Mitsubishi Heavy Industries Limited

The Kansai Electric Power Co., Inc.

Noriko Watari

Masaki Iijima

Yasuyuki Yagi

Tomio Mimura

Ryuji Yoshiyama

Kouki Ogura

Yukihiko Inoue

Masazumi Tanoura

Shuuji Fujii

Mitsuru Sakano

Tarou Ichihara

Toshinobu Yasutake

Akihiro Sawata

Nobuki Oka

Hidemasa Kakigami

Syuji Fujii

A denitration catalyst for removing nitrogen oxide in an exhaust gas is represented by the following chemical formula: BaYAO, wherein A is an element selected from the group consisting of Bi, Sn, Ga, Mn, Ti, and Al; and X is 0.4 or more and 2 or less. A denitration device has the denitration catalyst for removing nitrogen oxide in an exhaust gas discharged from an exhaust gas generation source including a gas engine, a gas turbine, a melting furnace, or a boiler.

Denitration catalyst and denitration device

An absorbent liquid according to the present invention is an absorbent liquid for absorbing COor HS or both from gas, in which the absorbent liquid includes an alkanolamine as a first compound component, and a second component including a nitrogen-containing compound having in a molecule thereof two members or more selected from a primary nitrogen, a secondary nitrogen, and a tertiary nitrogen or a nitrogen-containing compound having in a molecule thereof all of primary, secondary, and tertiary nitrogens. The absorbent liquid has an excellent absorption capacity performance and an excellent absorption reaction heat performance, as compared to an aqueous solution containing solely an alkanolamine and a nitrogen-containing compound in the same concentration in terms of wt %, and can recover COor HS or both from gas with smaller energy.

[object Object]

Growing community of inventors

Kanagawa, Japan

Noriko Watari