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CHEN 4470 – Process Design Practice

Comments about Reports. CHEN 4470 – Process Design Practice Dr. Mario Richard Eden Department of Chemical Engineering Auburn University Lecture No. 2 – Contents of Reports January 17, 2013. Progress Report 1.

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CHEN 4470 – Process Design Practice

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  1. Comments about Reports CHEN 4470 – Process Design Practice Dr. Mario Richard EdenDepartment of Chemical EngineeringAuburn University Lecture No. 2 – Contents of Reports January 17, 2013

  2. Progress Report 1 • Review literature on production, market & economics of methanol, acetic acid, and FT liquids • Describe governing chemical/physical principles in each process including phase behavior • Identify the principal process units necessary to achieve the desired products • Prepare process flow diagrams for the carbon resource to fuel and/or chemicals process • Prepare detailed material balances based on flowsheets • Prepare preliminary energy balances for flowsheets • Prepare economic analyses based on the preliminary flowsheets and mass/energy balances

  3. Progress Report 2 • Use ASPEN Plus to develop improved process flowsheet(s) with refined material and energy balances and simulate the primary process equipment • Perform preliminary economic analyses of the base case design(s) • Identify and discuss recycle potentials and evaluate the effects on the process economics • Identify supply and target temperatures for the process streams and perform thermal pinch analyses to identify the potential for heat recovery and reduction in utility usage

  4. Progress Report 3 • Implement material and energy recovery strategies and optimize the design(s) • Complete the control strategy and include on process flow diagram(s) • Propose safety concept(s) including inherently safe design considerations • Complete the energy assessment(s), including thermal pinch analyses • Review literature for separation and process improvement techniques that can be used to further improve the overall process performance

  5. Final Report • Complete the economic analysis including all process options • Complete the detailed environmental, health and safety analysis of the suggested design • Report results from individual team assignment • Combine the results from all progress reports into one coherent and comprehensive report • Make sure the headings, numbering systems for figures and tables etc. are consistent. • Rearrange paragraphs if necessary to make the report as homogeneous as possible. • Remember to include EH&S sections.

  6. General Comments 1:5 • Structure and Organization • These are progress reports, i.e. they are NOT etched in stone. • Revisions can be made before submission of final report. • Mass and energy balances serve ONLY to give a qualitative idea of the orders of magnitude before starting simulations.

  7. General Comments 2:5 • Structure and Organization (Continued) • Sections may be moved around in the final report to ensure a more logical flow of information. • First progress report is intended to give a thorough introduction to the processes involved along with background information that you may have acquired. • Definitions of conversion, yield and extent of reaction are different in a lot of books. Check the definition to ensure proper use of data.

  8. General Comments 3:5 • Format and Content • Formatting is up to the individual groups. Pick a format you like and stick to it. Less work later. • Figures and tables should be presented as close as possible to where they are used in the text. • Include an executive summary or abstract highlighting the main points of the report. • Include a description of how the work was distributed within the group (for assessment purposes), i.e. who did what.

  9. General Comments 4:5 • Format and Content (Continued) • Detailed calculations of e.g. material balance should be placed in an appendix, while the solution strategy should be presented in the main body of the report. • Extensive (but not excessive) use of headings helps give overview and will assist you when moving sections around in the final report. • A frontpage is always nice 

  10. General Comments 5:5 • ASPEN • Necessary references for equipment such as scrubbers (absorbers) and different reactors. • Depending on the reaction data you have acquired several reactor alternatives are available (stoichiometric, conversion, yield distribution, rate-based, etc.) Remember, the weekly status meetings are for your benefit as well as mine. I’m here to help 

  11. Other Business • Next Lecture – January 22 • Using the Auburn University Library (bring laptops) • Andrew Wohrley • Lecture – January 24 • Gasification of Coal and Biomass Resources • Dr. Sushil Adhikari, Dept. of Biosystems Engineering • Lecture – January 29 • Introduction to Fischer-Tropsch Synthesis • Dr. Ray Xu, Dept. of Chemical Engineering • Lecture – January 31 • Overview of Mass Exchange Operations

  12. Why I am Away Next Week Lukas Plambeck Eden My nephew and Godson will be baptized January 27, 2013

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