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:
Apr. 08, 2025
Filed:
Mar. 28, 2022
Ebara Environmental Plant Co., Ltd., Tokyo, JP;
EBARA ENVIRONMENTAL PLANT CO., LTD., Tokyo, JP;
Abstract
The present invention relates to a raw-material supply system and a raw-material supply method for pyrolyzing waste plastic including PVC and PET. The raw-material supply system includes: a slaked-lime supply device () configured to feed slaked lime to the waste plastic; an operation controller () configured to instruct the slaked-lime supply device () to feed the slaked lime to the waste plastic, the slaked lime to be fed having the number of moles that is 1 to 4 times a total number of moles of the polyvinyl chloride and the polyethylene terephthalate in the waste plastic; a melting dechlorination device () configured to dechlorinate the polyvinyl chloride and hydrolyze the polyethylene terephthalate by mixing the waste plastic and the slaked lime while heating the waste plastic and the slaked lime; a degassing hopper () coupled to the melting dechlorination device (); and a raw-material supply device () configured to deliver the molten waste plastic from the degassing hopper () to a pyrolysis furnace ().