Gasoline sulfur reduction using hydrotalcite like compounds

C - Chemistry – Metallurgy – 10 – G

Patent

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Details

C10G 11/00 (2006.01) B01J 21/16 (2006.01) C10G 11/02 (2006.01) C10G 25/00 (2006.01) C10G 25/06 (2006.01)

Patent

CA 2548167

The present invention describes novel methods for reducing sulfur in gasoline with hydrotalcite like compound additives, calcined hydrotalcite like compounds, and/or mixed metal oxide solution solutions. The additives can optionally further comprise one or more metallic oxidants and/or supports. The invention is also directed to methods for reducing gasoline sulfur comprising contacting a catalytic cracking feedstock with a mixed metal oxide compound comprising magnesium and aluminum and having an X-ray diffraction pattern displaying a reflection at least at a two theta peak position at about 43 degrees and about 62 degrees, wherein the ratio of magnesium to aluminum in the compound is from about 1:1 to about 10:1.

La présente invention concerne de nouveaux procédés pour réduire la teneur en soufre dans de l'essence au moyen d'additifs à base de composés de type hydrotalcite, de composés de type hydrotalcite et/ou de solutions d'oxyde métallique mixtes. Les additifs peuvent éventuellement comprendre aussi un ou plusieurs oxydants et/ou supports métalliques. La présente invention concerne également des procédés pour réduire la teneur en soufre dans de l'essence, qui consistent à mettre en contact une charge de craquage catalytique avec un composé d'oxyde métallique mixte comprenant du magnésium et de l'aluminium et présentant un motif de diffraction des rayons X qui affiche une réflexion au moins en une position de pic de deux thêtas à environ 43 degrés et environ 62 degrés, le rapport de magnésium sur aluminium dans le composé allant d'environ 1:1 à environ 10:1.

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