A N 0 0123 6 200 9 Micro Mot i on Inc All righ ts reserv ed For more inform ation ww wEmers o nProcesscom s o lutions ww wmicrom otioncom Micro Motion Fork Density Meters Provide Cost Effective Solution for SO 2 Emissions Reduction BENEFITS S imple low c o s t inst allat i on reducing in strumen t ation costs I mproved quality control of lime Calcium Hydroxide optimizi ng th e desul f uriza t i o n pro c ess costs L onger product life time gi ven the rugged meter design reducing ope r at ion and m a inte nance cost s APPLICATION Fl ue gas desul f u r izat i o n FGD is a t e chn o l o gy us ed for removin g su lfur di ox id e S O 2 from the exhaust flue gase s em itted by coal or oil b u rning power p l ants The SO 2 i s c r ea te d wh en t h e power plants burn co al o r oi l t o produ c e st ea m t o powe r the steam turbines that driv e the el ec t r i c i t y gen e rat o rs Th e t a l l f l ue gas stacks of a power pl ant dis p ers e the gas emissions by diluting the poll uta n ts i n ambient air As a resul t of stringent environm ental protection regu lations regarding S O 2 emis sio n s which have been foun d t o caus e aci d ra in power plan ts are now removi ng SO 2 from the flue gases One of the most com m on m e thods used t o reduce S O 2 emissions is wet scrubbing which uses a slurry or alka li ne sorbent s u ch as li mestone lime or seawater to scrub th e gases I n an FG D sy s t e m flu e ga s no r m a l l y pa sses thr o ugh a fly as h r e moval d e vice then an SO 2 removal device W h en using the wet scrubbing meth od t h e rea c ti on of usi n g li mest one or l i me sl urr y pr oduces the re su lt a n t slu r ry ca ll ed ca l c iu m su lfa t e T h e calcium sulfate is then further o x idi z ed t o prod uce a market abl e gy psum t h ro ugh a techni que kno w n a s f o rced o x id at io n Deduster Booster Agitator Solids Removal Pump Recirc Pump Fresh W ater Absorber SO 2 Flue Gas Limestone Powder Air Limestone Powder T ower Slurry Pit Slurry Feed Pump V acuum Belt Filter Stack Gypsum Product Hydroclones Heat Exchanger Clean Flue Gas A di a g ram o f the t y pi c a l proc e s s o f an F G D s y s t e m u s ing the we t s c r u bbing me thod t o re mo v e S O 2 fr om t h e f l ue ga s e s PO WER