The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2026
Filed:
Dec. 07, 2020
Shell Oil Company, Houston, TX (US);
Willem Derks, Amsterdam, NL;
SHELL USA, INC., Houston, TX (US);
Abstract
The invention relates to a process for the recovery of aliphatic hydrocarbons from a liquid hydrocarbon feedstock stream comprising aliphatic hydrocarbons, heteroatom containing polar components and optionally aromatic hydrocarbons, said process comprising the steps of: a) mixing the liquid hydrocarbon feedstock stream with a solvent resulting in a liquid mixture; b) cooling the liquid mixture obtained in step a) to a temperature in the range of from +5° C. to −30° C. to obtain wax crystals in the mixture; c) separating wax crystals from the cooled liquid mixture obtained in step b) to produce a wax comprising aliphatic hydrocarbons and a dewaxed liquid mixture comprising solvent, heteroatom containing polar components and optionally aromatic hydrocarbons; d) separating solvent from the liquid mixture obtained in step c) and optionally recycling the separated solvent to step a). Further, the present invention relates to a process for the recovery of aliphatic hydrocarbons from plastics, and to a process for steam cracking a hydrocarbon feed.