| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6641387 | Fuel | 2013 | 9 Pages |
Abstract
⺠Non-continuum liquid-liquid extraction of naphthenic acids at different pHs from two crude oil samples. ⺠The residue and the acid fraction were characterized using ESI(â) FT-ICR MS, FTIR and sulfur analysis. ⺠We observe a decreasing TAN in the original oil with increasing pH (7 â 14), reaching a value of almost zero at pH 14. ⺠The most abundant naphthenic acids extracted are those with short alkyl chain lengths (
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Authors
Keroly A.P. Colati, Guilherme P. Dalmaschio, Eustáquio V.R. de Castro, Alexandre O. Gomes, Boniek G. Vaz, Wanderson Romão,