A feasible process tomography and spectroscopy measurement system to determine carbon dioxide absorption

作者：Wang Mi^*; Ramskill Nicholas P; Barns Stuart; Raynel Guillaume; Qiu Changhua; Rayner Christopher M

来源：Flow Measurement and Instrumentation, 2013, 31: 77-85.

DOI：10.1016/j.flowmeasinst.2012.09.005

• Carbon capture and storage
• Carbon dioxide absorption
• Monoethanolamine
• Electrical impedance tomography
• Electrical impedance spectroscopy

The present study has demonstrated that Electrical Impedance Spectroscopy (EIS) and Electrical Impedance Tomography (EIT) are viable measurement techniques to be used in the measurement and monitoring of carbon dioxide absorption across the scales. %26lt;br%26gt;EIS is able to provide information regarding the absorption of carbon dioxide gas on the molecular level hence can be used to search for the optimal system by studying the kinetics of the absorption process and measuring the solubility of carbon dioxide in different solvents of interest. %26lt;br%26gt;EIT, however, is more suited to studying the absorption on the macro-scale of the process in terms of aspects such as homogeneity of absorption thus can be used to look at the design of the absorption columns themselves. In the present study the experiments were restricted to studying the absorption of carbon dioxide in water as it was found that the conductivity of industrially relevant solvents such as monoethanolamine was too high for use with the conventional EIT hardware.

• 出版日期2013-6