ChE 308 - Chemical Process Analysis Sessional WELCOME ChE 308 - Chemical Process Analysis Sessional

HYSYS SIMULATION PROJECT 100 MTPD HYDROGEN PEROXIDE (50%) PLANT

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.

SPECIFICATION OF RAW MATERIALS NG from TITAS Gas Methane > 96 % (V/V) Calorific Value > 1000 Btu Pressure > 240 kPa Temperature about 5-15 oC Air Water

SPECIFICATION OF PRODUCT H2O2 specification: H2O2 content 50% Free acid (as H2SO4) 0.040% max. Non-volatile matter 0.080% max. Stability 97.0% min. Freezing point -52.2°C Boiling point 113.8°C Density 1191 kg/m3

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.

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/ft2 required piling is used. Corrosive tendency: Non Corrosive

DESIGN BASIS (Contd.) Climatic condition Dry bulb temperature (maximum) 35 oC (summer) Dry bulb temperature (maximum) 26 oC (winter) Wet bulb temperature (maximum) 29 oC (summer) Wet bulb temperature (maximum) 22 oC (winter)

DESIGN BASIS (Contd.) Meteorological condition Average monthly Temperature 35oC (max.) Average Temperature 30oC Average annual rainfall 2850 mm Wind flow Direction = South to North Velocity = 52 mile/h

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

PROCESS INVOLVED Four main stages involved: Hydrogen Generation ( Reformer) Hydrogenation Oxidation Extraction and Purification

REACTIONS INVOLVED Reformer: Hydrogenation And Oxidation tower: CH4+H2O = CO+3H2 - Q CO + H2O = CO2+H2 + Q Hydrogenation And Oxidation tower:

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

PROCESS FLOW DIAGRAM

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

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

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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