Method for removing alkali-nitrogen compound from poor wax oil by complex extraction
A low-quality wax oil and extraction agent technology, applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of low alkali nitrogen removal rate and low raffinate yield, and achieve low solvent loss and raffinate yield. The effect of high efficiency and small ratio of agent to oil
Inactive Publication Date: 2004-01-28
EAST CHINA UNIV OF SCI & TECH
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Abstract
The present invention discloses a solvent method for upgrading low-grade wax oil, which uses organic acid, water soluble high molecular or/and water as extraction agent, in the range of that the ratio of solvent and oil is 5:0.01-1 and the temp. is 30-110 deg.C the low-grade wax oil can be extracted, the reffinate oil yield can be up to above 95%, the alkali nitrogen removed rate can be up to above 95% and the solvent recovery rate is up to above 99%, and the cover wax oil obtained by said invented process has low alkali nitrogen content, and is suitable for catalytic cracking raw material.
Application Domain
Hydrocarbon oils refining
Technology Topic
WaxSolvent +7
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