Impact analysis of kinetics and dynamics of SO2 and NOx adsorption from flue gases on the geometry of the column with a fixed carbon bed

  • 1 Wroclaw University of Science and Technology, Poland


The purpose of this research paper is to analyse the impact of kinetics and dynamics of sulphur dioxide (IV) and nitric oxide (II) adsorption from the flue gases on the geometry of a column with a fixed carbon bed. Using the following kinetics equation: pseudo-first and pseudo-second-order, Webber-Morris and Elovich and dynamics Langmuir equation, essential operation parameters for activated carbon made from coconut shell modified by copper have been found. Comparison of two schemes (simultaneous adsorption of SO2 and NO after CO2 adsorption and simultaneous adsorption of SO2, NO and CO2) has been done to determine the adsorption’s time, efficiency and a breakthrough curve. Process scaling has been used to evaluate the chances of adsorption flue gas treatment implementation in industrial production. Bed height has been modelled considering the flow of fuel gases for ½ technical scale and flow of fuel gases for large combustion plants. Match factors values have pointed that the research is more accurate for NOx than SO2 adsorption regardless of the operation scenario. To reduce the height of one column, a battery of columns should be applied, e.g. for NO adsorption in one segment and SO2 adsorption in another segment.



  1. Abdulrasheed A. A., Jalil A. A., Triwahyono S., Zaini M. A. A, Gambo Y., Ibrahim M.: Surface modification of activated carbon for adsorption of SO2 and NOx: A review of existing and emerging technologies, Renewable and Sustainable Energy Reviews 94 (2018)
  2. Daud W. Ali W.: Comparison on pore development of activated carbon produced from palm shell and coconut shell, Bioresource Technology 93 (2004)
  3. Zhou X., Yi H., Tang X., Deng H., Liu H.: Thermodynamics for the adsorption of SO2, NO and CO2 from flue gas on activated carbon fiber, Chemical Engineering Journal 200–202 (2012)
  4. Gabruś E., Downarowicz D.: Odwadnianie c iekłego etanolu na adsorbentach zeolitowych, Inż. Ap. Chem. 53-4 (2014)
  5. Płaziński W., Rudziński W.: Kinetyka adsorpcji na granicy faz roztwór/ciało stałe, Wiadomości chemiczne 65 (2011)
  6. Largitte L., Pasquier R.: A review of the kinetics adsorption models and their application to the adsorption of lead by an activated carbon, Chemical Engineering Research and Design 109 (2016)
  7. Wu F., Tseng R., Juang R.: Characteristics of Elovich equation used for the analysis of adsorption kinetics in dye-chitosan systems, Chemical Engineering Journal 150 (2009)
  8. Yi H., Zuo Y., Liu H., Tang X., Zhao S., Wang Z., Gao F., Zhang B.: Simultaneous Removal of SO2, NO, and CO2 on Metal- Modified Coconut Shell Activated Carbon, Water Air Soil Pollut (2014)
  9. Zevenhoven, Kilpinen: Control of pollutants in flue gases and fuel gases, 2001
  10. Richter, E., Knoblauch, K., Jintgen, H.: Mechanisms and kinetics of SO2 adsorption and NOx reduction on active coke. Gas Separation & Purification, 35–43 (1987)

Article full text

Download PDF