solvent refining

solvent refining

[′säl·vənt ri‚fīn·iŋ]
(chemical engineering)
The process of treating a mixed material with a solvent that preferentially dissolves and removes certain minor constituents (usually the undesired ones); common in the petroleum refining industry.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The manufacturing process either involves solvent refining, dewaxing and hydrotreating.
Shale oil was pre-concentrated by the method of solvent refining. The basic nitrogen and phenolic compounds were concentrated in the extract oil, as shown in Figure 1.
The solvent refining method was used for preliminary enrichment.
Small amount of water in solvent may be removed during the solvent refining process.
The non-hydrotreating method generally includes procedures of acid-base refining, solvent refining, adsorption refining, adding stabilizer and so on.
Comparing the results given in Tables 2 and 3, it can be seen that the raffinate oil extracted at 60[degrees]C can be saled as 20# heavy diesel and, on the other hand, the raffinate oil can be saturated after treatment in conditions of catalytic cracking, because nitrogen content in the raffinate oil meets the standard of catalytic cracking after solvent refining. Considering the cost consumption, low temperature 60[degrees]C was chosen as the best temperature for extraction.
To get the knowledge of which compounds are removed during solvent refining, the ultimate analysis is prerequisite.
The removal of oxygen-containing compounds is efficient using solvent refining. Oxygen content decreases from 3.53 to 0.45%, and the removal rate is as high as 87.3%.