Investigation into potential synergy between power generation, cement manufacture and CO2 abatement using the calcium looping cycle

Dean, Charles C.; Dugwell, D. R.; Fennell, Paul S.

doi:10.1039/c1ee01282g

Cited by 116 publications

(77 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…19,22,24,33,34 The theoretical synergy of CaL with cement manufacture has been investigated in previous simulation works and lab scale studies. 11,[13][14][15][17][18][19][21][22][23][24][25][26][27][28]30 However, hardly any experimental information on the performance of the raw meals as CO 2 sorbents in CaL systems is available in the literature. Only Pathi et al 21 have carried out cyclic experiments in a thermogravimetric analyzer (TGA) to study the effect of SiO 2 , Al 2 O 3 , and Fe 2 O 3 on the CO 2 carrying capacity of the CaO present in raw meals.…”

Section: ■ Introductionmentioning

confidence: 99%

CO₂ Carrying Capacities of Cement Raw Meals in Calcium Looping Systems

et al. 2017

View full text Add to dashboard Cite

Calcium looping, CaL, is an emerging CO 2 capture technology that is of special interest for use in cement plants, as it offers the possibility of exploiting several energy and material synergies. In this work, the CO 2 carrying capacity of calcined raw meal materials for cement plants has been investigated with thermogravimetric equipment in a wide range of testing conditions. When calcination was carried out at high temperatures and over long times, some raw meals display a sharp decrease in their subsequent CO 2 capture capacity compared to their limestone counterparts, while others perform as expected from their CaO content. XRD observations of calcined samples confirmed the formation of Ca 2 SiO 4, i.e., belite, as the main deactivation agent, since belite formation removes active CaO for CO 2 capture during the carbonation stage. The extent of belite formation was found to be greatly influenced by the nature of the raw meal (in particular by the level of aggregation of Ca and Si atoms in the material), by the calcination temperature, by reaction atmosphere, and by the duration of the calcination stage. The screening of conditions to minimize belite formation indicates that calcination time should be below 1 min, at the typically high calcination temperatures required in CaL systems (i.e., slightly over 900°C), thus ensuring that the CO 2 carrying capacity of these raw meals is kept at a level as close as possible to the value in equivalent materials with the same CaCO 3 content.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

CO₂ Carrying Capacities of Cement Raw Meals in Calcium Looping Systems

et al. 2017

View full text Add to dashboard Cite

show abstract

“…This reversible phase change leads to predictable and repeatable volumetric changes within the sorbent particles, enabling the microporous channels formed during calcination to be reopened, thereby resisting the effects of sintering. Additionally, a C2S support is comprised of elements already found in cement and at similar concentrations, which enables the spent sorbent to retain significant value to the cement industry [23] [9] unlike the addition of other typical supports such as Al2O3 or ZrO2.…”

Section: Introductionmentioning

confidence: 99%

Degradation study of a novel polymorphic sorbent under realistic post-combustion conditions

Clough

Boot-Handford

Zhao

et al. 2016

Fuel

Self Cite

View full text Add to dashboard Cite

“…So far, there have been no significant effects on the cement quality noted by pre-using the CaO to capture CO 2 [29]; in fact (and as expected), the ratio of alite to belite in the cement (a crude measure of the cement quality) formed improved with increasing cycles of calcination and carbonation: see Fig. 5, which compares the alite/belite ratio for cases with and without the addition of coal to effect the calcination reaction.…”

Section: Cementmentioning

confidence: 99%

“…The cement industry is by nature cautious, which is understandable given the consequences if the cement does not perform to the required standard. Current research at Imperial College [29] is investigating the likely build-up of trace elements during repeated cycles of calcination and carbonation for CO 2 capture from cement Fig. 4 demonstrates the steps undertaken during the testing of cement produced from spent sorbent at a laboratory scale.…”

Section: Cementmentioning

confidence: 99%

CCS from industrial sources

Fennell

Florin

Napp

et al. 2012

Sustainable Technologies, Systems &Amp; Policies

View full text Add to dashboard Cite

The literature concerning the application of CCS to industry is reviewed. Costs are presented for different sectors including ''high purity'' (processes which inherently produce a high concentration of CO 2 ), cement, iron and steel, refinery and biomass. The application of CCS to industry is a field which has had much less attention than its application to the electricity production sector. Costs range from less than $ 2011 10/tCO 2 up to above $ 2011 100/tCO 2 . In the words of a synthesis report from the United Nations Industrial Development Organisation (UNIDO) ''This area has so far not been the focus of discussions and therefore much attention needs to be paid to the application of CCS to industrial sources if the full potential of CCS is to be unlocked''.

show abstract

Investigation into potential synergy between power generation, cement manufacture and CO2 abatement using the calcium looping cycle

Cited by 116 publications

References 7 publications

CO₂ Carrying Capacities of Cement Raw Meals in Calcium Looping Systems

CO₂ Carrying Capacities of Cement Raw Meals in Calcium Looping Systems

Degradation study of a novel polymorphic sorbent under realistic post-combustion conditions

CCS from industrial sources

Contact Info

Product

Resources

About

Investigation into potential synergy between power generation, cement manufacture and CO2 abatement using the calcium looping cycle

Cited by 116 publications

References 7 publications

CO2 Carrying Capacities of Cement Raw Meals in Calcium Looping Systems

CO2 Carrying Capacities of Cement Raw Meals in Calcium Looping Systems

Degradation study of a novel polymorphic sorbent under realistic post-combustion conditions

CCS from industrial sources

Contact Info

Product

Resources

About

CO₂ Carrying Capacities of Cement Raw Meals in Calcium Looping Systems

CO₂ Carrying Capacities of Cement Raw Meals in Calcium Looping Systems