Invention Grant
US07790943B2 Integrated process for removing benzene from gasoline and producing cyclohexane 有权
从汽油中除去苯并生产环己烷的综合工艺

Integrated process for removing benzene from gasoline and producing cyclohexane
Abstract:
An integrated, continuous process for transforming feedstock, e.g., reformate, which contains high levels of benzene into a low-benzene content feedstock that is suitable for gasoline blending initially removes benzene from the reformate by extractive distillation, then partially hydrogenating the high purity benzene into cyclohexane under mild conditions in a one-stage hydrogenation reactor, and thereafter recovering a cyclohexane product with high purity from the hydrogenation reactor effluent in a back-end purification step using extractive distillation. The initial or front-end separation step yields a low-benzene content reformate.
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