Abstract: A process provides oligomerization feed stream comprising C5 hydrocarbons and olefins along with C4 olefins to an oligomerization zone. The oligomerization feed stream may be obtained from cracked FCC products. Unreacted C5 hydrocarbons can be recycled to the oligomerization zone to maintain the liquid phase therein.

Abstract: A process and apparatus that uses a debutanizer with a side stripper can recover a light stream, an intermediate stream and a liquid stream. One of the intermediate stream and the liquid stream can be recycled to oligomerization or to fluid catalytic cracking.

Abstract: Disclosed is a process and apparatus for switching oligomerization feed between a first oligomerization zone that includes a uni-dimensional small pore zeolite to make more diesel and a second oligomerization zone that includes SPA catalyst for making more gasoline. The diesel can be recycled to make more propylene. The process and apparatus will provide refiners with flexibility to produce the most valuable product commensurate with fluctuating market conditions.

Abstract: A process and apparatus that uses a debutanizer with a side stripper can recover a light stream, an intermediate stream and a liquid stream. One of the intermediate stream and the liquid stream can be recycled to oligomerization or to fluid catalytic cracking.

Abstract: One exemplary embodiment can be a process for oligomerizing one or more hydrocarbons. Usually, the process includes providing a feed including one or more C3 and C4 hydrocarbons to a separation zone, separating a first stream including an effective amount of C3 olefins for oligomerizing, separating a second stream including an effective amount of one or more C4 olefins for oligomerizing, providing at least a portion of the first stream to a first oligomerization zone for producing at least one of a C9 and a C12 hydrocarbon, and providing at least a portion of the second stream to a second oligomerization zone for producing at least one of a C8 and a C12 hydrocarbon.

Abstract: One exemplary embodiment can be a process for oligomerizing one or more hydrocarbons. The process can include providing a feed including one or more C3 and C4 hydrocarbons to a separation zone, separating at least a portion of C3 olefins, sending the C3 olefins to a first oligomerization zone for producing one or more C9 hydrocarbons, and returning at least a portion of an effluent from the first oligomerization zone to the separation zone.

Abstract: One exemplary embodiment can be a process for separating at least one oligomerized effluent. The process can include providing an effluent from at least one of a first oligomerization zone for producing at least one of a C9 and a C12 hydrocarbon and a second oligomerization zone for producing at least one of a C8 and a C12 hydrocarbon, providing at least a portion of the effluent to a separation zone, and providing at least one stream from the separation zone to a hydrotreatment zone.