Modeling the equilibrium moisture content ( EMC ) of Miscanthus sinensis , miscane, energy cane, and energy sorghum

Chen, Shih‐Fang; Danao, Mary‐Grace C.

doi:10.1016/j.fuel.2015.01.021

Cited by 6 publications

(12 citation statements)

References 19 publications

(24 reference statements)

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“…It means that HAB materials have the same sorption mechanisms, represented by monolayer sorption dominated at lower ERHs (0–0.2), multilayer sorption at mid-ERHs (0.2–0.7), and capillary condensation in pores and void spaces of the material at higher ERHs (>0.7) . Actually, the type II isotherm was claimed for HAB materials in most of the surveyed studies; other types of sorption were just occasionally identified for a few samples, e.g., a non-S shape desorption isotherm observed for corn cobs and a type III adsorption isotherm for energy cane and sorghum …”

Section: Resultsmentioning

confidence: 93%

“…Figure a compiles the 25 °C adsorption isotherms of 33 samples collected from 14 works. ,,,,,− , The samples include the species of all HAB subgroups in the form of powder, particles, or pellets. The observed similarity and variation are generally in line with those from the 20 °C adsorption isotherms (Figure a).…”

Section: Resultsmentioning

confidence: 99%

“…Some compounds are water-soluble, having a significantly different sorption behavior from the water-insoluble major components . For example, sucrose exhibits a type III isotherm. , As a result, HABs with high sucrose contents are likely to present a type III isotherm rather than a type II isotherm . In addition to the organic components, the inorganic matter may also play an appreciable role .…”

Section: Resultsmentioning

confidence: 99%

“…MSI data of HAB materials were collected from the literature, − ,− including adsorption and/or desorption isotherms measured at a single temperature or multiple temperatures. The materials in the collection include in total 74 samples of 37 species covering all subgroups of HAB species, namely, grasses, straws, stalks, fibers, shells, and husks, and other residues according to the classification of Vassilev et al The grasses are mainly traditional forage grasses and dedicated energy crops, e.g., switchgrass, miscanthus, and energy sorghum.…”

Section: Data Collection and Analysismentioning

confidence: 99%

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Moisture Sorption Isotherm of Herbaceous and Agricultural Biomass

2019

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The moisture sorption isotherm (MSI) is very useful for biomass drying and storage. In the present work, measured MSI data of herbaceous and agricultural biomass (HAB) were collected from the literature. The adsorption or desorption isotherms at the same temperatures (15, 20, 25, 30, 35, and 40 °C for adsorption and 20, 25, 30, and 35 °C for desorption) were compared, separately, to demonstrate the similarity, evaluate the difference in the MSI among HABs, and explore the feasibility of applying the similarity for MSI prediction. It was observed that the MSIs of HABs at the same temperature are similar, with most measurements falling within a range of ±20% from an average given by a Guggenheim, Anderson, and de Boer (GAB) model. The chemical composition and distinct sorption behaviors of the biomass components were identified as the major factors determining the similarity and defining the variation in the MSIs of HABs. Factors associated with the measurement, including the temperature of drying for sample preparation and uncertainty related to sample heterogeneity, may cause the variation of the MSI comparable to the range of ±20%. Considering the similarities among HABs, using the average to estimate the MSI of an unknown HAB has a relative error of < ±20%. Estimating the MSI based on the chemical composition and isotherms of the major components (cellulose, lignin, and hemicelluloses as well as the extractives) can achieve the same accuracy. Both may be acceptable for practical applications. Additionally, it was found from the comparison that HABs, on average, have evidently higher MSIs than wood species mainly as a result of their higher contents of hemicellulose and the extractives.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Data Collection and Analysismentioning

confidence: 99%

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Moisture Sorption Isotherm of Herbaceous and Agricultural Biomass

2019

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“…Environmentally secure (McKendry, 2002;Matsuoka et al, 2014). Major biomass energy crops may include Sorghum, Maize, Reed canary grass, Miscanthus, Sugarcane (Sims et al, 2006), Switch grass and newly developed 'Miscane' (Burner et al, 2015;Science 2.0, news article, 2015;Chen and Danao, 2015). It is very crucial to select an appropriate energy crop, for best adaptation, benefit and restoration of degraded land (McKendry, 2002;.…”

Section: Dedicated Energy Cropsmentioning

confidence: 99%