Adsorption of carbon dioxide on hydrotalcite-like compounds of different compositions

Aschenbrenner, Ortrud; McGuire, P.A.; Alsamaq, Suzanne; Wang, Jiawei; Supasitmongkol, Somsak; Al‐Duri, Bushra; Styring, Peter; Wood, Joseph

doi:10.1016/j.cherd.2010.09.019

Cited by 77 publications

(40 citation statements)

References 49 publications

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“…These results are really interesting if they are compared to other inorganic materials. In this sense, the highest CO2 adsorption capacity shown in this work is slightly lower than the value reported by Aschenbrenner et al (2011) with hydrotalcitelike compounds. However, they need to supply much energy in the regeneration step, because desorption takes place at 300°C.…”

Section: Breakthrough Experimentscontrasting

confidence: 46%

Biomass Waste Carbon Materials as adsorbents for CO2 Capture under Post-Combustion Conditions

et al. 2016

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A series of porous carbon materials obtained from biomass waste have been synthesized, with different morphologies and structural properties, and evaluated as potential adsorbents for CO2 capture in post-combustion conditions. These carbon materials present CO2 adsorption capacities, at 25°C and 101.3 kPa, comparable to those obtained by other complex carbon or inorganic materials. Furthermore, CO2 uptakes under these conditions can be well correlated with the narrow micropore volume, derived from the CO2 adsorption data at 0°C ( ) V CO 2 DR . In contrast, CO2 adsorption capacities at 25°C and 15 kPa are more related to only pores of sizes lower than 0.7 nm. The capacity values obtained in column adsorption experiments were really promising. An activated carbon fiber obtained from Alcell lignin, FCL, presented a capacity value of 1.3 mmol/g (5.7%wt). Moreover, the adsorption capacity of this carbon fiber was totally recovered in a very fast desorption cycle at the same operation temperature and total pressure and, therefore, without any additional energy requirement. Thus, these results suggest that the biomass waste used in this work could be successfully valorized as efficient CO2 adsorbent, under post-combustion conditions, showing excellent regeneration performance.

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Section: Breakthrough Experimentscontrasting

confidence: 46%

Biomass Waste Carbon Materials as adsorbents for CO2 Capture under Post-Combustion Conditions

et al. 2016

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“…Different materials like hydrotalcites [140][141][142][143][144], CaO-based materials [145][146][147][148][149], lithium zirconates [150][151][152][153][154] and lithium silicates [155][156][157][158][159], among others, have been reported in the literature as CO2 sorbents for SERs applications. It is expected from a good CO2 sorbent to couple in a GSR process to present high CO2 capture capacity and selectivity at moderated temperatures (300-500 ºC), good regenerability (adequate sorptiondesorption kinetics), good hydrothermal and mechanical stability and low-cost [160][161][162][163].…”

Section: Co2 Sorbentsmentioning

confidence: 99%

“…Hydrotalcites are a family of clay minerals that consist of a double-layered hydroxide structure with the general formula [M [143] observed that NiMgAl hydrotalcite presented 53% more adsorption capacity than NiMgAlFe hydrotalcite and high stability. A comparison between a commercial hydrotalcite and two potassium and potassium-sodium containing hydrotalcites allowed to conclude that the last one presented the highest adsorption capacity while the potassium containing hydrotalcite presented no significative deactivation after more than 50 cycles of operation [142].…”

Section: Co2 Sorbentsmentioning

confidence: 99%

Challenges and strategies for optimization of glycerol steam reforming process

Silva

Soria

Madeira

2015

Renewable and Sustainable Energy Reviews

202

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The steam reforming of the main biodiesel by-product, glycerol, has been catching up the interest of the scientific community in the last years. The use of glycerol for hydrogen production is an advantageous option not only because glycerol is renewable but also because it's use would lead to the decrease of the price of biodiesel, thus making it more competitive. Consequently, the use of biodiesel at large scale would significantly reduce CO2 emissions comparatively to fossil fuels. Moreover, hydrogen itself is seen as a very attractive clean fuel for transportation purposes.Therefore, the industrialization of the glycerol steam reforming (GSR) process would have a tremendous global environmental impact. In the last years, intensive research regarding GSR thermodynamics, catalysts, reaction mechanisms and kinetics, and innovative reactor configurations (sorption enhanced reactors (SERs) and membrane reactors (MRs)) has been done, aiming for improving the process effectiveness. In this review, the main challenges and strategies adopted for optimization of GSR process are addressed, namely the GSR thermodynamic aspects, the last developments on catalysis and kinetics, as well as the last advances on GSR performed in SERs and MRs.

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“…a lower interaction between NiO and the support and (ii) a slight shift of the second peak to higher temperatures, due to a strengthened interaction inside Mg(Ni,Al)O phase [30,31]. Other authors have claimed that low temperature reduction peak is due to Ni occupying surface sites in the MgO lattice [32]. Since lower temperatures were recorded when Mg/Al molar ratio increased, suggesting a strengthened interaction inside the mixed oxide, this hypothesis is not plausible in our case.…”

Section: Catalysts Characterizationmentioning

confidence: 93%

Dry reforming of methane to syngas over La-promoted hydrotalcite clay-derived catalysts

Serrano-Lotina

Martín

Folgado

et al. 2012

International Journal of Hydrogen Energy

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Adsorption of carbon dioxide on hydrotalcite-like compounds of different compositions

Cited by 77 publications

References 49 publications

Biomass Waste Carbon Materials as adsorbents for CO2 Capture under Post-Combustion Conditions

Biomass Waste Carbon Materials as adsorbents for CO2 Capture under Post-Combustion Conditions

Challenges and strategies for optimization of glycerol steam reforming process

Dry reforming of methane to syngas over La-promoted hydrotalcite clay-derived catalysts

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