BIOL 1010 Lecture Notes - Lecture 2: Process Flow Diagram, Flowchart, Azeotropic Distillation
14 Jul 2020
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Document Summary
Process design steps: process creation, feasibility study, basic engineering design, detailed engineering design, plant construction, start up, operation. Definition: systematic procedure in the creation of a chemical process. Most important step: the choice of chemical synthesis or routes to produce the desired product. Begins with: defining the problem statement, gathering information, determining all viable routes to achieve the objective (producing a desired product) Process design: a step-by-step procedure for forming preliminary database and development synthesis tree of potential flow sheets, identifying the base case with detailed process flow diagram (pfd), material and energy balance, and a list of the major equipment. Douglas 1988: selection of processing mode: batch vs. Continuous: determine the input-output structure of the process, determine the recycle structure of the process, design of the separation system, design of the heat-exchange network (process energy recovery) Heuristics: general guidelines (short-cut calculation methods) based on practical experience and/or simulation studies.
