Absorption of Carbon Dioxide into Ionic Liquid of 2-Hydroxy Ethylammonium Lactate

作者：Hwang Bung Jin; Park Sang Wook^*; Park Dae Won; Oh Kwang Joong; Kim Seong Soo

来源：Separation Science and Technology, 2009, 44(7): 1574-1589.

DOI：10.1080/01496390902775778

• Absorption
• carbon dioxide
• 2-hydroxy ethylammonium lactate
• ionic liquid

Absorption of carbon dioxide into organic solvents such as DMA, NMP, DMSO, and DMF with the 2-hydroxy ethylammonium lactate (HEAL) ionic liquid was investigated using a batch stirred tank with a plane of gas-liquid interface in a range of 0-2.0 kmol/m(3) of HEAL and 298-318 K at 101.3 kPa. The absorption of CO(2) was analyzed with the film model accompanied by the zwitterion mechanism of CO(2) with HEAL. The proposed model fits the experimental data of the enhancement factor due to the ready, chemical absorption of CO(2) in different solvents, temperatures, and HEAL concentrations. The reaction rate constant of CO(2) with HEAL was correlated linearly with the solubility parameter of the solvent.

• 出版日期2009