Title:
The method or system which collects carbon dioxide
Document Type and Number:
Japanese Patent JP6004965
Kind Code:
B2
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 (40) using an absorption liquid. In a regeneration tower (10), the reformed gas is used first as a heat source for a first reboiler (20A) located at the tower bottom, and the reformed gas having a lowered temperature is then used as a heat source for a second reboiler (20B) located in a middle position to heat the absorption liquid in stages, thereby regenerating the absorption liquid.
Inventors:
Masaki Iijima
Application Number:
JP2013028878A
Publication Date:
October 12, 2016
Filing Date:
February 18, 2013
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
C01B3/38; C01B32/50; C07C29/151; C07C31/04; C10G3/00
Domestic Patent References:
JP2003034503A | ||||
JP2006213580A | ||||
JP2011057485A | ||||
JP2012523478A |
Attorney, Agent or Firm:
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo
Hidefumi Kawamura
Ayako Nakamura
Satoshi Morimoto
Kyoko Tsunoda
Yu Tanaka
Tokumoto Koichi
Atsushi Watanabe
Arihara Koichi
Matsushima Tetsuo
Hidefumi Kawamura
Ayako Nakamura
Satoshi Morimoto
Kyoko Tsunoda
Yu Tanaka
Tokumoto Koichi
Atsushi Watanabe
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