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# OAR Box 1781 Prepped by Ollie Stewart



### Document

Number: 

# 22 ) 11-1-1 4

Docket Number: 

# A-90-3 7

Printed 10/29/2008 10:46:19 AM Sheet 22 of 142P. 2 IVJALCOL M 

### JONE S ASSOCIATE S 2540 1 Cabo t Road , Suite 10 7 Logun a Hills

. C

A 92653 714-770-077

5 FA X 714-770-895 0



## i-M ' rTTSa n Zunic h Cimarro n Chemica l Corporatio n 140 0 Pos t Oa k Boulevard , #62 5 Houston , Texa s 7705 6 Marc h14 , 198 9

Dea r Dan :

Pursuan t to you r vequest , w e hav e mad e a sjjfttr t stud y o f th e potentia l COS t impac t whic hwoul d occu r i f th e Cimarro n Chemical, - Bac a County , Cogeneratio n Facilit y wa d require d t o mee t 7 5 pp m o r 4 2 pp o NOxlevel s b

y increasin g th

e injectio n level c o f hig hpressur e stea m int o the combustio n chamber s o f th e ga s turbin e generator s ove r th e atesr a injectio n level s require d t o achiev e 10 0 pp m NOx .
Ou r repor t i s attached . Sincerely ,

MSJ/je

Enclosur eTHE-COS T IMPAC T O f VARIOU S LEVEL S C f STEA M INJECTION

FO RNO xCONTRO L P. 3

T o examin e th e cos t impac t o f variou s level s o f stea m injectio nfo r uri

i contro l o nth e Cimarro nCogeneratio nprnfor t oi . .*•... . c s 1 Uproject , simulation s wer e performe d t o determin e th e effect s o noveral l syste m performance . It wa s assume d tha t stea m injection , adequat e t o achiev e a leve l o f 10 0 pp m NO xinth e exhaust , wa s th e baselin e fo r system

performance . Thi s woul d correspon d t o th e injectio no f abou t 442 5 lbm/h r o f 65 0 psi a stea m int o th e combustio nchambe r o f eac hcombustio nturbin e whe nth e ne t system outpu t a s a combine d cycl e i s 68,00 0 kw" . Case s wer e the nru nfor th e condition s wher e th e NO xlevel s wer e projecte dt o b e 7 5 pp m an d4 2 ppm . Th e followin g ar e variou s syste m parameter s for th e thre e conditions : 

### Paramete r Powe r Outpu t - k

u Steam Injectio n- lbm/hr Fue l Consumptio n- MBtu/h r Make-u p wate r - gp

m 10 0 pp m 7 5 pp

m 4 2 pp

m 67,92 2 8,85 0 50 3 2 1 67,93 1 13.44 2 50 9 3 8 67,91 3 41.72 8 51 9 8 7 Th e mos t strik-in

g impac t i s th e additiona l fue l cos t for th e sam e powe r output . A nincreas e infue l consumptio nrequire d t o -achieve 4 2 ppm , 1 6 M8tu/hr , i s a nadde d cos t o f $40.0 0 pe r hou r i f th e fue l i s value d at $2.50/H8tu . Inadditio nt o increase doperatin g costs , th e requiremen t t o reac hlowe r NOxlevel s woul dals o impac t th e plan t capita l cost . Th e requiremen t fo r mor e injectio nsteam

wil l requir e a nincreas e i nth e wate r treatmen t capacity , large r size dpumps , large r size dwate r an d stea m injectio nlines , and large r item s o f equipmen t suc ha s desuperheaters . fo r example , the requiremen t t o ad d anothe r 6 6 gp m o f wate r treatmen t capacit y woul dad da nestimate d $247,50 0 t o th e cos t o f th e plan t fo r wate r treatmen t equipmen t alone . Inadditio nt o th e cos t o f th e wate r treatmen t equipment , th e stea

m injectio nsystem

wil l hav e t o b e increase d i nsize . Thi s wil l requir e th e desuperheater s for th e injectio nstea m t o b e tw

o size s large r an dthe stainles s stee l pipin g t o th e steam injectio nski d t o b e doubl e th e baselin e diameter . Th e estimate dincreas e incos t for 50 0 feet o f large r stainles s stee l pip e i s abou t $10,00 0 an d th e estimate d additiona l cos t fo r large r desuperheater s i s $6,000 , base do nquotation s receive d for simila r equipment , i

naddition , .th

e carbo nstee l wate r pipin g mus t b e large r an d bigge r wate r transfe r pump s mus t be'installed .