Hydro-upgrading method for production of low-condensation point motor fuel from biolipid
A bio-oil, hydrogenation and upgrading technology, applied in the field of hydrogenation, can solve the problems of shutdown replacement, influence of hydrogenation catalyst operation cycle, shortening operation cycle, etc., and achieve the effect of lowering the freezing point
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[0024] The method of the present invention is specifically as follows: one or more mixed oils in the biological oil are used as the raw material oil, and under the hydrogenation operation conditions, the raw material oil and hydrogen pass through the low-temperature and high-temperature hydrogenation reactors filled with catalysts, and the obtained The gas obtained from the high-pressure separator (abbreviated as high-fraction) is used to recycle the hydrogen-generated oil, or it can also be discharged from the system. The obtained liquid fractionation is mixed with hydrogen into the second-stage reaction zone containing a hydrogenation-upgrading catalyst with heterogeneous properties, and the obtained The gas obtained from the hydrogenation-upgraded stream separated in the high-pressure separator (referred to as the high fraction) can be recycled and used, or it can be discharged from the system. It is also contemplated to recycle a portion of the diesel and / or unconverted oil...
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