Carbon Dioxide Decomposition and Oxygen Generation Via SOEC

2013 ◽  
Vol 50 (49) ◽  
pp. 129-136
Author(s):  
H. Guo ◽  
B. Kang ◽  
A. Manivannan
2019 ◽  
Vol 6 (4) ◽  
pp. 557-564 ◽  
Author(s):  
Dilshan Premathilake ◽  
Ronald A. Outlaw ◽  
Ronald A. Quinlan ◽  
Charles E. Byvik

2017 ◽  
Vol 28 (5) ◽  
pp. 599-610
Author(s):  
Shu Wang ◽  
Tian Zhang ◽  
Longzhe Jin

Potassium superoxide-based oxygen supply systems demonstrate a tremendous potential for applications associated with mine emergency rescue. In this study, the air revitalization performance of a potassium superoxide plate operating under natural convection conditions was investigated by a series of passive tests in a sealed chamber. Reaction resistance analysis based on experimental data revealed that increasing air temperature and humidity accelerates oxygen generation but reduces the system respiratory quotient as a result of the increased resistance of internal diffusion. Increasing the amount of plates or using them in combination with a carbon dioxide absorption curtain is a practical, effective method for meeting requirements of both oxygen generation rate and system respiratory quotient in underground refuge. Kinetics model that predicted the mean oxygen generation rate, carbon dioxide absorption rate, system respiratory quotient and total thermal output (Q) was also derived from experimental data in this study. Predicted results were found to be in good agreement with experimental data. The proposed model can aid in the design of air revitalization systems used in refuge stations for underground mines.


2019 ◽  
Vol 11 (33) ◽  
pp. 173-179 ◽  
Author(s):  
Sean R. Bishop ◽  
Keith Duncan ◽  
Helena Hagelin-Weaver ◽  
Luke Neal ◽  
Jose Sanchez ◽  
...  

Author(s):  
Kamau Wright

High voltage plasma-based technologies have the ability to impact multiple fields from medicine to engineering. The goal of the most recent study was to investigate the efficacy of a novel high voltage plasma system to generate oxygen (O2) from carbon dioxide (CO2) through dissociation. The general endothermic plasma-chemical process of CO2 decomposition is presented, with CO2 destruction accompanying production of oxygen (and carbon monoxide) at a mole ratio of 2 to 1. A high voltage plasma reactor was developed for this purpose. SEM analysis was conducted on electrodes used for plasma discharges, to better elucidate characteristics of the plasma. CO2 gas samples were analyzed using an FTIR spectrometer. Baseline scans were taken of CO2 inside the reactor before plasma power was turned on; subsequent scans were taken after 10 min of plasma treatment. Results of FTIR analysis presented here have indicated a 30% decrease in CO2 concentration upon application of the developed plasma reactor. This paper reports on various aspects of the instrumented high voltage plasma reactor; and experimental results which further explore the capability to decrease CO2 concentrations in various environments, while also generating O2.


1994 ◽  
Author(s):  
N.M. Samsonov ◽  
N. S. Farafonov ◽  
L. I. Gavrilov ◽  
V. A. Korolev ◽  
V. A. Naumov ◽  
...  

1998 ◽  
Author(s):  
Nguyen Minh ◽  
Brandon Chung ◽  
Rajiv Doshi ◽  
Kurt Montgomery ◽  
Estela Ong ◽  
...  

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