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:
Jun. 28, 2016
Filed:
Feb. 06, 2014
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Masaki Iijima, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A method or system for recovering carbon dioxide is provided with which in a plant for synthesizing methanol from a hydrocarbon gas or synthesizing gasoline therefrom via methanol, the waste heat of a low-temperature reformed gas, which has conventionally been discarded and is difficult to reutilize, can be effectively utilized. In the system for synthesizing methanol or gasoline from a hydrocarbon gas and for recovering carbon dioxide, a reformed gas is produced by steam reforming of the hydrocarbon gas. Since a combustion discharge gas generates when a fuel gas is burned in order to obtain a heat source for the steam reforming, carbon dioxide is recovered from the combustion discharge gas in an absorption tower () using an absorption liquid. In a regeneration tower (), the reformed gas is used first as a heat source for a first reboiler (A) located at the tower bottom, and the reformed gas having a lowered temperature is then used as a heat source for a second reboiler (B) located in a middle position to heat the absorption liquid in stages, thereby regenerating the absorption liquid.