chen 4470 – process design practice dr. mario richard eden department of chemical engineering...
TRANSCRIPT
CHEN 4470 – Process Design Practice
Dr. Mario Richard EdenDepartment of Chemical Engineering
Auburn University
Lecture No. 2 – Contents of Reports
January 17, 2013
Comments about Reports
– 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
Progress Report 1
– 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
Progress Report 2
– 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
Progress Report 3
– 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.
Final Report
• 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.
General Comments 1:5
• 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.
General Comments 2:5
• 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.
General Comments 3:5
• 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
General Comments 4:5
• 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.)
General Comments 5:5
Remember, the weekly status meetings are for your benefit as well
as mine. I’m here to help
• 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
Other Business
Why I am Away Next Week
Lukas Plambeck EdenMy nephew and Godson
will be baptized January 27, 2013