Alkylate technology selection for Fischer-Tropsch syncrude refining / Arno de Klerk in Industrial & engineering chemistry research, Vol. 47 N°18 (Septembre 2008)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6870–6877 Titre : Alkylate technology selection for Fischer-Tropsch syncrude refining Type de document : texte imprimé Auteurs : Arno de Klerk, Auteur ; Philip L. de Vaal, Auteur Année de publication : 2008 Article en page(s) : p. 6870–6877 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Alkylate Fischer-Tropsch syncrude Résumé : Technology selection to produce alkylate from straight run Fischer−Tropsch syncrude has been investigated. Alkylate is a high octane paraffinic motor-gasoline component and can be produced by direct alkylation (olefin addition to isobutane) or indirect alkylation (isobutene dimerization followed by hydrogenation). Neither isobutane nor isobutene is abundant in the light fraction of Fischer−Tropsch syncrude, which is rich in linear alpha-olefins. Direct alkylation (HF and H2SO4) and indirect alkylation (acidic resin and solid phosphoric acid) based flowschemes were evaluated in terms of alkylate yield, octane number, compatibility to Fischer−Tropsch derived feed, and environmental friendliness. It was found that the refining focus determined the selection. Indirect alkylation with solid phosphoric acid was found to be the best in terms of Fischer−Tropsch feed compatibility, environmental friendliness, and least refining complexity. The highest alkylate yield could be obtained by a combination of partial olefin hydrogenation, hydroisomerization, and direct alkylation. Butene skeletal isomerization in combination with indirect alkylation yielded an alkylate with the highest octane number. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800288n [article] Alkylate technology selection for Fischer-Tropsch syncrude refining [texte imprimé] / Arno de Klerk, Auteur ; Philip L. de Vaal, Auteur . - 2008 . - p. 6870–6877. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6870–6877 Mots-clés : Alkylate Fischer-Tropsch syncrude Résumé : Technology selection to produce alkylate from straight run Fischer−Tropsch syncrude has been investigated. Alkylate is a high octane paraffinic motor-gasoline component and can be produced by direct alkylation (olefin addition to isobutane) or indirect alkylation (isobutene dimerization followed by hydrogenation). Neither isobutane nor isobutene is abundant in the light fraction of Fischer−Tropsch syncrude, which is rich in linear alpha-olefins. Direct alkylation (HF and H2SO4) and indirect alkylation (acidic resin and solid phosphoric acid) based flowschemes were evaluated in terms of alkylate yield, octane number, compatibility to Fischer−Tropsch derived feed, and environmental friendliness. It was found that the refining focus determined the selection. Indirect alkylation with solid phosphoric acid was found to be the best in terms of Fischer−Tropsch feed compatibility, environmental friendliness, and least refining complexity. The highest alkylate yield could be obtained by a combination of partial olefin hydrogenation, hydroisomerization, and direct alkylation. Butene skeletal isomerization in combination with indirect alkylation yielded an alkylate with the highest octane number. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800288n

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