The deaerator equipment for Ichihara City, Japan’s first biomass circulating fluidized-bed boiler project, has been delivered successfully.

Release Date:

2022-09-26

Andritz PowerFluid biomass circulating fluidized-bed boiler, equipped with a flue-gas cleaning system, is deployed at the Ichihara Biomass Power Plant in Japan.

Andritz, an international technology group, supplied the PowerFluid biomass circulating fluidized-bed boiler and flue-gas cleaning system to Mitsui Shipbuilding’s biomass power plant in Ichihara City, Chiba Prefecture. Following successful verification of all performance guarantee criteria as scheduled in November 2020, commercial operations commenced in December 2020.

In this project, our company supplied Andritz with an integrated deaerator, which is a dual‑standard product compliant with both ASME and JSME specifications. The deaerator is a key auxiliary device in the feedwater heating system; its primary function is to remove oxygen, carbon dioxide, and other non-condensable gases from softened water. Additionally, it heats the softened water to its saturation temperature at the deaerator’s operating pressure, typically using steam extracted from the turbine’s high‑pressure stage, as well as surplus steam and high‑temperature condensate from other sources. This enhances the thermal efficiency of the system and ensures that saturated water meeting the required oxygen‑content standards is stored in the deaerator’s water tank, readily available to meet boiler demands and guarantee safe boiler operation. http://www.jirong-thermal.com/