28-07-2023 дата публикации
Номер: CN116496812A
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The invention relates to the technical field of petroleum processing, and discloses a waste plastic pyrolysis oil hydrogenation pretreatment method, which comprises: respectively preheating waste plastic pyrolysis oil and hydrogen, mixing with a hydrogenation catalyst, and introducing into a slurry bed hydrogenation reactor for hydrogenation; after hydrogenation, effluent is separated by a two-stage cyclone hydraulic separator, obtained tailings are partially circulated to the slurry bed hydrogenation reactor, and a liquid product enters a high-pressure separator and a low-pressure separator; the gas separated by the high-pressure separator is recycled after being adsorbed and purified; a liquid product separated by the low-pressure separator enters a solid-liquid separation unit, and an obtained liquid-phase product is pyrolysis oil subjected to hydrogenation pretreatment. According to the present invention, the process flow is simple, the cycle service life of the hydrogenation catalyst ...
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