Kabushiki Kaisha Toshiba

Yukio Ohashi

Takashi Ogawa

Hideo Kitamura

Haruhiko Hirata

Katsuya Yamashita

Masafumi Fukuda

Susumu Yamanaka

Manabu Sakurai

Koichi Kawamoto

The present invention provides a carbon dioxide recovery apparatus capable of recovering heat energy of carbon-dioxide-containing gas which includes an absorbing tower to generate and discharge a rich liquid absorbing carbon dioxide as carbon-dioxide-containing gas is introduced and contacted to an absorbing liquid to absorb carbon dioxide, carbon dioxide release devices to discharge semi-lean liquids which have steam containing a part of carbon dioxide released by heating the rich liquid discharged from the absorbing tower, and a regeneration tower to generate a lean liquid which has steam containing remaining carbon dioxide released and separated by heating the semi-lean liquids discharged from the carbon dioxide release devices and to return the lean liquid to the absorbing tower.

Carbon dioxide recovery apparatus and carbon dioxide recovery method

According to one embodiment, a carbon dioxide separation recovery system includes an absorption tower that allows carbon dioxide to be absorbed to an absorption liquid, a regeneration tower that regenerates the absorption liquid, a reboiler that heats the absorption liquid of the regeneration tower, using a heating medium, and a measuring device that measures an amount of heat supplied to the absorption liquid from the heating medium. The measuring device includes a cooler that cools the heating medium discharged from the reboiler, and obtains the amount of heat that is supplied to the absorption liquid from the heating medium by subtracting an amount of heat that is retained by the heating medium cooled by the cooler and an amount of heat, which is removed from the heating medium in the cooler, from an amount of heat that is retained by the heating medium supplied to the reboiler.

Carbon dioxide separation recovery system and method of measuring amount of reboiler input heat

After absorbing oxygen together with carbon dioxide in an absorber, absorbing liquidis supplied to oxygen collecting unitsand. The oxygen collecting unitsandinclude silver to collect the oxygen in the absorbing liquidand eliminate the oxygen from the absorbing liquid. A regenerating unitseparates and recovers the oxygen collected in one of the two oxygen collecting unitsandto regenerate the oxygen collecting unit when the other oxygen collecting unit is supplied with the absorbing liquid. A continuous operation can be achieved by switching and using the two oxygen collecting unitsand

Carbon dioxide separation and recovery apparatus

According to one embodiment, a carbon-dioxide-recovery-type thermal power generation system includes an absorption column allows carbon dioxide contained in exhaust gas from a boiler to be absorbed in an absorption liquid, a regeneration column that discharges a carbon dioxide gas from the absorption liquid supplied from the absorption column, a reboiler that heats the absorption liquid discharged from the regeneration column and supplies steam generated, to the regeneration column, a condenser that generates condensate by cooling the steam exhausted from a turbine, a heater that heats the condensate, a water supply pump that supplies the condensate to the boiler, a line through the steam extracted from the turbine is supplied to the reboiler and the heater, and a steam flow rate adjusting unit. The steam flow rate adjusting unit maintains an amount of steam, which is extracted from the turbine through the line, to be constant.

Carbon-dioxide-recovery-type thermal power generation system and method of operating the same

In an embodiment, a COrecovery system has an absorber, a regenerator, and a circulation device. An absorption liquid has an aqueous solution of amine having an alcohol group, and dimethyl silicone oil in which a part of methyl groups is substituted by at least one type selected from an aminoalkyl group, a carboxyl group, and a hydroxyl-containing alkyl group. The absorber contacts a combustion exhaust gas of a fossil fuel and the absorption liquid to absorb CO, which is contained in the combustion exhaust gas, into the absorption liquid. The regenerator releases COby applying thermal energy to the CO-absorbed absorption liquid. A circulation device circulates the absorption liquid between the absorber and the regenerator.

[object Object]

A turbine system and method for power generation has an electric generator, a reformer, a cooler, a fuel compressor, an air compressor, a combustor, a turbine, an evaporator. The reformer reforms fuel containing a mixture of hydrocarbon gas and steam to produce hydrogen and carbon dioxide. To enhance reformation, the reformation is carried out under pressure at 7 ata or less. To aid compression, the cooler cools the reformed fuel before the compressor compresses the reformed fuel. The combustor burns air compressed by the air compressor, which is driven by the turbine, and the reformed fuel received from the fuel compressor to generate hot gas. The turbine receives the hot gas from the combustor and drives the generator to generate electricity. The reformer receives the hot gas discharged from the turbine as a heat source to heat the fuel and chemically reform the fuel.

Growing community of inventors

Yokohama, Japan

Yukio Ohashi