Presentation on theme: "ChE 308 - Chemical Process Analysis Sessional. A hydrogen peroxide plant is to be set-up at Gazaria, Munshiganj having a capacity of 100 metric ton."— Presentation transcript:
ChE Chemical Process Analysis Sessional
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.
NG from TITAS Gas ◦ Methane > 96 % (V/V) ◦ Calorific Value> 1000 Btu ◦ Pressure> 240 kPa ◦ Temperatureabout 5-15 o C Air Water
H 2 O 2 specification: H 2 O 2 content50% Free acid (as H 2 SO 4 )0.040% max. Non-volatile matter0.080% max. Stability97.0% min. Freezing point-52.2°C Boiling point113.8°C Density1191 kg/m 3 SPECIFICATION OF PRODUCT
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.
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 2 required piling is used. Corrosive tendency: Non Corrosive
Climatic condition Dry bulb temperature (maximum) 35 o C (summer) Dry bulb temperature (maximum) 26 o C (winter) Wet bulb temperature (maximum) 29 o C (summer) Wet bulb temperature (maximum) 22 o C (winter)
Meteorological condition Average monthly Temperature 35 o C (max.) Average Temperature30 o C Average annual rainfall 2850 mm Wind flow Direction = South to North Velocity = 52 mile/h
Utility Electric Power ◦ Voltage380/220 V ◦ Frequency50 Hz ◦ Phase3 phases Cooling Water Inlet Outlet Temperature< 30 o C38 o C Pressure0.5 MPa0.2 MPa Turbidity≤ 50 mg/l Chlorine< 5 ppm P H 6.5 – 8
Four main stages involved: 1. Hydrogen Generation ( Reformer) 2. Hydrogenation 3. Oxidation 4. Extraction and Purification
A. Reformer: CH 4 +H 2 O = CO+3H 2 - Q CO + H 2 O = CO 2 +H 2 + Q B. Hydrogenation And Oxidation tower:
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
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
Extraction Column Working Solution Separator Recycled Working Solution Pump Extraction Water Pump Recycled Working Solution Heater Purification Column Hydrogen Peroxide Storage Tank