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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Intraparticle Connectivity in Sugarcane Bagasse Unveiled by Pore Network Modeling

Full text
Author(s):
Yancy-Caballero, Daison [1, 2] ; Ling, Liu Y. [2] ; Fujita, Andre [1] ; Ferreira, Joao E. [1] ; Driemeier, Carlos [2]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Inst Math & Stat IME, BR-05508090 Sao Paulo, SP - Brazil
[2] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Bioethanol Sci & Technol Lab CTBE, POB 6192, Rua Giuseppe Maximo Scolfaro 10-000, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: BioEnergy Research; v. 12, n. 3, p. 546-557, SEP 2019.
Web of Science Citations: 0
Abstract

Sugarcane bagasse is a vast, inexpensive lignocellulosic feedstock that can be industrially converted into renewable materials, chemicals and biofuels. Bagasse, which results from the shredding and crushing of the sugarcane stalks, has a pore structure that is inherited from the native plant tissues and is partly disrupted due to the applied mechanical processes. The connectivity in the bagasse pore space can be critical for mass transport in industrial processes requiring liquid or solute extraction from the solid or impregnation of catalysts and reactants into the biomass. In this work, we pioneer the construction of pore network models (PNMs) to investigate intraparticle connectivity in lignocellulosic biomass. X-ray microtomograms of sugarcane bagasse are employed to extract the PNMs, which are then analyzed with support from hydraulic, diffusion, and graph theory-based methods. The analysis determines the characteristic sizes and anisotropies of the bagasse pore space. Moreover, it reveals that a relatively small number of pores are critical for the intraparticle connectivity. The critical pores can be in tissue cracks and xylem vessels as well as in ruptured parenchyma and fiber cells. The relative importance of each of these regions depends on the specifics of the bagasse particle. (AU)

FAPESP's process: 17/01330-5 - 3D image analysis for realistic modeling and simulation of biomass conversion processes
Grantee:Daison Manuel Yancy Caballero
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 15/01587-0 - Storage, modeling and analysis of dynamical systems for e-Science applications
Grantee:João Eduardo Ferreira
Support Opportunities: Research Grants - eScience and Data Science Program - Thematic Grants