|Title:||Functional mapping of torrefied product characteristics with index of torrefaction|
Thengane, Sonal K.
|Published in:||Fuel Processing Technology|
|Abstract:||Torrefaction converts raw biomass into a product with higher energy density, higher fixed carbon, better grindability, HHV and longer shelf life. The extent of improvement in these and other properties can be governed by appropriately regulating the reactor operating conditions for a specified biomass. The industrial applications ranging from biofuels to chemicals have different priorities for the specific characteristics of the torrefied biomass. Some of the earlier studies on torrefaction have quantified the overall process performance by defining a parameter or index for the degree or severity of torrefaction. However, very few attempts have been made to relate the torrefaction severity to the properties of the torrefied biomass. In this paper, we have simplified the reference condition for earlier proposed definition of index of torrefaction (Basu et al. ) and showed that there exists a quantifiable functional relationship between the defined index and the characteristics of the torrefied biomass. The mapping co-relations depend on the type of biomass feedstock, and the index informs the type of biomass appropriate for a specific application. While this paper focuses only on classical torrefaction characteristics such as energy density, proximate and elemental analyses, and batch and continuous grindability, this analysis can be generalized to quantify other non-classical characteristics such as densification, cooking fuel characteristics, and biochar-soil interactions. © 2020 Elsevier B.V.|
|Citation:||Fuel Processing Technology, 202|
Index of torrefaction
|Author Scopus IDs:||55776982600|
|Author Affiliations:||Kung, K.S., Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States, Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States, Cyclotron Road Program, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States|
Thengane, S.K., Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
Ghoniem, A.F., Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
|Funding Details:||Material and equipment of work was funded by the MIT-Tata Center and the Abdul Jameel Latif Water and Food Systems Lab (J-WAFS). In addition, KSK would like to acknowledge the MIT-Tata Center Fellowship, the Cyclotron Road fellowship, the Dolores Zohrab Liebmann Fellowship, and the Legatum Fellowship for support. The authors are thankful to Prof. Sanjay M. Mahajani and Ankita Gupta, Department of Chemical Engineering, Indian Institute of Technology-Bombay, Powai, India for carrying out ultimate analysis of the samples in their laboratory. The authors would also like to acknowledge Dr. Santosh Shanbhogue and Dr. Georgios Dimitrakopoulos for procuring and maintaining some of the essential analytical equipment for this study.|
|Corresponding Author:||Kung, K.S.Room 3-339, 77 Massachusetts Avenue, United States; email: firstname.lastname@example.org|
|Appears in Collections:||Journal Publications [HRE]|
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