TNSC launches CO2 recovery equipment to help achieve a carbon neutral society

Taiyo Nippon Sanso Corporation (“TNSC”, President Kenji Nagata), a Japanese industrial gas company in Nippon Sanso Holdings Group, announces that they have developed and commercialized PSA (Pressure Swing Adsorption)-type Carbon dioxide (CO₂) recovery equipment which enables recovery of CO₂ at a concentration of 98% or higher from highly concentrated CO₂ emission sources such as lime production furnaces, and will launch sales starting this April.

Background of Development

There has been an increasing number of inquiries from customers about CO₂ recovery in response to the Japanese government’s CO2 reduction target for FY2030 of 46% compared to FY2013. In order to address these types of requests from customers, TNSC has worked on developing CO₂ recovery equipment by harnessing the gas separation and purification technology it has cultivated up until now. The CO₂recovery equipment captures CO₂, and the highly concentrated CO₂ can be used as a raw material for carbonates and other materials or for methanation. As a result, TNSC will support customers’ efforts to reduce CO₂ emissions and help to realize a carbon neutral society.

Features of the Equipment

The CO₂ recovery equipment developed by TNSC is PSA-type equipment which has adopted absorbents with outstanding properties for separating CO2 from highly concentrated (20% or higher) CO₂ emission sources (mainly mixed gases composed of N2 and CO₂) and a control system, based on the knowledge and results TNSC has accumulated in biogas purification and PSA for rare gas recovery. This equipment achieves efficient operation with a narrow range of pressure fluctuation (electric power).

The equipment is designed for small- to medium-scale emission sources (1000 Nm3 /h emission class) and can be easily introduced and installed as a unit, with specifications that can be modified to meet customer needs. Heating is not required for CO₂ concentration and recovery, so highly concentrated CO₂ can be obtained efficiently even from CO₂ emission sources without a heat source.

By combining the developed CO₂ recovery equipment with the technologies of producing and supplying CO₂ we have cultivated, TNSC will contribute to the realization of a carbon-neutral society through the recovery and the utilization of CO₂ by leveraging our gas supply networks.