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  • Users: dagur777
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  1. dagur777

    Quench column bottom level cascade to top reflux

    Does anyone has experience in bottoms level cascade to top reflux in distillation column control? The current plant setup is the top reflux drum level cascade to distillate product flow. Column bottom level cascade to top reflux. I haven't seen this kind of setup. I think it can cause the column...
  2. dagur777

    analyzers on EDC and VCM purification sections

    We would like to add analyzer on top of Heads Column at EDC Purification section and analyzer on top of VCM Column at VCM Purification section to analyzer EDC and by-products such as CCl4, 1,1,2-TCE, EtCl, MtCl, etc. Any suggestion for a reliabe analyzer company (and model number) which has...
  3. dagur777

    cell starts with big numbers

    I open a excel file which cell starts with big row numbers (1013, 1014, etc.). I checked it and did make sure there is no hide cells (using unhide) or any protection on the worksheet. Could anyone tell me how to change to the normal sheet starts from A1, A2,....? A B C D...
  4. dagur777

    free excel add-in for statistical tools

    Anyone know any good statistical tools for excel add-in? Or any good website related?
  5. dagur777

    PE/PP licensors

    Does anyone have customers' information for PE/PP licensor? For example, Sinopec Yanshan PP - Mitsui CSTR reactors ???? t/yr, Shanghai Petrochemical PP uses Basell Loop Reactors, XXX t/yr etc. Any website provide this kind of information?
  6. dagur777

    How to add rows and increment averaged amount between them

    How do you write a program or VB to increase the rows? Also, any easy way to increment the average amount between them? I have attached the sample excel file. The actually data has about 1000 rows. Original Data Set (5 minutes Snap Shot) COEFF A COEFF B TIMESTAMP...
  7. dagur777

    I have posted this on Chemical Engi

    I have posted this on Chemical Engineering Process and Control Forum (new) for a while. Can anyone anwser this for me? =========================================================== I'm looking for a reliable Advanced Process Control (APC) and Real-Time Optimization (RTO) company who has more...
  8. dagur777

    Old Windows 95 Excel macro convert to new Excel 2000

    I found one spreadsheet using old Windows 95 Excel macro. I tried to run the macro, there was a run-time error Run-time error “1004” Your program contains an invalid external reference to a worksheet Verify the path, workbook, and range name or cell reference are correct, and try again Sub...
  9. dagur777

    APC and RTO company

    I¡¦m looking for a reliable Advanced Process Control (APC) and Real-Time Optimization (RTO) company who has more up-to-date technology and experience. From September 2001 ¡§Hydrocarbon Processing¡¨ magazine, there are many companies in the list Looks like Honeywell Hi-Spec Solutions, Aspen...

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