LUBE BASE OIL MANUFACTURING PROCESS UTILIZING REFINED OIL FRACTION OF WASTE LUBRICANT, AND LUBE BASE OIL MANUFACTURED THEREBY
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United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Mar 21, 2024
filing date -
Mar 21, 2024
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Abstract
A method of recycling waste lubricant. The method includes providing a waste lubricant-derived oil fraction, pretreating the waste lubricant-derived oil fraction, and hydrocracking the pretreated waste lubricant-derived oil fraction. The method has economic advantages in that waste lubricant can be recycled into fuel oil and high-grade lube base oil with a relatively high yield compared to a lube base oil manufacturing process utilizing only unconverted oil as a feedstock.
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