Journal
CHEMICAL ENGINEERING JOURNAL
Volume 338, Issue -, Pages 450-456Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.01.061
Keywords
Bubbling reactor; Magnetic field; Mass transfer; Ammonia-based; CO2; Absorption
Categories
Funding
- New Generation of Coal Conversion and Power Technology Facing the Sino-US Advanced Coal Technical Cooperation [2010DFA24580-501]
- National Science and Technology Supporting Program [2014BAA02B03/2014BAA07B03]
- National Natural Science Foundation Innovation Research Group: Heat Transfer and Flow Control [51421063]
- International Technical Cooperation Projects of the People's Republic of China
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Using double film theory, the mass transfer in the absorption process in ammonia-based CO2 capture under a static magnetic field was investigated in a bubbling reactor. The effect of the gas flow rate, CO2 inlet concentration, ammonia concentration, and reaction temperature on the interfacial area and mass transfer coefficients were investigated. Under a static magnetic field, the volumetric mass transfer coefficient of CO2 absorption for an ammonia concentration of 10 wt% reached 18.7x10(5) mol/(m(3) s Pa), which was 15.3% higher than that achieved without the magnetic field. By introducing the magnetic field, the estimated interfacial area per unit volume increased from 177.44 to 199.2m(2)/m(3) and the CO2 absorption process was promoted. In addition, the overall volumetric mass transfer coefficient and estimated interfacial area per unit volume were improved.
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