Monday, December 6, 2010

Kinetics of Fluid-Fluid Reactions

Heterogeneous Fluid-Fluid reactions are carried out to achieve one of the following objective
1. To produce a particular product
2. To separate a constituent from a fluid.
Based upon fluids involved in such reaction we have:
a. Gas.liquid reaction
b. Liquid.liquid reaction
Examples of fluid fluid reactions that are aimed at production of a desired product are:
i. Pretation of chlorobenzene by reaction of gaseous chlorine with liquid benzene... Gas liquid reaction
ii. Formation of soaps by action of aqueous alkalies on fatty acids or fats... liquid liquid reaction
iii. Nitration of organic compounds with aqueous nitric acid... Liquid liquid reaction
iv. Production of ammonium nitrate by action of ammonia on aqueous nitric acid... Gas liquid reaction
Examples of fluid fluid reactions that are carried out to separate a constituent from a fluid are:
i. Nitric acid by absorption of nitric oxide in water... Gas liquid reaction
ii. Removal of CO2 from has mixture using aqueous solutions of potassium carbonate or monoethanolamine
iii. Sulphur removal from petroleum fractions by aqueous ethanolamines... Liquid liquid reaction.

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