Evaluation of the heat duty of catalyst-aided amine-based post combustion CO 2 capture

Srisang, Wayuta; Pouryousefi, Fatemeh; Osei, Priscilla; Decardi‐Nelson, Benjamin; Akachuku, Ananda; Tontiwachwuthikul, Paitoon; Idem, Raphael

doi:10.1016/j.ces.2017.01.049

Cited by 88 publications

(103 citation statements)

References 16 publications

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“…Qualitatively consistent with the Bhatti et al work 15 , TiO 2 also barely changes the CO 2 sorption breakthrough curve. Also, recently reported H-ZSM5 13,14 does not change CO 2 breakthrough curve much. However, TiO(OH) 2 significantly increases the effective sorption period in which capturing 90% CO 2 in flue gas is realized as targeted by U.S. Department of Energy (DOE) 16 .…”

Section: Resultsmentioning

confidence: 65%

“…Our group have showed that FeOOH and TiO(OH) 2 could be used as catalytic supports to reduce the activation energy of the NaHCO 3 decomposition reaction and then enhance the decomposition rate 11,12 . Idem et al reported that H-ZSM and γ-Al 2 O 3 could be used to accelerate the amine based solvent regeneration and thus reducing the heat duty for amine regeneration 13,14 . Bhatti et al 15 recently reported an inspiring finding that transition metal oxides could affect spent monoethanolamine (MEA) regeneration.…”

Section: Introductionmentioning

confidence: 99%

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Catalyst-TiO(OH)2 could drastically reduce the energy consumption of CO2 capture

et al. 2018

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Implementing Paris Climate Accord is inhibited by the high energy consumption of the state-of-the-art CO2 capture technologies due to the notoriously slow kinetics in CO2 desorption step of CO2 capture. To address the challenge, here we report that nanostructured TiO(OH)2 as a catalyst is capable of drastically increasing the rates of CO2 desorption from spent monoethanolamine (MEA) by over 4500%. This discovery makes CO2 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 CO2 sorption and sorption. A possible mechanism is proposed for the TiO(OH)2-catalyzed CO2 capture. TiO(OH)2 could be a key to the future success of Paris Climat e Accord.

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Section: Resultsmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Catalyst-TiO(OH)2 could drastically reduce the energy consumption of CO2 capture

et al. 2018

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“…The results for sensible heat, heat of evaporation, and heat of reaction are listed in Table . The heat duty and average desorption rate were also compared with previous reported results by Liu, and Srisang, where solid acid catalysts were added to reduce the energy consumption of the MEA regeneration process. The results showed that the addition of 5 g HZSM‐5 in the solution could save 30.2% of sensible heat, reduce vapor consumption by 18.7%, and total energy consumption by 23.3%.…”

Section: Resultsmentioning

confidence: 98%

“…7 Srisang et al designed a full-cycle CO 2 absorption-desorption device using the HZSM-5 catalyst for MEA regeneration. 8 The results showed that the heat duty could be reduced by 42%. These studies on using catalysts contain elaborate research and are distinguished works but the application of solid acid catalyst still faces the problem that the acidity of the catalyst is not stable in an alkaline solution.…”

Section: Introductionmentioning

confidence: 98%

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On the role of solid particles in CO₂ bubble nucleation for solvent regeneration of MEA‐based CO₂ capture technology

Liu

Tang

et al. 2019

Greenhouse Gases

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Monoethanolamine (MEA) solution has been used widely in the post‐combustion CO2 capture process; however, the high heat duty and reaction temperature (e.g. 125°C) for MEA regeneration leads to a high energy requirement (nearly 70–80% of the total running cost). We report the use of solid particles (H‐Zeolite Socony Mobile‐5 (HZSM‐5), quartz, and activated carbon) to facilitate the mass transfer of CO2 bubble nucleation and enhance the CO2 desorption rate. The results show that the mass transfer of CO2 from liquid phase to gas phase is the rate‐determining step, rather than the chemical reaction. The addition of HZSM‐5 particles in the solution significantly enhanced CO2 bubble nucleation by providing nucleation sites and gas cavities, leading to an average CO2 desorption rate enhancement of 43.2%, and an energy consumption reduction of 23.3%. This process also operated at ∼95°C, which is a much lower temperature than that used in the commercial process and is feasible for industrial applications. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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SO₄²⁻/ZrO₂ supported on γ‐Al₂O₃ as a catalyst for CO₂ desorption from CO₂‐loaded monoethanolamine solutions

et al. 2018

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In this work, the composite catalysts, SO42/ZrO2/γ‐Al2O3 (SZA), with different ZrO2 and γ‐Al2O3 mass ratios were prepared and used for the first time for the carbon dioxide (CO2)‐loaded monoethanolamine (MEA) solvent regeneration process to reduce the heat duty. The regeneration characteristics with five catalysts (three SZA catalysts and two parent catalysts) of a 5 M MEA solution with an initial CO2 loading of 0.5 mol CO2/mol amine at 98°C were investigated in terms of CO2 desorption performance and compared with those of a blank test. All the catalysts were characterized using X‐ray diffraction, Fourier transform infrared spectroscopy, N2 adsorption–desorption experiment, ammonia temperature programmed desorption, and pyridine‐adsorption infrared spectroscopy. The results indicate that the SZA catalysts exhibited superior catalytic activity to the parent catalysts. A possible catalytic mechanism for the CO2 desorption process over SZA catalyst was proposed. The results reveal that SZA1/1, which possesses the highest joint value of Brφnsted acid sites (BASs) and mesopore surface area (MSA), presented the highest catalytic performance, decreasing the heat duty by 36.9% as compared to the catalyst‐free run. The SZA1/1 catalyst shows the best catalytic performance as compared with the reported catalyst for this purpose. Moreover, the SZA catalyst has advantages of low cost, good cyclic stability, easy regeneration and has no effect on the CO2 absorption performance of MEA. © 2018 American Institute of Chemical Engineers AIChE J, 64: 3988–4001, 2018

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Evaluation of the heat duty of catalyst-aided amine-based post combustion CO 2 capture

Cited by 88 publications

References 16 publications

Catalyst-TiO(OH)2 could drastically reduce the energy consumption of CO2 capture

Catalyst-TiO(OH)2 could drastically reduce the energy consumption of CO2 capture

On the role of solid particles in CO₂ bubble nucleation for solvent regeneration of MEA‐based CO₂ capture technology

SO₄²⁻/ZrO₂ supported on γ‐Al₂O₃ as a catalyst for CO₂ desorption from CO₂‐loaded monoethanolamine solutions

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Evaluation of the heat duty of catalyst-aided amine-based post combustion CO 2 capture

Cited by 88 publications

References 16 publications

Catalyst-TiO(OH)2 could drastically reduce the energy consumption of CO2 capture

Catalyst-TiO(OH)2 could drastically reduce the energy consumption of CO2 capture

On the role of solid particles in CO2 bubble nucleation for solvent regeneration of MEA‐based CO2 capture technology

SO42−/ZrO2 supported on γ‐Al2O3 as a catalyst for CO2 desorption from CO2‐loaded monoethanolamine solutions

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On the role of solid particles in CO₂ bubble nucleation for solvent regeneration of MEA‐based CO₂ capture technology

SO₄²⁻/ZrO₂ supported on γ‐Al₂O₃ as a catalyst for CO₂ desorption from CO₂‐loaded monoethanolamine solutions