Estimate the reactor cooling requirement for a plant

Assignment Help Chemical Engineering

Reference no: EM131157596

In the acrogenic process introduced in Problem 15.1, the catalyst is packed in tubes and the reactor is cooled using a circulating molten salt. The molten salt rejects heat to boiling steam in a similar arrangement to that shown for phallic anhydride in Figure 15.25. The required gas hourly space velocity is 200 standard liters (at STP)/liter.h. Design and size a reactor to produce 20 kt/y of acrogenic.

Problem 15.1

Acrolein (H2C=CHCHO) is made by selective oxidation of propylene at 2 bar, 350 °C using a molybdenum, iron, and bismuth catalyst on a silica support. The reactor yields based on propylene are 85% acrolein, 10% acrylic acid, and 5% light by-products. The light byproducts are mostly acetaldehyde, but for the purpose of this problem it can be assumed that the yield is 85% acrolein and 15% acrylic acid. The feed to the reactor on a volume percent basis is propylene 6%, propane 28%, steam 6%, oxygen 11%, and balance nitrogen. Estimate the reactor cooling requirement for a plant that produces 20,000 metric tons per year (20 kt/y) of acrolein if the reactor is operated isothermally.

Reference no: EM131157596

Questions Cloud

Identify the audience or population : Identify the audience or population that you seek to educate about this issue: Search the Internet to find credible sites containing information about your selected topic.

Compare the power requirement of compressing the hydrogen : A two-stage centrifugal compressor will be used for both duties. Take the polytrophic efficiency for both compressors as 70%. The hydrogen supply pressure is 120 kN/m2 and the temperature 25 °C. The hydrogen chloride is cooled to 50 °C after leavi..

What is the minimum number of shares : What is the minimum number of shares you need to own to ensure that you can elect at least one director if the company has majority voting?

Calculate the pump motor rating needed : The tank is blanketed with nitrogen and the pressure above the liquid surface is held constant at 0.1 bar gauge pressure. The minimum depth of liquid in the tank is 1 m.

Estimate the reactor cooling requirement for a plant : Estimate the reactor cooling requirement for a plant that produces 20,000 metric tons per year (20 kt/y) of acrolein if the reactor is operated isothermally.

Which marketing communications strategies would you use : Which marketing communications strategies would you use and why? How would you use the VALS System to understand your targeted segment?

What is the mean hourly wages for all underemployed workers : What is the mean hourly wages for all underemployed workers? Jane holds a bachelor's degree in sociology. She works as a part-time taxi driver. This situation is an example of which of the following

What role do emotions play in consumer motivation : How would a marketer use the information from Maslow's Theory of the Hierarchy of Needs to understand the motivations that influence being a member of the bicycle club, as discussed on pages 61 and following in Graham's text? Would the work of McG..

What is the intrinsic value of this preferred stock : Federated Holdings recently issued $90 par-value preferred stock that pays a 7% dividend rate per year.- What is the intrinsic value of this preferred stock?

User Account

All Pages