March 31, 2023
CO2 Recovery Equipment with Capacity for 10 Tons Per Day to be Launched in April
Will Help to Realize a Carbon Neutral Society
Taiyo Nippon Sanso Corporation (“TNSC”, President Kenji Nagata), a Japanese industrial gas company
in Nippon Sanso Holdings Group, announces that it has developed and commercialized PSA (PressureSwing Adsorption)-type Carbon dioxide (CO2) recovery equipment which enables recovery of CO2 at aconcentration of 98% or higher from highly concentrated CO2 emission sources such as lime production
furnaces, and will launch sales starting this April.

Exterior view of CO2 recovery equipment (conceptual image)
Background of Development
There has been an increasing number of inquiries from customers about CO2 recovery in response tothe Japanese government’s CO2 reduction target for FY2030 of 46% compared to FY2013. In order toaddress these types of requests from customers, TNSC has worked on developing CO2 recovery equipmentby harnessing the gas separation and purification technology it has cultivated up until now. The CO2
recovery 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 toreduce CO2 emissions and help to realize a carbon neutral society.
1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 andresults 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) andcan 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 beobtained 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 therecovery and the utilization of CO2 by leveraging our gas supply networks.
CO2 recovery equipment specifications
Recovered CO2 amount

10 tons per day

Recovered CO2 concentration

98%

Raw material CO2 concentration

30%

Equipment dimensions

14.5×5.35×2.75 m[Company Overview]
Taiyo Nippon Sanso Corporation
Business description: Manufacture and sale of various industrial gases such as oxygen, nitrogen, and argon,
LP gas, gas for medical uses, and specialty gases, manufacture and sale of welding equipment andmaterials, gas-related devices, and, air separation equipment, assembly, processing, inspection of electricalcomponents, and equipment maintenance
Established: October 30, 1910
Incorporated: February 4, 2020
Capital: 1.5 billion yen
Shareholder: Nippon Sanso Holdings Corporation (Investment ratio: 100%)
Revenue: 372.0 billion yen*
*Note: This figure shows the revenue of Gas Business in Japan for Nippon Sanso Holdings Corporation inFYE2022
Taiyo Nippon Sanso Corporation
Tnsc.Info@tn-sanso.co.jp

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