Catalytic Coprocessing of Delayed Coker Light Naphtha with Light Straight-run Naphtha/FCC Gasoline |
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| Authors: | A. Lengyel S. Magyar D. Kalló J. Hancsók |
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| Affiliation: | 1. Hungrana Ltd. , Szabadegyháza , Hungary;2. Hungarian Academy of Sciences, Chemical Research Center , Budapest , Hungary;3. Pannon University, Department of Hydrocarbon and Coal Processing , Veszprém , Hungary |
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| Abstract: | Abstract Upgrading of delayed coker light naphtha (DCLN) is difficult due to its high diolefin and silicon content. Mixtures of light straight-run naphtha (LSRN) and DCLN fractions were hydrotreated in two stages over NiMo/Al2O3 and CoMo/Al2O3 catalysts (diolefin saturation followed by hydrodesulphurization (HDS). Naphtha fractions free of diolefins, olefins, sulfur, and silicon were produced, which are excellent feeds for naphtha isomerization. One-stage selective HDS tests were also conducted with blends of DCLN (up to 5 vol%) and fluid catalytic cracked (FCC) gasoline over CoMo/Al2O3. Diolefin-free products of <10 mg/kg sulfur could be produced with a research octene number (RON) loss of max. 3. |
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| Keywords: | coprocessing delayed coker light naphtha FCC gasoline selective hydrodesulphurization |
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