Evaluation of the Quantity of CO2Absorbed by an Aqueous Amine Solution

User Benefits

- Combining the CGT-7100 and the TOC-L can be used to obtain information useful for the development of CO₂ separation and recovery techniques using aqueous amine solutions, which is indispensable for carbon recycling. - The CGT-7100 is compatible with a wide range of sample gas flowrates, so it can be utilized for a variety of tests and evaluations at scales ranging from laboratories to factories. - The concentration of inorganic carbon like the dissolved CO₂ and HCO₃^- ions in CO₂ absorption liquids can be measured with the TOC-L.

Introduction

The search for techniques for the separation, recovery, reuse, and storage of CO₂ is being pursued energetically as a means of attaining a carbon neutral society. Various physical and chemical approaches are being investigated for CO₂ separation and recovery, one of which is technology that utilizes aqueous amine solutions. In addition to quickly reacting with CO₂, the amines playing a leading part in this technology must provide low cost CO₂ recovery after absorption, as well as excellent stability and safety. Accordingly, research and development is being performed with the aim of achieving better characteristics. Against this background, this article introduces CO₂ absorption tests using an aqueous amine solution using the Shimadzu CGT- 7100 Transportable Gas Analyzer and the Shimadzu TOC-L Total Organic Carbon Analyzer.

November 2, 2021 GMT