A study on the carbon dioxide recovery from 2 ton-CO2/day pilot plant at LNG based power plant

Seungmoon Lee, Sanjeev Maken, Jin Won Park, Ho Jun Song, Jong Jin Park, Jae Goo Shim, Jun Han Kim, Hee Moon Eum

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Abstract

A pilot plant of 2 ton-CO2/day for CO2 recovery from flue gas emitted from 250 MW LNG based power plant was tested with aqueous absorbents. The absorbent tested were of different nature such as primary amine (MEA), blend of primary, secondary, tertiary and sterically hindered amine such as MDEA + HMDA, AEPD + DPTA, and TIPA + DPTA. We have studied the CO2 recovery as function of temperature, concentration, and flow rate of absorbent, pressure and temperature of stripper, and flow rate and temperature of flue gas. It was observed that while CO2 recovery increases with increase in flow rate and concentration of absorbent, it decreases with increase in temperature and flow rate of flue gas. The CO2 recovery ratio increases with increase in stripper temperature and decrease in stripper pressure. CO2 loading (mol CO2/mol amine) also decreases with increase in stripper temperature. For the absorbent flow rate greater than 2.4 N m3/h, the carbon dioxide recovery ratio follows the sequence: MEA > MDEA + HMDA > AEPD + DPTA > TIPA + DPTA.

Original languageEnglish
Pages (from-to)1734-1739
Number of pages6
JournalFuel
Volume87
Issue number8-9
DOIs
Publication statusPublished - 2008 Jul

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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    Lee, S., Maken, S., Park, J. W., Song, H. J., Park, J. J., Shim, J. G., Kim, J. H., & Eum, H. M. (2008). A study on the carbon dioxide recovery from 2 ton-CO2/day pilot plant at LNG based power plant. Fuel, 87(8-9), 1734-1739. https://doi.org/10.1016/j.fuel.2007.07.027