storage and grid backup. The exploitation integrated adopting hydrogen and/or oxygen

of tahdevapnacretidculaprropcreospseerstiefsorofpsouwpeerrcgriteicnaelraCtioOn2 through the oxy-combustion, and making easier
in
tthraenCsmOi2ssseiopnarastyisotne.mIn, order to use the current gas
industry is believed to be an emerging and the methanation process

highly promising strategy to achieve low-carbon, [11] can be used to convert the hydrogen from

compact, responsive, efficient, safe, stable and P2G in methane using the bCaOc2k-aulrpeatdhye captured.
When it is necessary to electrical
cost competitive electrical and power generation

for the 21st century while taking advantage of grid, both the methane and oxygen obtained from

the use of existing proven power generation P2G and methanation, can be used to feed S-CO2
power plants with oxy-combustion.
equipment.

In particular, Enea expresses its strong interest in Furthermore, the plant can use external heat

contributing to the development and progress of sources, i.e., it may be integrated with renewable

ruessinpgonosxiyv-ecsoemmbiu-csltoiosnedasSi-nCteOr2naglahsetautrbsoinuercceycalneds sources of energy (concentrating solar power,

geothermal) or designed for WHR applications to

implementing a highly integrated and cost effective increase efficiency. As stated in [12], supercritical

bfCreyOet2hceaanapditmulrooeafsddt-refalveteexlgiobypl.einTghteisncehinwnteoarloengsdtieaissdmvraeanqinculeyirdeddCrivOfeo2n-r lcoaorpbonrecdoiomxpidreess(Sio-nCOB2)raoytpoenratceydclein a closed-
offers the

potential of equivalent or higher cycle efficiency

the sustainability of renewable sources of energy. versus supercritical or superheated steam cycles

Fig. 3 - Vision of the role

roefacSh-iCngO2thpeowEUer plants in
2050 tar-

gets.

44 Impiantistica Italiana - Settembre-Ottobre 2015