MgO-loaded porous carbon for carbon dioxide sorption: Study on cyclic sorption–regeneration

Przepiórski, Jacek; Czyżewski, Adam; Toyoda, Masahiro; Tsumura, Tomoki; Pietrzak, Robert; Morawski, Antoni W.

doi:10.1016/j.ijggc.2012.06.005

Cited by 8 publications

(1 citation statement)

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“…2 wt % decrease in the mass of the hybrid sorbent accompanying the regeneration step, Figure a, can be considered as owing to partial gasification of char by CO 2 being released during treatment at high temperature. Such an effect was studied in detail in our previous works dealing with sorption of CO 2 on porous carbon materials loaded with metal oxide. , …”

Section: Results and Discussionmentioning

confidence: 99%

MgO/CaO-Loaded Activated Carbon for Carbon Dioxide Capture: Practical Aspects of Use

Przepiórski

Czyżewski

Pietrzak

et al. 2013

Ind. Eng. Chem. Res.

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Porous carbons loaded with CaO and MgO were prepared through a one-step process from mixtures of poly(ethylene terephthalate) and dolomite mineral. Obtained hybrid materials were examined as sorbents for CO 2 gas contained in air. The influence of pore structure, loadings of the oxides, moisture, and temperature on the efficiency of gas removal is presented and discussed. Performance of the materials during CO 2 capture was confirmed to be influenced by all mentioned factors. As a rule, efficiency of CO 2 removal increased along with loading of the oxides. CO 2 uptake increased also with moisture content and temperature of the bed. On the basis of attained results, optimal parameters for operational use are suggested and probable mechanisms of the CO 2 removal from dry and humid air are proposed. Cyclic sorption−desorption experiments confirmed capability of the material for several-times use. Superior performance of the hybrid materials over a mixture of CaO and MgO is confirmed and discussed.

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Section: Results and Discussionmentioning

confidence: 99%