Blar i NTNU Open på forfatter "Majeed, Hammad"
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Characterization and modelling of aerosol droplet in absorption columns
Majeed, Hammad; Knuutila, Hanna K; Hillestad, Magne; Svendsen, Hallvard Fjøsne (Journal article, 2017)Formation of aerosols can cause serious complications in industrial exhaust gas cleaning processes. Small mist droplets and fog formed can normally not be removed in conventional demisting equipment because their submicron ... -
Characterization of aerosol emissions from CO2 capture plants treating various power plant and industrial flue gases
Majeed, Hammad; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2018)Undesired aerosol formation in gas–liquid contact devices has been a well-known phenomenon in the chemical industry for several decades and can cause severe problems in industrial gas cleaning processes. Several studies ... -
Effect of Amine Volatility on Aerosol Droplet Development in Absorption Columns
Majeed, Hammad; Knuutila, Hanna K; Hillestad, Magne; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2017)In absorption processes aerosols are generated by spontaneous condensation or desublimation processes in supersaturated gas phases. Amine volatility is a vital screening parameter for amines to be used in CO2 capture. ... -
Effect of water wash on mist and aerosol formation in absorption column
Majeed, Hammad; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2018)Environmental issues regarding solvent emissions can hamper the realization of state of the art post combustion CO2 capture (PCCC). These emissions stem from the emitted flue gas from which CO2 has been recovered and are ... -
Gas phase amine depletaion created by aerosol formation and growth
Majeed, Hammad; Knuutila, Hanna K; Hillestad, Magne; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2017)Aerosols are systems of droplets or wet particles suspended in gases. In post combustion CO2 absorption systems aerosols can be formed by spontaneous phase transitions in supersaturated gas phases or by droplets or particles ... -
Kinetics of CO2 Absorption by Aqueous 3-(methylamino)propylamine Solutions: Experimental Results and Modeling
Monteiro, Juliana Garcia Moretz-Sohn; Hussain, Saddam; Majeed, Hammad; Mba, Emmanuel; Hartono, Ardi; Knuutila, Hanna; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2014-07-09)Experimental data and a model for the initial kinetics of CO2 into 3-(methylamino)propylamine (MAPA) solutions are presented in work. MAPA has been tested as an activator for tertiary amines with encouraging results. The ... -
Kinetics of CO2 Absorption by Aqueous 3-(methylamino)propylamine Solutions: Experimental Results and Modeling
Monteiro, Juliana Garcia Moretz-Sohn; Hussain, Saddam; Majeed, Hammad; Mba, Emmanuel; Hartono, Ardi; Knuutila, Hanna; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2014) -
Modelling of Composition and Growth of Aerosol Droplets in Absorption Columns
Majeed, Hammad (Doctoral theses at NTNU;2017:348, Doctoral thesis, 2017)To meet future energy demand and at the same time reduce our carbon footprint are main challenges of the current era. The global CO2 concentration has been increasing since the beginning of the industrial revolution and ... -
Predicting aerosol size distribution development in absorption columns
Majeed, Hammad; Hillestad, Magne; Knuutila, Hanna K; Svendsen, Hallvard Fjøsne (Journal article; Peer reviewed, 2018)There are two main mechanisms for amine emissions from absorption columns. The first is connected to the volatility of amine, determining the gaseous concentration. The second mechanism is via aerosol droplets containing ... -
Reactive Absorption of CO2 in Single and Blended Amine Systems
Majeed, Hammad (Master thesis, 2013)Global warming scenario is pretty grim and is a well-known worldwide concern, most likely caused by increasing concentrations of CO2 and other greenhouse gases in the earth?s atmosphere due to human activities. CO2 absorption ...