Moisture sorption characteristics of switchgrass and prairie cord grass

Karunanithy, Chinnadurai; Muthukumarappan, Kasiviswanathan; Donepudi, Aaslesha

doi:10.1016/j.fuel.2012.05.004

Cited by 15 publications

(24 citation statements)

References 41 publications

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“…It depends on several factors such as chemical and physical properties of the feedstocks, process variables such as pretreatment, grinding, milling, pelleting etc. [2,48]. The pellet durability of the AFEX-pretreated switchgrass ranged from 78.2 to 91.1% (Table 7).…”

Section: Durabilitymentioning

confidence: 99%

“…However, we did our preliminary study on the PAKs of AFEXpretreated and un-pretreated feedstocks and results showed that untreated biomass pellets were much less durable than the AFEX-densified biomass (Data not shown). Karunanithy et al [2] reported the durability of the briquettes of corn stover and prairie cord grass as 97% and 61%, respectively. While comparing the durability of AFEX-densified corn stover and prairie cord grass as obtained in this study with those of Karunanithy et al [2], the AFEX-densified prairie cord grass had significantly higher durability whereas, the AFEXdensified corn stover had similar durability.…”

Section: Durabilitymentioning

confidence: 99%

“…Karunanithy et al [2] reported the durability of the briquettes of corn stover and prairie cord grass as 97% and 61%, respectively. While comparing the durability of AFEX-densified corn stover and prairie cord grass as obtained in this study with those of Karunanithy et al [2], the AFEX-densified prairie cord grass had significantly higher durability whereas, the AFEXdensified corn stover had similar durability. Durability of the agricultural biomass has been divided into three different classes of high (>80%), medium (70e80%), and low (<70%) [51].…”

Section: Durabilitymentioning

confidence: 99%

“…Introduction Lignocellulosic biomass, for example corn stover, switchgrass, and prairie cord grass are widely available and can be converted through wide range of technologies to different forms of energy, chemicals, and materials [1,2]. Efficient conversion of biomass into bioenergy relies heavily on the effective, consistent, and economical transport of biomass from field to the biorefinery.…”

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confidence: 99%

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Physical characteristics of AFEX-pretreated and densified switchgrass, prairie cord grass, and corn stover

Karki

Muthukumarappan

Wang

et al. 2015

Biomass and Bioenergy

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LignocellulosicPellet durability Storage a b s t r a c tThe goal of the study was to evaluate and compare the physical properties of control, pretreated and densified corn stover, switchgrass, and prairie cord grass samples.Ammonia Fiber Expansion (AFEX) pretreated switchgrass, corn stover, and prairie cord grass samples were densified by using the comPAKco device developed by Federal Machine Company of Fargo, ND. The densified biomass were referred as "PAKs" in this study. All feedstocks were ground into three different grind size of 2, 4 and 8 mm prior to AFEX pretreatment and the impact of grinding on pellet properties was studied. The results showed that the physical properties of AFEX-PAKed material were not influenced by the initial grind size of the feedstocks. The bulk density of the AFEX-PAKed biomass increased by 1.2e6 fold as compared to untreated and AFEX-pretreated materials. The durability of the AFEX-PAKed materials were between 78.25 and 95.2%, indicating that the AFEX-PAKed biomass can be transported easily. To understand the effect of storage on the physical properties of these materials, samples were stored in the ambient condition (20 ± 2 C and 70 ± 5% relative humidity) for six months. After storage, thermal properties of the biomass did not change but glass transition temperature decreased. The water absorption index and water solubility index of AFEX-treated and AFEX-PAKed biomass showed mixed trends after storage. Moisture content decreased and durability increased upon storage. ScienceDirect ht tp://www.elsevier.com/locate/biombioe b i o m a s s a n d b i o e n e r g y 7 8 ( 2 0 1 5 ) 1 6 4 e1 7 4 http://dx.

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Section: Durabilitymentioning

confidence: 99%

Section: Durabilitymentioning

confidence: 99%

Section: Durabilitymentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Physical characteristics of AFEX-pretreated and densified switchgrass, prairie cord grass, and corn stover

Karki

Muthukumarappan

Wang

et al. 2015

Biomass and Bioenergy

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“…In fact, Chen and Morey [5] found that the Modified Henderson and Chung-Pfost equations provided good models for starch grains and fibrous materials, the Modified Halsey equation was a useful model for high oil and protein products, and the Modified Oswin equation best fit the sorption-desorption behavior of popcorn, corncobs, and some corn varieties. To date, moisture sorption isotherm relationships have been determined for a large variety of bioenergy crops: Miscanthus Â giganteus [6], switchgrass [7,8], switchgrass pellets [9]; prairie cord grass [7], corn stover [10], energy sorghum [11], and aspen [12]. Each of the models (Eqs.…”

Section: Introductionmentioning

confidence: 99%

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

Chen

Danao

2015

Fuel

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Developments in crops and management systems to improve lignocellulosic feedstock production

Coulman

Dalai

Heaton

et al. 2013

Biofuels Bioprod Bioref

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There is an urgent need to develop viable, renewable, sustainable energy systems that can reduce global dependence on fossil fuel sources of energy. Biofuels such as ethanol are being utilized as blends in surface transportation fuels and have the potential to improve sustainability and reduce greenhouse gas emissions in the short term. Bioethanol, the most widely used liquid biofuel, is currently produced by converting sugars or starches from feed crops into ethanol. Use of this fuel source displaces and draws water consumption away from agricultural crops, increases soil erosion by shifting land from perennial grasses to annual crops, and increases use of fertilizers and insecticides. In contrast, bioethanol made from lignocellulosic biomass feedstocks does not have these limitations and in addition, offers a larger resource base: the amount of cellulosic material available for potential use vastly outweighs the amount of available starch‐based feedstock. Therefore, bioethanol from lignocellulosic biomass has attracted considerable interest from biofuel developers. This review is an update of some developments to optimize cellulose extraction from feedstock crops and to improve crop yields and logistics. It concludes that agricultural and forestry systems that incorporate lignocellulosic biomass crops can be designed for improved ecological function and energy use efficiency. Development of crops that have both desirable cell‐wall traits and high biomass productivity under sustainable low‐input conditions can significantly enhance the economics and efficiency of the conversion process. Optimizing the logistics of moving feedstock from field or forest to bio‐refinery can significantly reduce costs of using lignocellulosic feedstocks. © 2013 Society of Chemical Industry and John Wiley & Sons, Ltd

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Moisture sorption characteristics of switchgrass and prairie cord grass

Cited by 15 publications

References 41 publications

Physical characteristics of AFEX-pretreated and densified switchgrass, prairie cord grass, and corn stover

Physical characteristics of AFEX-pretreated and densified switchgrass, prairie cord grass, and corn stover

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

Developments in crops and management systems to improve lignocellulosic feedstock production

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