Catalyst-TiO(OH) 2 could drastically reduce the energy consumption of CO 2 capture

Qinghua Lai, Sam Q Toan, Mohammed A. Assiri, Huaigang Cheng, Armistead G. Russell, Hertanto Adidharma, Maciej Radosz, Maohong Fan

Research output: Contribution to journalArticle

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Abstract

Implementing Paris Climate Accord is inhibited by the high energy consumption of the state-of-the-art CO 2 capture technologies due to the notoriously slow kinetics in CO 2 desorption step of CO 2 capture. To address the challenge, here we report that nanostructured TiO(OH) 2 as a catalyst is capable of drastically increasing the rates of CO 2 desorption from spent monoethanolamine (MEA) by over 4500%. This discovery makes CO 2 capture successful at much lower temperatures, which not only dramatically reduces energy consumption but also amine losses and prevents emission of carcinogenic amine-decomposition byproducts. The catalytic effect of TiO(OH) 2 is observed with Raman characterization. The stabilities of the catalyst and MEA are confirmed with 50 cyclic CO 2 sorption and sorption. A possible mechanism is proposed for the TiO(OH) 2 -catalyzed CO 2 capture. TiO(OH) 2 could be a key to the future success of Paris Climat e Accord.

Original languageEnglish (US)
Article number2672
JournalNature communications
Volume9
Issue number1
DOIs
StatePublished - Dec 1 2018

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monoethanolamine (MEA)
energy consumption
Carbon Monoxide
sorption
amines
Energy utilization
desorption
catalysts
Catalysts
climate
Ethanolamine
decomposition
Paris
kinetics
Amines
Sorption
Desorption
Climate
Byproducts
Technology

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Lai, Q., Toan, S. Q., Assiri, M. A., Cheng, H., Russell, A. G., Adidharma, H., ... Fan, M. (2018). Catalyst-TiO(OH) 2 could drastically reduce the energy consumption of CO 2 capture Nature communications, 9(1), [2672]. https://doi.org/10.1038/s41467-018-05145-0

Catalyst-TiO(OH) 2 could drastically reduce the energy consumption of CO 2 capture . / Lai, Qinghua; Toan, Sam Q; Assiri, Mohammed A.; Cheng, Huaigang; Russell, Armistead G.; Adidharma, Hertanto; Radosz, Maciej; Fan, Maohong.

In: Nature communications, Vol. 9, No. 1, 2672, 01.12.2018.

Research output: Contribution to journalArticle

Lai, Q, Toan, SQ, Assiri, MA, Cheng, H, Russell, AG, Adidharma, H, Radosz, M & Fan, M 2018, ' Catalyst-TiO(OH) 2 could drastically reduce the energy consumption of CO 2 capture ' Nature communications, vol. 9, no. 1, 2672. https://doi.org/10.1038/s41467-018-05145-0
Lai, Qinghua ; Toan, Sam Q ; Assiri, Mohammed A. ; Cheng, Huaigang ; Russell, Armistead G. ; Adidharma, Hertanto ; Radosz, Maciej ; Fan, Maohong. / Catalyst-TiO(OH) 2 could drastically reduce the energy consumption of CO 2 capture In: Nature communications. 2018 ; Vol. 9, No. 1.
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