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:
Sep. 21, 2021
Filed:
Dec. 17, 2019
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
Embodiments of the disclosure provide a method and system for recycling a plastic material to produce hydrocarbons. A plastic feed and a water feed are introduced to a first stage reactor. The first stage reactor is operated at a pressure equal to or greater than 22.06 MPa and a temperature equal to or greater than 373.9 deg. C. to produce an effluent stream. Residual solid components can be removed from the effluent stream. The effluent stream is introduced to a second stage reactor. The second stage reactor is operated at a pressure less than that of the first stage reactor but equal to or greater than 22.06 MPa and a temperature greater than that of the first stage reactor to produce a product stream. The plastic feed can include polyolefins. Optionally, a sulfur additive feed can be introduced either to the first stage reactor or the second stage reactor. Optionally, a residual oil feed can be introduced either to the first stage reactor or the second stage reactor.