DANAOS SHIPPING CO. LTD
EXHAUST GAS CLEANING SYSTEMS Wi t h the I nter na tio na l M a ritime O rga n i z a t i o n ( I M O ) ad o p tio n o f 0 . 5 0 % gl o b a l s u lp h u r ca p f ro m 3 . 5 0 % o n the 1 s t J a n u a r y 2 0 2 0 g ive n as th e e f f e ctive da t e, 2 0 1 9 w as th e y e ar w h e n th e S h ip p ing i n du s t r y w e ig h e d th e mo s t ap p ro p riate o pt i o n s, fro m a w id e v arie ty o f o p inio n s provo k ed by th e g re a te s t re g u lato r y a nd o pera t i o n a l ch alle ng e , in o rd er to e ns u re c o m pl i a n c e and re ma in co mmercially s u s t a i n a b le , w h ile manag ing ris k s a h e ad o f t he n ew re g u latio ns ’ imp le me nta tio n. Th e l i m i t i n S u lp h u r E mis s io n C o ntro l A re as ( SE C A) u n d er M A R P O L , re ma ins u nch ang ed t o 0 . 1 0 % e f f e ctive s ince 1 J anu ar y 2 0 1 5.
Danaos R&D department, well ahead of the new global sulphur cap regulations, has studied the main streams for compliance to decide on the most appropriate approaches for operation in the view of the new IMO regulations.
S ome c oa s ta l s ta tes a n d ports h a ve impl emen ted l oc a l regul a tion s with more s trin gen t req uiremen ts th a t res tric t or c ompl etel y proh ibit th e dis c h a rge of wa s h wa ter from open - l oop s c rubbers or proh ibit th e us e of s c rubbers . On th e oth er h a n d, a c c ordin g to rec en t s tudies (ref. C E D el ft) open - l oop s c rubbers a ppea r to h a ve a min ima l effec t of s eawa ter q ua l ity in port. T h e reports wil l be pres en ted to I M O for future work a t ev a l ua tion a n d h a rmon iz a tion of rul es a n d guida n c e on th e dis c h a rge of wa s h wa ter from EGC S in to th e a q ua tic en v iron men t, in c l udin g c on dition s a n d a rea s . I n th e c on tex t of th e c on tin uous foc us on pos ition in g our fl eet, D a n a os R & D depa rtmen t, wel l a h ea d of th e n ew gl oba l s ul ph ur c a p regul a tion s , h a s s tudied durin g th e prev ious yea rs th e ma in s trea ms for c ompl ia n c e to dec ide on th e mos t a ppropria te a pproa c h es for opera tion in th e v iew of th e n ew I M O regul a tion s , wh ic h a re eith er to s witc h to a n a l tern a tive fuel or to in ves t in ex h a us t ga s c l ea n in g s ys tems for our s h ips a n d c on tin ue us in g h igh s ul ph ur fuel . T h e ex ten s ive s tudy c a rried out durin g th e prev ious yea rs on EGC S s ys tems a n d th eir opera tion , in c l udin g ris k a s s es s men t, in ves tiga ted a mon g oth ers v a rious c on tributin g fa c tors to a s uc c es s ful
A s o f M a rch 1 s t 2 0 2 0, th e car riag e o f no n co mp lia nt f u e l o il f or co mb u s tio n p u rp o s e s for p ro p u ls io n or o p eratio n o nbo a rd is ba nne d , u nle s s a ve s s e l is f itte d w ith a n E x h a u s t g a s cle aning s y s te m ( a ls o k now n as S cru b ber), e na b ling it to a ch ie ve a n e qu iv a le nt me th od o f co mp lia nce .
O pen -l o o p s cru b bers a d d s e aw ater w it h n a t u ra l l y e x is ting a lk a li to th e e x h a u st ga s , w hi c h tu r ns s u lp h u r o x id e s ( S O x ) t o su l ph ate s / s u lp h u ric acid . O p e n- lo op s c ru b b ers re tu r n w as h w a ter to th e s e a. T he di sc h a rged w a s h w ater mu s t me e t s tric t c ri t eri a , re la te d to p H, P A Hs ( P o ly cy cli c Aro m a t i c Hy d ro carbo ns ) , tu rb id ity an d n i t ra t es .
retrofit, s uc h a s c os t, s a fety/ opera tion , c ompl ex ity/ c on figura tion , a v a il a bil ity, a n d en a bl ed D a n a os to c on c l ude to th e s el ec tion of S T I K orea n ma k er a s a rel ia bl e pa rtn er for th e in s ta l l a tion of Open - l oop Ex h a us t ga s c l ea n in g s ys tems on boa rd 1 1 D a n a os ves s el s , s iz ed 6, 500, 8, 500, 9 , 6 0 0 a n d 13, 100 T EUs , durin g 2 0 1 9 a n d th e firs t q ua rters of 2 0 2 0 .
92
