Selective hydroprocessing and mercaptan removal

Details Selective hydroprocessing and mercaptan removal Selective hydroprocessing and mercaptan removal

C - Chemistry, Metallurgy

10

G

C10G 45/02 (2006.01) C10G 19/00 (2006.01) C10G 19/02 (2006.01) C10G 19/04 (2006.01) C10G 67/00 (2006.01) C10G 67/04 (2006.01) C10G 67/10 (2006.01) C10G 67/12 (2006.01) C10L 1/02 (2006.01)

Patent

CA 2407066

A gasoline blendstock is produced having a decreased amount of sulfur by first selectively hydrodesulfurizing a cracked naphtha that contains both non- mercaptan and mercaptan sulfur to produce a first product having a decreased amount of non-mercaptan sulfur. The mercaptan sulfur in the first product is then converted or removed to obtain a second product having a decreased amount of mercaptan sulfur.

Selon l'invention, pour obtenir une base pour carburant ayant une quantité réduite de soufre, on hydrodésulfure de manière sélective un naphta craqué contenant à la fois un soufre mercaptan et un soufre non mercaptan afin d'obtenir un premier produit ayant une quantité réduite de soufre non mercaptan. Le soufre mercaptan présent dans ce premier produit est ensuite converti ou éliminé afin d'obtenir un second produit ayant une quantité réduite de soufre mercaptan.

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