Enhanced Production of Lightly Branched Olefin Oligomers Through Olefin Oligomerization

    公开(公告)号:US20240239724A1

    公开(公告)日:2024-07-18

    申请号:US18558329

    申请日:2022-05-03

    IPC分类号: C07C2/12

    CPC分类号: C07C2/12 C07C2529/06

    摘要: A feed mixture comprising at least one C3 olefin and/or at least one C4 olefin may be contacted with a zeolite catalyst under oligomerization reaction conditions to form a product mixture comprising a plurality of olefin oligomers. The zeolite catalyst, optionally with one or more further modifications, may be selected for operability at high WHSV values that may produce at least C12 olefins in the product mixture having an average branching index of about 2.2 or less. Under suitable conditions, C10-C13 olefins may comprise at least about 25% of the product mixture, M based on total olefin oligomers. Percentage conversion of the at least one C3 olefin and/or at least one C4 olefin may impact the average branching index of at least C12 olefin oligomers and selectivity for C10-C13 olefin oligomers. An amount of C4 olefin in the feed mixture may produce a targeted selectivity for at least C1 olefins.

    INTEGRATED CONVERSION AND OLIGOMERIZATION OF BIO-DERIVED ALCOHOLS

    公开(公告)号:US20230027277A1

    公开(公告)日:2023-01-26

    申请号:US17852841

    申请日:2022-06-29

    摘要: Systems and methods are provided for integrated conversion of biomass to ultimately form naphtha and/or diesel boiling range products. The integrated conversion can include an initial conversion of biomass to alcohols, such as by fermentation, followed by conversion of alcohols to olefins and then olefins to naphtha, jet, and diesel boiling range compounds, with high selectivity for formation of diesel boiling range compounds. The integrated conversion process can be facilitated by using a common catalyst for both the conversion of alcohols to olefins and the conversion of olefins to naphtha and/or diesel boiling range compounds. For example, ZSM-48 (an MRE zeotype framework structure catalyst) can be used as the catalyst for both conversion of alcohols to olefins and for oligomerization of olefins with increased selectivity for formation of diesel boiling range products.