C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 29/10 (2006.01) C10G 19/02 (2006.01) C10G 29/16 (2006.01) C10G 29/28 (2006.01)
Patent
CA 2573470
A method for reducing the level of elemental sulfur from sulfur-containing hydrocarbon streams as well as reducing the level of total sulfur in such streams. Preferred hydrocarbon streams include fuel streams such as naphtha and distillate streams that are transported through a pipeline. The sulfur- containing hydrocarbon stream is blended with an aqueous solution of water, a caustic, and at least one metal sulfide thereby resulting in an organic phase and an aqueous phase. The blended stream is then passed through a bed of solids having a suitable surface area so that a substantial amount of the sulfur moieties are removed by the aqueous phase.
La présente invention concerne un procédé de réduction du niveau de soufre élémentaire dans des flux d'hydrocarbures qui contiennent du soufre ainsi que de réduction du niveau de soufre total dans de tels flux. Des flux d~hydrocarbures préférés comprennent des flux de combustibles tels que des flux de naphta et de distillat qui sont transportés par oléoduc. Le flux d~hydrocarbures contenant du soufre est mélangé à une solution aqueuse d~eau, d~un produit caustique et d~au moins un sulfure métallique, pour ainsi produire une phase organique et une phase aqueuse. Le flux mélangé est ensuite passé dans un lit de solides qui présente une aire de surface appropriée de sorte qu'une quantité importante de groupes de soufre sont éliminés par la phase aqueuse.
Feimer Joseph L.
Lawlor Lawrence J.
Leclair David J.
Borden Ladner Gervais Llp
Exxonmobil Research And Engineering Company
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