Method and apparatus for producing hydrocarbons

Method according to one of the preceding claims, wherein the steam cracking product stream (h) contains hydrocarbons with four carbon atoms, including butadiene, as well as hydrocarbons with more than four and/or less than four carbon atoms.

Apparatus (100, 200) for the production of hydrocarbons, having a catalysis unit (1) which is configured to produce a catalysis product stream (b) rich in n-butane, isobutane, 1-butene, 2-butene, isobutene and hydrocarbons with more than four and/or less than four carbon atoms, using one or more catalyst feed streams containing oxygenates and/or olefins (a), and having a steam cracking unit (2) which is configured to produce a steam cracking product stream (h), using one or more steam cracking feed streams (g, r, s), characterised by means which are configured to produce a skeletal isomerisation feed stream (f, q) poor in 1-butene, 2-butene and isobutene and containing at least isobutane, using the catalysis product stream (b), to react the isobutane therein at least predominantly by skeletal isomerisation to form n-butane, and then to use the latter at least partly as the, or one of the, steam cracking feed streams (g, r).