Abstract The CO2 recovery from industrial stream using Alkanolamine solutions is applied since several decades. Khol and Nielsen [1] have provided a comprehensive summery of the theory and the technological aspects. Recently, Gabrielsen [2] has studied the CO2 capture from coal fired plants. He pointed out the fact that the process was usually used for applications on a much smaller scale.
Thus, this work proposes to evaluate the sustainability of CO2 capture from industrial incinerator fumes by Alkanolamine solutions. The amounts of the streams are similar to the scale studied by Gabrielsen (severals tones of CO2 per hour). Nevertheless, the fumes composition is characterized by low CO2 fraction which involves carrying out a technological and an economical study. In this way, the energy supplying will be coupled with the incinerator furnace. The high value of the O2 fraction leads us to study the amines degradation in our conditions (kinetics, degradation products, impact of the O2 partial pressure,…) connected disturbances. Moreover, the entrance stream contains NOX, SOX, halogens and micro-particles. The NOX, SOX and halogen form salts with the alkanoloamines and micro-particles have a significant impact on the mass transfer. Therefore, we evaluate the connected disturbances and we explore the ways to clean the polluted solutions.
The work strategy moves through three main stages involving a systematic studying of parameters: a laboratory pilot scale (1/1000), a pilot plant scale (1/50) and finally the design of the whole unit.
This paper presents experiments and results from the laboratory pilot scale.
References
Arthur Khol, Richard Nielsen, Gas purification (fifth edition), Gulf Publishing Company. ISBN 0-88415-220-0, (1997)
Jostein Gabrielsen, CO2 capture from coal fired power plants, Ph.D. Thesis, Department of chemical engineering, Technical University of Denmark. ISBN 978-87-91435-46-3, (2007)