CPC C07C 1/24 (2013.01) [C07C 2/08 (2013.01); C08F 210/08 (2013.01); C10L 1/1608 (2013.01); C07C 11/10 (2013.01); C07C 2521/04 (2013.01); C07C 2529/65 (2013.01)] | 22 Claims |
1. A C5 olefin mixture containing:
(i) at least 50 wt % of an olefin mixture comprising (i-a) 2-methyl-but-2-ene, (i-b) 2-methyl-but-1-ene and (i-c) 3-methyl-but-1-ene, and
(ii) (ii-a) one C4 olefin chosen among 1-butene, 2-butene, 2-methylpropene, and/or (ii-b) one C6 olefin chosen among 1-hexene, 2-hexene, 3-hexene, 2-methyl-1-pentene, 3-methyl-1-pentene, 4-methyl-1-pentene, 2-ethyl-1-butene, 2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene, cyclohexene, 2-methyl-2-pentene, 3-methyl-2-pentene, 3,3-dimethyl-1-butene, 1-methyl-cyclopentene, 3-methyl-cyclopentene, 4-methyl-cyclopentene, methylene-cyclopentane,
the C5 olefin mixture optionally comprising (ii-c) one C15 hydrocarbon,
the C5 olefin mixture being obtained by a process comprising the steps of:
a) providing an initial composition comprising at least 20 wt % of a C5 branched alcohol based on the total weight of the initial composition, and
b1) dehydrating the initial composition and separating the obtained dehydrated composition to provide a first stream enriched in C2 olefins, a second stream enriched in C5 olefins, and a third stream containing heavier compounds, the C5 olefin mixture being recovered from the second stream enriched in C5 olefins, or
b2) separating the initial composition to provide a first stream enriched in C2 alcohols, a second stream enriched in C5 alcohols, and a third stream enriched in heavier compounds, and dehydrating the second stream enriched in C5 alcohols to obtain the C5 olefin mixture,
wherein the initial composition is obtained by fermentation of biomass feedstocks, and
wherein the initial composition comprises at least 20 wt % Cs branched alcohol, at least 1 wt % ethanol, at least 0.1 wt % n-propanol, at least 1 wt % C4 alcohols, at most 1.5 wt % esters and at least 5 wt % water, based on the total weight of the initial composition.
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