Alkali silicates and structured mesoporous silicas from biomass power station waste: the emergence of bio-MCMs: The emergence of bio-MCMs

J.R. Dodson; E.C. Cooper; A.J. Hunt; A. Matharu; J. Cole; A. Minihan; J.H. Clark; D.J. MacQuarrie

doi:10.1039/C3GC40324F

Alkali silicates and structured mesoporous silicas from biomass power station waste: the emergence of bio-MCMs: The emergence of bio-MCMs

J.R. Dodson, E.C. Cooper, A.J. Hunt, A. Matharu, J. Cole, A. Minihan, J.H. Clark, D.J. MacQuarrie

Chemistry

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Abstract

The waste ashes from a commercial biomass combustion facility are successfully converted into mesoporous structured silica utilising a biorefinery approach, with potential high value applications in catalysis, adsorption and separation processes. Potassium silicate solutions are formed via a simple hydrothermal extraction of miscanthus bottom ashes, rich in amorphous silica, with a reproducible extraction of 60-70%. The extension and validation of a rapid and facile infrared method for the quantification of the silicate solutions is demonstrated with important industrial applications for continuous online screening and tuning of the silicate solution ratio and concentration. The alkali solutions from the waste ashes are used for the formation of a structured high surface area mesoporous silica, MCM-41 (1043 m g, 1.12 cm g). The resulting mesoporous silica was analysed by XRD, N adsorption porosimetry and TEM.

Original language	English
Pages (from-to)	1203-1210
Number of pages	8
Journal	Green Chemistry
Volume	15
Issue number	5
DOIs	https://doi.org/10.1039/C3GC40324F https://doi.org/10.1039/c3gc40324f
Publication status	Published - 1 May 2013

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abstract = "The waste ashes from a commercial biomass combustion facility are successfully converted into mesoporous structured silica utilising a biorefinery approach, with potential high value applications in catalysis, adsorption and separation processes. Potassium silicate solutions are formed via a simple hydrothermal extraction of miscanthus bottom ashes, rich in amorphous silica, with a reproducible extraction of 60-70%. The extension and validation of a rapid and facile infrared method for the quantification of the silicate solutions is demonstrated with important industrial applications for continuous online screening and tuning of the silicate solution ratio and concentration. The alkali solutions from the waste ashes are used for the formation of a structured high surface area mesoporous silica, MCM-41 (1043 m g, 1.12 cm g). The resulting mesoporous silica was analysed by XRD, N adsorption porosimetry and TEM.",

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AU - Dodson, J.R.

AU - Cooper, E.C.

AU - Hunt, A.J.

AU - Matharu, A.

AU - Cole, J.

AU - Minihan, A.

AU - Clark, J.H.

AU - MacQuarrie, D.J.

PY - 2013/5/1

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N2 - The waste ashes from a commercial biomass combustion facility are successfully converted into mesoporous structured silica utilising a biorefinery approach, with potential high value applications in catalysis, adsorption and separation processes. Potassium silicate solutions are formed via a simple hydrothermal extraction of miscanthus bottom ashes, rich in amorphous silica, with a reproducible extraction of 60-70%. The extension and validation of a rapid and facile infrared method for the quantification of the silicate solutions is demonstrated with important industrial applications for continuous online screening and tuning of the silicate solution ratio and concentration. The alkali solutions from the waste ashes are used for the formation of a structured high surface area mesoporous silica, MCM-41 (1043 m g, 1.12 cm g). The resulting mesoporous silica was analysed by XRD, N adsorption porosimetry and TEM.

AB - The waste ashes from a commercial biomass combustion facility are successfully converted into mesoporous structured silica utilising a biorefinery approach, with potential high value applications in catalysis, adsorption and separation processes. Potassium silicate solutions are formed via a simple hydrothermal extraction of miscanthus bottom ashes, rich in amorphous silica, with a reproducible extraction of 60-70%. The extension and validation of a rapid and facile infrared method for the quantification of the silicate solutions is demonstrated with important industrial applications for continuous online screening and tuning of the silicate solution ratio and concentration. The alkali solutions from the waste ashes are used for the formation of a structured high surface area mesoporous silica, MCM-41 (1043 m g, 1.12 cm g). The resulting mesoporous silica was analysed by XRD, N adsorption porosimetry and TEM.

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Alkali silicates and structured mesoporous silicas from biomass power station waste: the emergence of bio-MCMs: The emergence of bio-MCMs

Abstract

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