Abstract
Simple methods of systems approach and technical and economic analysis at the early stages of development of chemical process flow diagrams are proposed. Disadvantages are revealed in a number of commercial processes, in particular in technologies for producing pure 1-butene from butane-n-butene fractions, isoprene from isobutene-containing mixtures and formaldehyde, diisopropyl ether from propene-propane fractions, and methyl tert-butyl ether from tert-butanol and methanol. Using systems approach, new technologies are developed that make it possible to obtain the specified products at substantially lower (by a factor of 1.5–3) energy consumption and lower feedstock consumption. The developed technologies are recommended for the modernization of existing productions and the construction of new ones.
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