Effects of CDS and drying temperature on the flowability behavior of DDGS

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dc.contributor.author Bhadra, Rumela
dc.contributor.author Muthukumarappan, K.
dc.contributor.author Rosentrater, Kurt A.
dc.date.accessioned 2012-05-21T18:26:50Z
dc.date.available 2012-05-21T18:26:50Z
dc.date.issued 2012-05-21
dc.identifier.uri http://hdl.handle.net/2097/13844
dc.description.abstract Due to increasing demand for alternative fuels and theneed to reduce dependence on fossil fuels, the growth of bioethanol production has been rising. One of the problems facing this industry is transportation of the coproduct dried distillers grains with solubles (DDGS) over long distances, because caking and agglomeration between particles can lead to bulk flow problems. In this study, DDGS was prepared by combining condensed distillers solubles (CDS) and distillers wet grains (DWG) and then oven drying to achieve 8% (db) moisture content. The effects of drying temperature (100, 200, and 300°C) and CDS (10, 15, and 20%wb ) level on the resulting flowability behavior of the DDGS particles were investigated. Statistical analyses indicated significant differences (α = 0.05, 95% confidence level) due to drying temperature and CDS main effects and significant interaction effects between CDS level and drying temperature for many of the flow parameters. Surface regression analysis of the ratio of total flow index/Jenike flow function as a function of CDS and drying temperature resulted in an R 2 value of 0.94. Partial least squares (PLS) regression yielded an R 2 of 0.90 for the Jenike flow function index as a function of all flow and physical properties using only two multivariate components. Understanding the effects of varying drying temperatures and CDS levels can help guide efforts to overcome DDGS flowability problems. en_US
dc.relation.uri http://www.tandfonline.com/doi/abs/10.1080/07373937.2011.649510 en_US
dc.rights This is an electronic version of an article published in Drying Technology: An International Journal, 30(5), 542-558. Drying Technology is available online at: http://www.tandfonline.com/doi/abs/10.1080/07373937.2011.649510 en_US
dc.subject Agglomeration en_US
dc.subject Caking en_US
dc.subject Carr en_US
dc.subject Condensed distillers solubles en_US
dc.subject Jenike en_US
dc.subject Distillers wet grains en_US
dc.title Effects of CDS and drying temperature on the flowability behavior of DDGS en_US
dc.type Article (author version) en_US
dc.date.published 2012 en_US
dc.citation.doi doi:10.1080/07373937.2011.649510 en_US
dc.citation.epage 558 en_US
dc.citation.issue 5 en_US
dc.citation.jtitle Drying Technology: An International Journal en_US
dc.citation.spage 542 en_US
dc.citation.volume 30 en_US
dc.contributor.authoreid rbhadra en_US

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