Physicochemical properties of spent zeolite and catalysts based on it

Kadyrov, Ilkhom; Bekturdiev, Gulom; Molodozhenyuk, T. B.; Salimov, Z. S.; Saidakhmedov, Sh. M.; Sharafutdinov, U. T.

doi:10.1007/bf02694249

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2008

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“…Often, they have reasonable cycle times, and lifetimes, and they can be regenerated. [17][18][19] In the present work, we dimerized and oligomerized C 5 olefins over zeolite catalyst to branched decene (and higher) oligomer products. In order for such a process to be viable, it must have a relatively low cost since any process improvements in a refinery are strongly tied to commodity product pricing and return on capital investment measures.…”

Section: Introductionmentioning

confidence: 99%

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Oligomerization of C₅ Olefins in Light Catalytic Naphtha

2008

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Refinery gasoline contains C5 alkanes and alkenes that are being displaced due to regulations on maximum seasonal Reid vapor pressure (RVP) limits and increased blending of ethanol. As volumes of displaced C5ʼs increase, technologies for returning C5ʼs to the gasoline or diesel pools become increasingly important. Isolation of C5 streams followed by dimerization/oligomerization of the C5 olefins is one route to return displaced C5ʼs to the gasoline pool. Large pore, acidic zeolite catalysts have been evaluated for this purpose. The process results in an overall volume loss due to volume contraction and a possible loss of research octane number (RON).

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Section: Introductionmentioning

confidence: 99%

“…Various processes have been developed where zeolite catalysts have proven to be a low cost option to upgrade refinery products. Often, they have reasonable cycle times, and lifetimes, and they can be regenerated – .…”

Section: Introductionmentioning

confidence: 99%