SEQUENTIAL DEASPHALTING FOR BASE STOCK PRODUCTION

• Main Authors: CARROLL MICHAEL B, HARANDI MOHSEN N, LEVIN DORON, DANDEKAR AJIT B, BROWN STEPHEN H, SENZER ERIC B, ROSS APRIL D, GUPTA HIMANSHU, ALDOUS KETIH K, YOHE SARA L, LATTNER JAMES R, OWENS TRACIE L, WOOD GLENN C, HILBERT TIMOTHY L, PYL STEVEN
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2018
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

Methods are provided for producing lubricant base stocks from deasphalted oils formed by sequential deasphalting. Tile deasphalted oil can be exposed a first deasphalting process using a first solventthat can provide a lower severity of deasphalting and a second deasphalting process using a second solvent that can provide a higher seventy of deasphalting. This can result in formation of at leasta deasphalted oil and a resin fraction. The resin fraction can represent a fraction that traditionally would have been included as part of a deasphalter rock fraction. 提供由通过顺序脱沥青形成的脱沥青油生产润滑剂基础油料的方法。可以使脱沥青油暴露在使用可提供较低脱沥青苛刻度的第溶剂的第脱沥青过程和使用可提供较高脱沥青苛刻度的第二溶剂的第二脱沥青过程下。这可导致形成至少脱沥青油和树脂馏分。该树脂馏分可代表传统上作为脱沥青塔沥青岩馏分的部分包含的馏分。