(19)

(11)

EP 3 221 643 A2

(12)

(88) Date of publication A3: 27.10.2016 (43) Date of publication: 27.09.2017 Bulletin 2017/39 (21) Application number: 15870609.3 (22) Date of filing: 20.11.2015

(51) International Patent Classification (IPC):  F23R 3/42(2006.01) F23R 3/00(2006.01) (86) International application number: PCT/US2015/061926 (87) International publication number: WO 2016/099805 (23.06.2016 Gazette 2016/25)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 21.11.2014 US 201414549922 (71) Applicant: Ansaldo Energia IP UK Limited London W1G 9DQ (GB)	(72) Inventors: STUTTAFORD, Peter John Jupiter, Florida 33478 (US) RIZKALLA, Hany Stuart, Florida 34997 (US) (74) Representative: Andreotti, Erika et al Studio Torta S.p.A. Via Viotti, 9 10121 Torino 10121 Torino (IT)