WebMar 30, 2012 · A large CO (2) capture capacity of fly ash under mild conditions has been confirmed. The CO (2) was fixed in both carbonate precipitates and water-soluble bicarbonate, and the conversion between these two species was achievable at approximately 60°C and a CO (2) partial pressure above 3 bar. WebMar 1, 2016 · However, the type of Ca source in fly ash was an important parameter in the carbonation process. If fly ash contains desulfurization wastes, the carbonation efficiency of fly ash...
Accelerated carbonation pretreatment of municipal solid waste ...
WebNov 20, 2024 · Direct carbonation of high-calcium Ptolemais fly ash was conducted, in the temperature range of 160–290 °C and under 1–6 bars of CO 2, in dry and moist … WebJun 1, 2024 · Then, carbonation, strength and leaching experiments are carried out for 40% and 60% cement-solidified fly ash to validate the modified models and study the effect of carbonation and fly ash ratio on the performance of the cement-solidified fly ash. 2. Mathematical modeling 2.1. Equations of supercritical carbonation process félix león martínez
Utilization of fly ash-based geopolymer for well cement during …
WebOct 5, 2005 · The aim of this paper is to develop a model for simulating carbonation of fly ash concrete. The model describes the diffusion of gases ( C O 2 and water vapor) in … WebApr 7, 2024 · Municipal solid waste incineration fly ash (MSWIFA) is an alkaline by-product (pH≈11.1–12.3) ... Development of greener alkali-activated cement: utilisation of sodium carbonate for activating slag and fly ash mixtures. J. Clean. Prod., 113 (2016), pp. 66-75. View PDF View article View in Scopus Google Scholar [28] WebCurrently, there is an urgent need to remediate heavy metals (HMs) and high alkalinity in the washing solution of fly ash (FA). This study investigated the remediation with simulated exhaust gases of two CO2 partial pressure and revealed the removal efficiency of target pollutants, mainly including Pb ions. The results verify that under the preferred conditions … felix lengyel spotify