FIELD: chemistry.
SUBSTANCE: invention relates to method of obtaining olefin, which includes the following stages: supply of flow of raw material, which contains paraffin hydrocarbon, into distillation section; supply of flow, discharged from distillation section, into reactor and interaction of flow, discharged from distillation section, in reactor with formation of olefin-containing flow, discharged from reactor; supply of raw material flow of distillation column, which communicated with and is downstream flow, discharged from reactor, into olefin distillation column; supply of flow, discharged from distillation column, into heat pump compressor; and supply of flow, discharged from heat pump compressor, into distillation section and application of heat from flow, discharged from heat pump compressor, for heating flow of distillation section, which contains paraffin hydrocarbon that has not reacted.
EFFECT: heat saving.
10 cl, 5 dwg
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