METHODS OF PRODUCING C-C-OLEFINS FROM C- AND C-PARAFFINS Russian patent published in 2015 - IPC C07C2/06 C07C5/10 C07C9/22 C07C9/14 C07C15/107 C07C7/10 C07C6/04 

FIELD: chemistry.

SUBSTANCE: invention relates to versions of a method of producing C_X-C_Y-olefins, where X is at least 14 and Y is greater than X but less than or equal to 36. One of the versions of the method includes steps of: reacting material containing normal C₅- and C₆-olefins in dimerisation or oligomerisation conditions to form a dimerisation or oligomerisation product; wherein content of C₅- and C₆-olefins in the material is at least 1 wt %; dividing the dimerisation or oligomerisation product into a stream containing unreacted C₅- and C₆-paraffins, a stream containing C₁₀-C_X-1-olefins and a stream containing C_X-C_Y-olefins; and reacting at least a portion of the stream containing C₁₀-C_X-1-olefins in chain growth conditions to form a stream containing C_X-C_Y-olefins, wherein the chain growth conditions include dimerisation and oligomerisation.

EFFECT: invention enables to convert C₅- and C₆-hydrocarbons into C₁₄₊-olefins with conversion considerably greater than 30 wt %.

8 cl, 2 dwg, 1 tbl