Lec#4 FLOW SHEET SYNTHESIS AND DEVELOPMENT PDF

FLOW SHEET SYNTHESIS AND DEVELOPMENT  1

complexity

 

Flowsheet: rational evaluation

Optimal design results

+   =  =       

 

Procedures of constructing flow sheet 2

1. Hierarchical method based on heuristic rules derived from past experience Excellent Excellent for  for reasonably routine chemical plants and less successful  for  for complex plant

2. Algorithmic method

Utilizes mathematical programming procedures that includes optimization technique

Hierarchical Method

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General Procedures in hierarchical methods 5

1. Process information Conduct a search of the technical and patent literature  Study market condition and pricing 

2. Input / Output (I/O) diagram  

Study all potential chemical c hemical reactions paths

Do preliminary economic analysis of each path  Eliminate those for which price of product < raw material  Eliminate those do not seem feasible