Synthesis of 2,5-dimethylhexene by isobutene dimerization with H₂S co-feeding.

ABSTRACT: This study investigates the effect of hydrogen sulfide (H₂S) co-feeding on the synthesis of 2,5-dimethyl-1-hexene, 2,5-dimethyl-2-hexene, and 2,5-dimethylhexane (2,5-DMHs), useful compounds, using the dimerization of isobutene under mild pressure conditions. The dimerization of isobutene did not proceed in the absence of H₂S, whereas the desired products of 2,5-DMHs were produced under H₂S co-feeding conditions. The effect of reactor size on the dimerization reaction was then examined, and the optimal reactor was discussed. To enhance the yield of 2,5-DMHs, we changed the reaction conditions of the temperature, molar ratio of isobutene to H₂S (iso-C₄^{[double bond, length as m-dash]}/H₂S) in the feed gas, and the tot

SUBMITTER: Watanabe R 

PROVIDER: S-EPMC10170301 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature