Mitsubishi Heavy Industries Limited

Yuudai Katou

Kazuo Ishida

Moritoshi Murakami

Masaki Yushima

Kouji Horizoe

Yusuke Yamashina

In the present invention, an input unit receives input of production conditions relating to a plurality of parameters relating to production of a biogas in a biogas production facility. An index value corresponds to an amount of heat per unit quantity of a biogas generated by the biogas production facility under the production conditions. A condition classifying unit classifies the production conditions on the basis of the plurality of parameters and the index value. An output unit outputs information relating to the result of classification by the condition classifying unit.

Biogas quality evaluation device, biogas quality evaluation method, and program

The system is provided with: a first heat exchanger which is interposed at an intersection between a rich solution supply line and a lean solution supply line, which has absorbed COand HS extracted from a bottom portion of an absorber, and a regenerated absorbent; a second heat exchanger which is interposed at an intersection between a semi-rich solution supply line and a branch line branched at the branch portion C from the lean solution supply line, and the lean solution; a merging portion which merges a branch line configured to supply the lean solution after heat exchange with the lean solution supply line; and a flow rate adjusting valve which is interposed in the lean solution supply line to adjust the distribution amount of the lean solution.

[object Object]

The system includes: an absorber which brings an introduction gas into contact with an absorbent that absorbs COand HS; an absorbent regenerator which releases COor the like to regenerate the absorbent; a second supply line which returns a regenerated absorbent to the absorber from the regenerator; a third supply line which extracts a semi-rich solution from the vicinity of a middle stage of the absorber, and introduces the semi-rich solution to the vicinity of the middle stage of the regenerator; and a semi-rich solution heat exchanger which is interposed at an intersection between the third supply line and the second supply line to perform the heat exchange between the semi-rich solution and the lean solution.

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Tokyo, Japan

Yuudai Katou