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8306657 
Meetings & Symposia 
Yields and operational conditions for deasphalting of vacuum bottoms using n-C4 + i-C4, n-C5 + i-C5, n-C6 and n-C7 solvents 
Corredor, LM; Carrillo, JA; Parra, MJ 
2007 
0 
Abstracts of Papers of the American Chemical Society
ISSN: 0065-7727 
AMER CHEMICAL SOC 
Boston, MA 
234th ACS National Meeting 
English 
WOS:000207593903481 
Solvent deasphalting is one of the most appropriate technologies for crude oil residues upgrading. It can be used in a variety of ways and it is less expensive to build and operate than other residue conversion processes. In addition, this technology allows the recover of large quantities of high quality oil, which can be processed further in FCC and hydrocracking units. This paper describes the demetalized oil (DMO) yield and its quality (CCR, Ni, V and asphaltenes contents) as function of used solvent (i-butane + n-butane, n-pentane + i-pentane, n-hexane and n-heptane), solvent/feed ratio (5-10) and extraction temperature (115-165°C). The runs were carried out in the solvent deasphalting pilot plant. It was found that the most important variable was the solvent nature. As the molecular weight increases, the yield of DMO increases from 50 wt % to 83 wt %, however, the quality of the DMO slightly declines.