ブックタイトルProduct catalogue for petrochemical customer Jul.2010

概要

Product catalogue for petrochemical customer Jul.2010

DesulfurizationFlue Gas Desulfurization systems can be divided into a dry system, a semi-dry system, and a wet system. Tsukishima Kikai hastechnologies, such as the pre-coated bag system for dry desulfurization, the alkali mist system for semi-dry desulfurization, and theGypsum Recovery Processgypsum recovery system, MgSo4 purge system, Na 2SO3 recovery system, Na 2SO4 recovery system, and seawater system for wetdesulfurization.Seawater ProcessTSK proposes Seawater FGD System in partnership with Fujikasui Engineering Co., Ltd.Clean GasFeaturesAbsorber■Low construction costSeawater■Low running cost■No absorbent chemical is requiredFlue Gas■Trouble-free simple construction■Stable and easy operation■No fouling trouble■Good Experience: 19 installation records in the world System flowSeawaterAirFeaturesFlue Gas■Organic acid buffering provides・High SO 2 absorbing efficiency・Stable operation even at wide range ofvariation in gas flow rate and SO 2concentrationCaCO3 Powder■Absorption at low PH condition (4-5) enables・Scaling free and plugging free operationas sulfite and carbonates are not formedFormic Acid・High stoichiometric utilization of absorbent（HCOOH）■Commercial grade gypsum is produced・Uses for plaster, board, cement etc.CaCO3 SiloAbsorberOxidation AirCa(HCOO)2+2SO2+2H2O→Ca(HSO3)2+2HCOOHCaCO3+2SO2+H2O→Ca(HSO3)2+CO2Ca(HSO3)2+O2+2H2O→CaSO4・2H2O+H2SO4Clean GasGypsumDewateringSystemDewatered Gypsum2HCOOH+CaCO3→Ca(HCOO)2+H2O+CO2H2SO4+CaCO3+H2O→CaSO4・2H2O+CO2Na?SO? Recovery ProcessMgSO? Purge ProcessFeatures■High SO2 absorbing efficiency■Pure Na 2SO4 crystals are produced■Low energy consumption due toMVR System employed for crystallizer■Scaling free crystallizerCaustic SodaAbsorberClean GasFilterCrystallizerProduct SiloFeatures■High SO2 absorbing efficiency■High operating flexibility■Low pressure drop at absorber■Scaling free system■Low investment costMg(OH) 2AbsorberClean GasFilterWaste WaterOxidation■Minimized quantity of waste water dischargeFlue GasSludgeCentrifugeFlue GasOxidationSludgeAirNa 2SO4 CrystalsAirPROCESS SELECTIONRecommended ProcessRequired SO? removal efficiencylowDry ProcessTsukishima Kikai has been addressing the treatment of SO2 in flue gas since 1960s. Thecompany has delivered desulfurization units, tailored to meet individual needs of theCustomers at diverse plants, for desulfurization treatment of flue gas such as dry type,semi-dry type and through process technologies of lime-gypsum method, sodium sulfatemethod, magnesium hydroxide method and sodium sulfite recovery method.The company has been concentrating on various flue gas treatments for a broad range ofcustomers in dealing with flue gas from heavy oil and cal-combustion boilers, glass-meltingfurnaces, rotary kilns, sulfuric acid plants and smelting furnaces.highWet systemAny by-product demanded?noAvailability of absorbentdifficultQuantity of absorbed SO?smalllargeyeseasySeasideyesnoSemi-dry ProcessNa?SO? Recovery ProcessNa?SO? Recovery ProcessGypsum Recovery ProcessNa?SO? Recovery ProcessNa?SO? Recovery ProcessGypsum Recovery ProcessMgSO? Purge ProcessSeawater ProcessGypsum Recovery ProcessDisposal of wastewaterallowedMgSO? Purge Processnot allowed1112