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Design a counter-current heat exchanger to cool 10,000 liters per hour of cyclohexane at 110°C down to 50°C, while heating 7,500 liters per hour of water at 25°C up to 80°C. The cyclohexane will be cooled by water which enters the heat exchanger at 90°C and exits at 60°C. The overall heat transfer coefficient is expected to be 1,000 W/m2K. Determine the required heat transfer area and the pressure drop across the heat exchanger.

asked Feb 3 in Chemical engineering by Chloe9178313 (290 points)

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Design a cost-effective and environmentally sustainable process for the production of biofuels from lignocellulosic materials, integrating pre-treatment, enzymatic hydrolysis and fermentation steps, while optimizing yield, energy efficiency, and minimizing waste generation.

asked Feb 3 in Chemical engineering by WGZMargarett (430 points)

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Design a continuous stirred-tank reactor (CSTR) for the exothermic reaction of A + B → C with a rate constant of 0.05 L/mol/min. The reactor should produce a minimum of 500 g of C per minute, while maintaining a conversion of at least 90%. The feedstream of A and B is available with a flow rate of 2 L/min and an initial concentration of 1 M for both reactants. The reactor should be operated at a temperature of 50°C and a pressure of 1 atm. What should be the volume of the CSTR and the flow rate of the cooling medium used to maintain the desired temperature?

asked Feb 3 in Chemical engineering by TaniaPounds6 (390 points)

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Design a chemical reactor with a capacity of 100 liters and determine the operating conditions (temperature, pressure, and flow rate) required to achieve a 95% yield of product X in a specific reaction. The reaction rate constant is known to be 0.1/min and the initial concentration of reactant A is 2 mol/L. Use the design equation for a first-order irreversible reaction and assume a constant density of the reaction mixture.

asked Feb 3 in Chemical engineering by DaleHayden7 (250 points)

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1 answer 38 views

Design a chemical reactor to produce 500kg of ammonia per hour from hydrogen and nitrogen gases. You are given the rate equation for the reaction as follow: N2(g) + 3H2(g) → 2NH3(g) The reaction is exothermic and a temperature range of 400-500°C is recommended for optimal production rate. The pressure of the system should be between 150-200 atm. You are required to determine the required size of the reactor and the flow rates of hydrogen and nitrogen gas.

asked Feb 3 in Chemical engineering by MarcSegundo (330 points)

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Design a chemical reactor to produce 500 kg of ethylene oxide per hour from ethylene and oxygen gases. Assume the reaction occurs isothermally, and the reactor operates at 3 atm and 250°C. The conversion of ethylene to ethylene oxide is 90%, and the selectivity of ethylene oxide is 97%. You can use either a plug-flow reactor or a continuous stirred-tank reactor. Determine the volume and dimensions of the reactor, and also its cost, assuming a stainless steel construction.

asked Feb 3 in Chemical engineering by MeaganClubbe (270 points)

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1 answer 26 views

Design a chemical reactor that can produce 100 kg of ammonia per hour using the Haber Process, given the following parameters: - Temperature: 450°C- Pressure: 200 atm- Catalysts: Magnetite and Alumina- Reactants: Nitrogen and Hydrogen at a 3:1 molar ratio.

asked Feb 3 in Chemical engineering by RedaHinton7 (330 points)

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1 answer 37 views

Design a chemical reactor that can efficiently convert 100 kg/hr of propane gas to propylene gas at a temperature of 500°C and a pressure of 2 atm. The desired conversion rate is 90%, while minimizing the production of unwanted byproducts. The reactor must also be safe and economically feasible, with a maximum capital cost of $1.5 million and a minimum expected lifetime of 10 years. What type of reactor, catalyst, and operating conditions would you recommend and why?

asked Feb 3 in Chemical engineering by FCRJohnnie31 (470 points)

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1 answer 34 views

Design a chemical reactor system with a specific volume and flow rate for the production of 100 kg/hr of ammonia from hydrogen and nitrogen gases using the Haber-Bosch process. The reactor temperature should be maintained at 450°C and a pressure of 200 atm. The reactor should also have a 90% conversion rate of reactants to meet the required production rate. Determine the dimensions of the reactor and the amount of catalyst needed for this process.

asked Feb 3 in Chemical engineering by RamiroGottsc (320 points)

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1 answer 29 views

Design a chemical reactor system to produce 100 litres of ammonia per hour from hydrogen and nitrogen gases. The reaction occurs at 450°C and 200 atm pressure. The reactor should have a conversion rate of at least 95% and a selectivity of 100% towards ammonia production. The feed gases are available at a rate of 200 litres per minute each, and the reactor should operate continuously for 30 days. Also, ensure that the reactor design considers the safety precautions required for handling flammable gases and high-pressure materials. Provide a detailed technical report of your reactor design with an analysis of the efficiency, cost, and environmental impact.

asked Feb 3 in Chemical engineering by PartheniaF00 (430 points)

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1 answer 37 views

Design a chemical reactor system for the production of 500 kg/hr of methanol (CH3OH) through the reaction of carbon monoxide (CO) and hydrogen gas (H2). The reactor should operate at a pressure of 100 atm and a temperature of 300°C, and must achieve a minimum conversion rate of 80%. Determine the type of reactor needed and its dimensions, as well as the required flow rates of CO and H2 gas to meet the production target.

asked Feb 3 in Chemical engineering by GwendolynBer (330 points)

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1 answer 28 views

Design a chemical reactor for the synthesis of ammonia via the Haber process. The reactor should operate at a pressure of 200 atm and a temperature of 450°C. Assume a feed of nitrogen and hydrogen gases at a ratio of 1:3, with a flow rate of 10 moles per minute. Determine the size of the reactor and select a suitable catalyst for the reaction.

asked Feb 3 in Chemical engineering by BuckNorman8 (370 points)

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1 answer 34 views

Design a chemical reactor for the reaction A + B --> C at a rate of 2 moles/min, with a reaction temperature of 300°C and a pressure of 3 atm. The reaction is exothermic and has a heat of reaction of -200 kJ/mol. The reactants A and B are fed into the reactor at a flow rate of 1 mole/min each. Choose the appropriate reactor design and calculate the volume needed to achieve a conversion of 95%.

asked Feb 3 in Chemical engineering by MaryanneChil (430 points)

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1 answer 37 views

Design a chemical reactor for the production of ethylene oxide through the direct oxidation of ethylene. The reactor should have a production rate of 100 tons per day and maintain a constant temperature of 250°C. Assume a feed composition of 90% ethylene and 10% oxygen. The reactor should also have a conversion efficiency of at least 95%. Compute the necessary reactor volume and the optimal flow rate of ethylene and oxygen to achieve the desired production rate and conversion efficiency.

asked Feb 3 in Chemical engineering by MaryanneKuef (290 points)

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1 answer 30 views

Design a chemical reactor for the production of 500 kg/day of ethylene oxide through the oxidation of ethylene with oxygen in the presence of a silver catalyst. The reactor should achieve a conversion of 85% with a selectivity of 95% towards ethylene oxide, while operating at 3 atm and a reactor temperature range of 200-250°C. The feed stream consists of 15% ethylene, 5% oxygen, and the rest is nitrogen. Determine the appropriate reactor type, size, and operating conditions to achieve these specifications.

asked Feb 3 in Chemical engineering by TaniaPounds6 (390 points)

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1 answer 41 views

Design a chemical reactor for the production of 2000 kg of ammonia per hour from 3000 kg of nitrogen and 6000 kg of hydrogen per hour, using the Haber-Bosch process. Determine the most suitable operating conditions such as pressure, temperature, and catalyst type for maximum yield and cost-effectiveness.

asked Feb 3 in Chemical engineering by DwightSparro (590 points)

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1 answer 9 views

Design a chemical reactor for the production of 1000 kg per hour of ammonia through the Haber process, given a feedstock gas composition of nitrogen and hydrogen in a 3:1 molar ratio, and operating conditions of 450°C at 100 bar pressure. Determine the reactor size and necessary input flow rates of reactants, and identify any key design considerations that need to be taken into account.

asked Feb 3 in Chemical engineering by TajPeyton117 (450 points)

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1 answer 33 views

Design a Chemical Reactor for the Hydrogenation of Benzene to Cyclohexane:Given the reaction between benzene and hydrogen gas to produce cyclohexane (C6H6 + 3H2 -> C6H12), design a chemical reactor that can convert 900 kg/hr of benzene to cyclohexane, assuming a 90% conversion is desired. The reactor should operate at 300°C and 20 atm, and the hydrogen flow rate is limited to 3000 kg/hr. Determine the reactor type, size, and necessary parameters such as heat transfer, pressure drop, and residence time.

asked Feb 3 in Chemical engineering by MalindaLemie (330 points)

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1 answer 40 views

Design a chemical reactor for the exothermic reaction A + B -> C, given the following parameters: - The reaction takes place at a temperature of 500°C- The reaction rate constant is 0.05 L/mol/min- The feed stream contains both A and B in equal molar amounts, with a total flow rate of 100 L/min- The desired product, C, should have a concentration of at least 90% in the reactor effluent stream- The reactor should have a residence time of at least 5 minutes. Determine the type of reactor (batch, plug flow, or continuously-stirred tank) and the dimensions (volume, length, diameter) required to achieve the desired product concentration and residence time, assuming an isothermal and well-mixed reactor.

asked Feb 3 in Chemical engineering by Wendell4581 (330 points)

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1 answer 33 views

Design a chemical engineering system that can produce 500 kg of vanilla flavoring per day, using natural ingredients only. What raw materials will be needed? What is the production process involved? What safety measures should be implemented? How can sustainability be ensured in this process? Provide a detailed report on the system designed.

asked Feb 3 in Chemical engineering by AWQFrancis20 (710 points)

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