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:
Nov. 18, 2014
Filed:
Dec. 18, 2009
Masaki Iijima, Tokyo, JP;
Tetsuya Imai, Tokyo, JP;
Keiji Fujikawa, Tokyo, JP;
Tatsuya Tsujiuchi, Tokyo, JP;
Tsuyoshi Oishi, Tokyo, JP;
Hiroshi Tanaka, Tokyo, JP;
Masaki Iijima, Tokyo, JP;
Tetsuya Imai, Tokyo, JP;
Keiji Fujikawa, Tokyo, JP;
Tatsuya Tsujiuchi, Tokyo, JP;
Tsuyoshi Oishi, Tokyo, JP;
Hiroshi Tanaka, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
Provided are high-pressure, medium-pressure, and low-pressure turbines; a boiler to generate steam for driving the turbines; a carbon dioxide recovery unit including an absorber that reduces carbon dioxide in combustion flue gas from the boiler by a carbon dioxide absorbent and a regenerator that regenerates an absorbent; a first auxiliary turbine that extracts steam from an inlet of the low-pressure turbine and recovers power by the steam thus extracted; a first steam delivery line to supply discharged steam from the first auxiliary turbine to a reboiler of the regenerator as a heat source; and a controller that controls driving of the first auxiliary turbine while keeping pressure of the discharged steam to be supplied to the reboiler within a tolerance range for the reboiler's optimum pressure corresponding to a fluctuation in an operation load of the boiler.