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:
Mar. 15, 2022
Filed:
Oct. 23, 2018
Toyo Engineering Corporation, Tokyo, JP;
TOYO ENGINEERING CORPORATION, Tokyo, JP;
Abstract
Provided are an apparatus and a method for separation and recovery of propane and heavier hydrocarbons from LNG. The apparatus has, from the upstream side toward the downstream side of LNG supply, first column () equipped with first column overhead condenser (), first column bottom reboiler () and side reboiler (), and second column () equipped with second column overhead condenser () and second column bottom reboiler (). The first column () separates methane and a part of ethane as an overhead vapor and separates remaining ethane and C3 or higher hydrocarbons as a bottom liquid. The second column () separates ethane as an overhead vapor and separates C3 or higher hydrocarbons as a bottom liquid.