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ChE 308 - Chemical Process Analysis Sessional
WELCOME ChE Chemical Process Analysis Sessional
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HYSYS SIMULATION PROJECT 100 MTPD HYDROGEN PEROXIDE (50%) PLANT
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DEFINITION 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.
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SPECIFICATION OF RAW MATERIALS
NG from TITAS Gas Methane > 96 % (V/V) Calorific Value > 1000 Btu Pressure > 240 kPa Temperature about oC Air Water
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SPECIFICATION OF PRODUCT
H2O2 specification: H2O2 content 50% Free acid (as H2SO4) % max. Non-volatile matter % max. Stability % min. Freezing point °C Boiling point °C Density kg/m3
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PROCESS SELECTION By Auto-oxidation of alkylanthraquinones
By Electrolysis from Ammonium Bisulfate. From Barium Peroxide By oxidization of isopropanol Auto-oxidation of 2-ethylalkylanthraquinone is selected for this project.
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DESIGN BASIS Geological Data
Location The 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
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DESIGN 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)
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DESIGN BASIS (Contd.) Meteorological condition
Average monthly Temperature 35oC (max.) Average Temperature 30oC Average annual rainfall mm Wind flow Direction = South to North Velocity = 52 mile/h
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DESIGN BASIS (Contd.) Utility Electric Power Voltage 380/220 V
Frequency 50 Hz Phase 3 phases Cooling Water Inlet Outlet Temperature < 30 oC 38 oC Pressure 0.5 MPa 0.2 MPa Turbidity ≤ 50 mg/l Chlorine < 5 ppm PH 6.5 – 8
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PROCESS INVOLVED Four main stages involved:
Hydrogen Generation ( Reformer) Hydrogenation Oxidation Extraction and Purification
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REACTIONS INVOLVED Reformer: Hydrogenation And Oxidation tower:
CH4+H2O = CO+3H2 - Q CO + H2O = CO2+H2 + Q Hydrogenation And Oxidation tower:
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PROCESS BLOCK DIAGRAM REFORMER OXYDATION TOWER EXTRACTION SEPARATOR
PRESSURE SWING ADSORBER HYDROGENATION TOWER OXYDATION TOWER EXTRACTION SEPARATOR DSV PURIFICATION H2O2 STORAGE TANK Tail Gas NG Steam Tall Gas Water WS Make Up DRYING TOWER Air WS STORAGE
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PROCESS FLOW DIAGRAM
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EQUIPMENT LIST Natural Gas Knock Out Drum Feed Gas Compressor
Desulfurization Vessel Water Tank BFW Pump Stack Heat Exchanger Waste Heat Boiler Reformed Gas Cooler Raw Gas Separator Pressure Swing Adsorber Induced Draft Fan Reformer
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EQUIPMENT LIST (Contd.)
Static Mixer Hydrogenation Tower Working Solution Pump Working Solution Storage Tank Hydrogenated Solution Storage Tank Hydrogenated Solution Pump Hydrogenated Solution Cooler Air Compressor Oxidation Tower Oxidation Solution Separator Tail Gas Condenser Oxidation Solution Cooler Wet Gas Separator
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EQUIPMENT LIST (Contd.)
Extraction Column Working Solution Separator Recycled Working Solution Pump Extraction Water Pump Recycled Working Solution Heater Purification Column Hydrogen Peroxide Storage Tank
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THANK YOU
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