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Concomitant removal...
Concomitant removal of NOx and SOx from a pressurized oxy-fuel combustion process using a direct contact column
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- Tumsa, Tefera Zelalem (författare)
- Korea Institute of Industrial Technology Evaluation and Planning,University of Science and Technology (UST)
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- Lee, See Hoon (författare)
- Chonbuk National University
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- Normann, Fredrik, 1982 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa fler...
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- Andersson, Klas, 1977 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ajdari, Sima, 1985 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Yang, Won (författare)
- University of Science and Technology (UST),Korea Institute of Industrial Technology Evaluation and Planning
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(creator_code:org_t)
- Elsevier BV, 2018
- 2018
- Engelska.
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Ingår i: Chemical Engineering Research and Design. - : Elsevier BV. - 0263-8762 .- 1744-3563. ; 131, s. 626-634
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- The simultaneous removal of NO x and SO x using a direct contact column has potential for efficient treatment of the flue gases arising from pressurized oxy-fuel combustion. This study focuses on a parametric analysis of the efficiency of NO x and SO x removal from the flue gas of an oxy-fuel combustion process using an Aspen Plus direct contact column model. The chemistry implemented in this model reflects the state-of-the-art NO x and SO x reaction mechanisms, with particular emphasis on the liquid-phase chemistry, including pH-dependency. The effects of pressure, water flow rate, and recycle ratio on the removal efficiencies of NO x and SO x were evaluated. The evaluation was conducted based on the base case pressurized (15 bar) flue gas with a feed rate of 120 kg/s and inlet temperature of 40 °C before it was supplied to the column. NO x removal efficiency increased from 70% to 97% when the pressure increased from 15 bar to 30 bar, whereas 99.9% of the SO 2 was absorbed from the flue gas at 15 bar. We show that the removal efficiency is pH-sensitive and it is directly influenced by the recycle ratio and liquid-to-gas ratio (L/G). As the L/G ratio was increased, the removal efficiency of SO x and NO x increased. On the other hand, when the recycle ratio of bottom liquid was increased, the removal efficiency of SO x and NO x decreased.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioenergi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioenergy (hsv//eng)
Nyckelord
- Pressurized combustion
- NOx
- Emissions
- SOx
- Oxy-fuel combustion
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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