3DEFINITION OF THE PLANT A hydrogen peroxide plant is to be set-up at Gazaria, Munshiganj having a capacity of 100 metric ton of hydrogen per oxide (50 % w/w) per stream day, corresponding to 33,000 metric ton of hydrogen peroxide(50% w/w) per year, including all off sites, auxiliaries, utilities and supporting facilities using natural gas as feedstock and fuel.
4SPECIFICATION OF RAW MATERIALS NG from TITAS GasMethane > 96 % (V/V)Calorific Value > 1000 BtuPressure > 240 kPaTemperature about oCAirWater
6SPECIFICATION OF PRODUCT H2O2 specification:H2O2 content 50%Free acid (as H2SO4) % max.Non-volatile matter % max.Stability % min.Freezing point °CBoiling point °CDensity kg/m3
7PROCESS SELECTION By Auto-oxidation of alkylanthraquinones By Electrolysis from Ammonium Bisulfate.From Barium PeroxideBy oxidization of isopropanolAuto-oxidation of 2-ethylalkylanthraquinone is selected for this project.
8DESIGN BASIS Geological Data LocationThe site for the plant is selected on the bank of river Meghna at Baluakandi under Gazaria upzilla in Munshiganj district.Load bearing capacity: The soil has a bearing capacity of 0.38 ton/ft required piling is used.Corrosive tendency: Non Corrosive
9DESIGN BASIS (Contd.) Climatic condition Dry bulb temperature (maximum) oC (summer)Dry bulb temperature (maximum) oC (winter)Wet bulb temperature (maximum) oC (summer)Wet bulb temperature (maximum) oC (winter)
10DESIGN BASIS (Contd.) Meteorological condition Average monthly Temperature 35oC (max.)Average Temperature 30oCAverage annual rainfall mmWind flowDirection = South to NorthVelocity = 52 mile/h
11DESIGN BASIS (Contd.) Utility Electric Power Voltage 380/220 V Frequency 50 HzPhase 3 phasesCooling WaterInlet OutletTemperature < 30 oC 38 oCPressure 0.5 MPa 0.2 MPaTurbidity ≤ 50 mg/lChlorine < 5 ppmPH 6.5 – 8
12PROCESS INVOLVED Four main stages involved: Hydrogen Generation ( Reformer)HydrogenationOxidationExtraction and Purification
18EQUIPMENT LIST Natural Gas Knock Out Drum Feed Gas Compressor Desulfurization VesselWater TankBFW PumpStackHeat ExchangerWaste Heat BoilerReformed Gas CoolerRaw Gas SeparatorPressure Swing AdsorberInduced Draft FanReformer
19EQUIPMENT LIST (Contd.) Static MixerHydrogenation TowerWorking Solution PumpWorking Solution Storage TankHydrogenated Solution Storage TankHydrogenated Solution PumpHydrogenated Solution CoolerAir CompressorOxidation TowerOxidation Solution SeparatorTail Gas CondenserOxidation Solution CoolerWet Gas Separator
20EQUIPMENT LIST (Contd.) Extraction ColumnWorking Solution SeparatorRecycled Working Solution PumpExtraction Water PumpRecycled Working Solution HeaterPurification ColumnHydrogen Peroxide Storage Tank