Mineral oils: processes and products – Refining – Organic acid or phenol contaminant removal
Patent
1995-06-02
1996-02-27
Myers, Helane
Mineral oils: processes and products
Refining
Organic acid or phenol contaminant removal
208 12, 208254H, 208237, C10G 2900
Patent
active
054945720
ABSTRACT:
This process for the desulfurization and denitration of light oil is effected by extraction with an organic solvent containing nitrogen. The invention also relates to light oil desulfurized and denitrated by said process as well as an organic solvent containing nitrogen for the extraction. The solvent is selected from among, for example, hetrocyclic compounds containing nitrogen, such as pyrrolidones, imidazolidinones, pyrimidinones and pyridinium salts, and acid amides. The combination of the process of this invention with any ordinary process for hydrodesulfurization enables the production of light oil having a sulfur content not exceeding 0.01% by weight. Light oil still containing benzothiophenone and dibenzothiophenone derivatives after hydrodesulfurization can be easily desulfurized to yield a desulfurized product not having any undesirable color, or any offensive smell. Also, the extraction of nitrogen compounds and aromatic compound from light oil is effected by the same process. As the re-extraction of sulfur compounds from the extracted phase or the separation of the extracted phase into the solvent and the extracted oil can be easily carried out, the solvent is reusable. The light oil treated according to the process of this invention enables a reduction of particulates in the combustion product thereof, and has a high cetane index.
REFERENCES:
patent: 2846358 (1958-08-01), Breber et al.
patent: 3052625 (1962-09-01), Gordon et al.
patent: 3175970 (1965-03-01), Bercik et al.
patent: 4085036 (1978-04-01), Murphy, Jr.
patent: 4539404 (1985-09-01), Thompson et al.
patent: 4746420 (1988-05-01), Darian et al.
patent: 4770763 (1988-09-01), Kusayanagi et al.
patent: 4909925 (1990-03-01), Hodgson
patent: 5137831 (1992-08-01), Gruteser
Doi Sadaaki
Horii Yuji
Mori Toshiatsu
Onuki Hitoshi
Ookuro Tsuyoshi
General Sekiyu Kabushikikaisha
Myers Helane
LandOfFree
Desulfurization and denitration of light oil by extraction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Desulfurization and denitration of light oil by extraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Desulfurization and denitration of light oil by extraction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1676247