Four-component analysis of catalytic feedstock oil
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What does the four-component analysis of catalytic feed oil refer to? Are they saturated hydrocarbons, aromatic hydrocarbons, resins, and asphaltenes?
Yes, it refers to these four indicators.
Yes, it refers to these four indicators. I didn’t intend to post twice; it was because the first attempt resulted in an error stating “server not found.” Please delete the second post. This post was last edited by ** the years on 2007-12-25 at 20:12
That’s right, the four groups consist of these four elements
The four-component separation method is primarily used to study the chemical composition of residue oil (especially vacuum residue), that is, to separate it into saturated components, aromatic components, resins, and asphaltenes. The method involves first precipitating the asphaltenes in the raw material using n-heptane, and then performing quantification ； The soluble fraction of n-heptane was washed with various solvents on a neutral alumina adsorption column with 1% water content, thereby separating the saturated fraction, the aromatic fraction, and the gum. For the specific test procedure, refer to relevant literature!