If you are a designer, you want to produce particular product say "P" and you are having set of reactions which gives the same product "P"
A+B-------> P
C+D--------> P
E+F+G------>P
When there are number of reactions for same product, the task is to which one you will choose?
Some of the Useful hints are
1) Aim to maximize incorporation of reactant atoms into final product
Suppose product P is made of atoms like "A" "B" "C" "D", then choose reactants which contains theses atoms/ elements more
2) Choose the reactants that are as close as possible in chemical structure to final product
3)Choose reactants to minimize risk of explosions, Fires, or release of toxic materials. If use hazardous materials is unavoidable , design for minimum reactor volume.
4) Use highly-purity raw materials to avoid side reactions. Consider purifying raw material before feeding to reactor, if possible
5)Use catalyst if at all possible
6)Choose reactions that proceed simultaneously at temperature and pressure as close to ambient conditions as possible so that operating and fixed cost will be less
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By Rajendra
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