2021
DOI: 10.1016/j.fuproc.2021.106723
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A review of the effects of alkali and alkaline earth metal species on biomass gasification

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Cited by 171 publications
(25 citation statements)
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“…During cogasification, with the increase of cotton stalk ratio, the contents of H 2 and CO 2 increased, while the contents of CO and CH 4 decreased. This was due to the promoted heterogeneous carbon-vapor reactions (R(3) and R( 4)) [41], watergas shift reaction (R( 5)), and homogeneous hydrocarbon reforming reactions (R(6) and R( 7)) by inherent AAEMs [42].…”
Section: Figurementioning
confidence: 99%
“…During cogasification, with the increase of cotton stalk ratio, the contents of H 2 and CO 2 increased, while the contents of CO and CH 4 decreased. This was due to the promoted heterogeneous carbon-vapor reactions (R(3) and R( 4)) [41], watergas shift reaction (R( 5)), and homogeneous hydrocarbon reforming reactions (R(6) and R( 7)) by inherent AAEMs [42].…”
Section: Figurementioning
confidence: 99%
“…Despite alkali catalysts being comparatively expensive and difficult to replace, ash generated from most biomass sources is rich in alkali metals, and hence it can be used as an effective catalyst. According to Yu et al (2021), alkali and alkaline earth metals generally increase the gasification reactivity and gas yield while improving gas quality. However, the exact effect depends upon the gasification agent and other process parameters.…”
Section: Effects Of Process Parameters On Gasificationmentioning
confidence: 99%
“…Higher temperature pyrolysis conditions will lead to production of bio-oil with a composition trending toward a highly aromatic deoxygenated 55 product similar to gasification tar. 56,57,58 The composition of bio-oil can also be controlled via the use of catalytic pyrolysis. Zeolite-catalyzed pyrolysis can lead similarly to a highly aromatized deoxygenated product.…”
Section: ■ Industrial Carbons Processingmentioning
confidence: 99%
“…The composition of the bio-oil products can also be partially controlled by the pyrolysis conditions. Higher temperature pyrolysis conditions will lead to production of bio-oil with a composition trending toward a highly aromatic deoxygenated product similar to gasification tar. ,, The composition of bio-oil can also be controlled via the use of catalytic pyrolysis. Zeolite-catalyzed pyrolysis can lead similarly to a highly aromatized deoxygenated product. Other catalysts or coreactants can alter the composition of bio-oil in differing ways. , As is shown in this review, the amount of oxygen, ash, or other impurities in the precursor can influence the properties and function of the carbon product.…”
Section: Industrial Carbons Processingmentioning
confidence: 99%