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    • 4. 发明授权
    • Isomerization of olefins with carboxylic acid
    • 烯烃与羧酸的异构化
    • US07332637B2
    • 2008-02-19
    • US11552354
    • 2006-10-24
    • Jeffery C. GeeWillie J. IsomBruce E. Kreischer
    • Jeffery C. GeeWillie J. IsomBruce E. Kreischer
    • C07C5/23C07C5/27B01J31/04
    • C07C5/2568
    • A method of modifying the activity of a solid acid catalyst by contact with a carboxylic acid is presented. The modified catalyst is exposed to a feed mixture including olefins in a reaction zone, and an effluent including an isomerized olefin product is withdrawn from the reaction zone. The isomerized olefin product includes a more random distribution of internal olefins than the olefins of the feed mixture. The feed mixture and the isomerized olefin product include linear olefins. The isomerization results in no more than about 10 weight percent additional branched, compared to the olefins of the feed mixture, among the olefins of the isomerized olefin product. The isomerized olefin product includes no more than about 20 weight percent dimer. The olefin monomers of the feed mixture and the isomerized olefin product include from about 4 to about 30 carbon atoms. The effluent includes no more than about 20 weight percent ester. The solid acid catalyst may be an acidic ion exchange resin. The feed mixture may include olefins, esters, and carboxylic acid.
    • 提出了通过与羧酸接触改性固体酸催化剂的活性的方法。 将改性的催化剂暴露于反应区中的包含烯烃的进料混合物,并且将包含异构化的烯烃产物的流出物从反应区中排出。 异构化的烯烃产物包括比进料混合物的烯烃更随机的内烯烃分布。 进料混合物和异构化的烯烃产物包括直链烯烃。 与异构化烯烃产物的烯烃中的进料混合物的烯烃相比,异构化导致不超过约10重量%的附加支化。 异构化烯烃产物包含不超过约20重量%的二聚体。 进料混合物和异构化烯烃产物的烯烃单体包括约4至约30个碳原子。 流出物包含不超过约20重量%的酯。 固体酸催化剂可以是酸性离子交换树脂。 进料混合物可以包括烯烃,酯和羧酸。