FIELD: blasting.
SUBSTANCE: invention relates to a method for joint production of isobutene and butadiene by dehydration of C4-hydrocarbons on a chromia-alumina catalyst at higher temperature with further separation of finished products of dehydration by methods of absorption-desorption and extractive rectification and release of commercial isobutene and butadiene -1,3. At the same time the method is characterized by the fact that C4-hydrocarbons are a mixture of hydrocarbons of the following composition, wt %: isobutane 15÷45, n-butane 15÷60, n-butenes 20÷45.
EFFECT: using this method makes it possible to produce isobutene and butadiene in one reactor with high yields.
1 cl, 1 tbl, 4 ex
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Authors
Dates
2012-06-10—Published
2011-06-08—Filed