The University of Tokyo

Nippon Steel & Sumikin Engineering Co., Ltd.

Mikihiro Hayashi

Hiroshi Nishihara

Atsushi Tsutsumi

Akira Kishimoto

Yasuki Kansha

Kazuki Murahashi

Tomohiro Mimura

Yutaka Ekuni

Fumiyuki Toshimitsu

A carbon dioxide gas recovery device is provided which includes an absorption tower causing an absorbent to absorb carbon dioxide gas to generate a rich absorbent and a regeneration tower regenerating a lean absorbent by heating the rich absorbent to separate carbon dioxide gas therefrom. The regeneration tower includes a reboiler system heating the absorbent led out from the regeneration tower and reintroducing the heated absorbent into the regeneration tower and a mixed gas cooling system cooling a mixed gas led out from the regeneration tower, condensing a vapor fraction of a solute and a solvent, reintroducing the condensed vapor fraction into the regeneration tower, and discharging carbon dioxide gas. The carbon dioxide gas recovery device further includes a heat pump as a heat source of an endothermic reaction in which carbon dioxide gas is separated from the rich absorbent in the regeneration tower.

Carbon dioxide gas recovery device

The present invention provides a compound having absorbing and luminescence wavelengths at relatively longer wavelength side of the visible area, and having thermal stability, which acts as a dye and/or a luminescence material and has practical utility therefor, and a production method thereof. The above subject of the present invention can be solved by a compound represented by general formula I: R&#x2014;X&#x2014;R, wherein Rand Reach independently represents, for example, an N,N-diaryl-4-aminophenyl group, and X is one condensed ring group selected from the group consisting of following formulae X-1 to X-3: 

Compound comprising triarylamine moieties and a condensed ring moiety, and the production method thereof

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Tokyo, Japan

Mikihiro Hayashi