A process flow diagram (PFD) ... pumps, compressors, heat exchangers, separators, and other units that perform the physical and chemical transformations of the process.

Open Microsoft Word. If Word's current default page size of 8.5 by 11 inches doesn't suit your planned process flow, click the "Page Layout" tab, then click the "Size" button and choose a new size.

Existing software used to drawing the process flow diagrams (such as AutoCAD or Visio) does not have recognition and analysis function. For the images output by software, this paper describes the ...