发明授权
US09382486B2 Integrated hydrotreating, solvent deasphalting and steam pyrolysis process for direct processing of a crude oil 有权
综合加氢处理,溶剂脱沥青和蒸汽热解过程直接加工原油

Integrated hydrotreating, solvent deasphalting and steam pyrolysis process for direct processing of a crude oil
摘要:
A process is provided that is directed to a steam pyrolysis zone integrated with a hydrotreating zone and a solvent deasphalting zone to permit direct processing of crude oil feedstocks to produce petrochemicals including olefins and aromatics. The integrated hydrotreating, solvent deasphalting and steam pyrolysis process comprises charging the crude oil to a hydroprocessing zone to produce a hydroprocessed effluent; charging the hydroprocessed effluent to a solvent deasphalting zone to produce a deasphalted and demetalized oil stream and a bottom asphalt phase; thermally cracking the deasphalted and demetalized oil stream in the presence of steam to produce a mixed product stream; separating the mixed product stream; purifying hydrogen recovered from the mixed product stream and recycling it to the hydroprocessing zone; recovering olefins and aromatics from the separated mixed product stream; and recovering pyrolysis fuel oil from the separated mixed product stream.
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