TREATING AND STEAM CRACKING A COMBINATION OF PLASTIC-DERIVED OIL AND USED LUBRICATING OILS TO PRODUCE HIGH-VALUE CHEMICALS
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United States of America Patent
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Issued Date -
Jun 9, 2022
app pub date -
May 6, 2020
filing date -
May 6, 2020
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Abstract
Systems and methods for producing one or more olefins using waste plastics and used lubricating oil are disclosed. Mixed waste plastic is processed in a pyrolysis unit to produce plastic derived oil. The plastic derived oil is subsequently blended with used lubricating oil to form a mixture. The mixture is then separated into (1) a light-end stream comprising C1 to C8 hydrocarbons and (2) a heavy hydrocarbon feed stream. The heavy hydrocarbon feed stream is then processed to produce a steam cracking feedstock stream. The light end-stream and/or the steam cracking feedstock stream are then flowed into a cracking unit to produce one or more olefins.
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