Abstract:Cassava processing produces by-products such as brown bark, between bark, disposal, bran, fiber and bagasse. Cassava bagasse is characterized as a source of starch that can be converted into sugars to obtain biofuels. The objective of this work was to produce ethanol from this cassava processing residue and to evaluate its contribution potential in the Brazilian energy matrix. Cassava processing residues were obtained from four different starch manufacturers in Brazil. Analysis of the chemical compositions of … Show more
“…If we assume that Red Stripe's pilot plant processes between 3,500 and 5,500 tonnes of cassava into starch annually (roughly between 50% and 75% capacity), on average, between 950 and 1,500 tonnes of peels and between 1,400 and 2,200 tonnes of pulp could be available at that location. Ethanol potential from cassava peels and pulp is estimated to be between 180 and 318 liters per tonne, or about 250 liters per tonne on average (Ogbonna et al 2018;Mithra et al 2018;Martinez et al 2018). Thus, between 625,000 and 970,000 liters of ethanol could be produced from cassava processing waste (peels and pulp) in Jamaica.…”
“…If we assume that Red Stripe's pilot plant processes between 3,500 and 5,500 tonnes of cassava into starch annually (roughly between 50% and 75% capacity), on average, between 950 and 1,500 tonnes of peels and between 1,400 and 2,200 tonnes of pulp could be available at that location. Ethanol potential from cassava peels and pulp is estimated to be between 180 and 318 liters per tonne, or about 250 liters per tonne on average (Ogbonna et al 2018;Mithra et al 2018;Martinez et al 2018). Thus, between 625,000 and 970,000 liters of ethanol could be produced from cassava processing waste (peels and pulp) in Jamaica.…”
“…Corn, sugar cane and wheat are major crops used globally to produce ethanol (Zabed et al, 2016;Li et al, 2016;Gupta andVerma, 2015, McMurry, 2015;Vollhardt and Schore, 2014;Boundy et al, 2011). Several studies demonstrate the use of cassava and sweet potato as raw materials for ethanol production (Costa et al, 2018;Martinez et al, 2018;Pereira et al, 2017;Schweinberger et al, 2016;Archibong et al, 2016;Swain et al, 2013;Oyeleke et al, 2012;Ademiluyi and Mepba, 2013;Ocloo and Ayenor, 2010). The search for the optimal processing conditions to hydrolyse and ferment sugars from the starches in cassava and sweet potato was the major *Corresponding author.…”
The use of cassava and sweet potato separately as raw materials for ethanol production in the recent past has been demonstrated. The search for the optimum processing conditions to hydrolyse and ferment sugars from the starches in cassava and sweet potato is well studied. The effects of substrate, temperature, enzyme types and concentrations, the reaction times of saccharification and fermentation were investigated for effect on ethanol yield. The objective of this work was to combine cassava and sweet potato as raw material to optimise the yield of ethanol for the combination. Selected cassava and sweet potato varieties were cultivated and harvested after 10 and 3 months, respectively. Liquefaction, saccharification and fermentation were carried out with Liquozyme SC DS, a combination of Spirizyme Fuel and Viscozyme L and Bio-Ferm XR (Lallemand) yeast, respectively. The combinations of cassava and sweet potato flours yield more ethanol than processing cassava and sweet potato flours separately. The best combination ratio of cassava and sweet potato, 1:1, resulted in the optimal ethanol yield of 16.2% v/v.
“…ere is much research that assesses the feasibility of producing biofuels from various types of biomass [9][10][11][12][13] and different conversion techniques [14,15]. Currently, many research efforts are directed towards the development of efficient conversion technologies and bioethanol supply chain (Bio-Eth SC) systems that use lignocellulosic biomass like raw materials [4].…”
Section: Introductionmentioning
confidence: 99%
“…is not significantly sensitive to the amount of bioethanol; for example, in the LA1 scenario, only 6.7% 2,3,5,6,7,8,9,10,11,12,13,14,16,18,19,20,21,22,23,24,26,27,28,29,31,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,54,57,65,87,88,89…”
The production of biofuels from agricultural biomass has attracted much attention from researchers in recent years. Biomass residues generated from agricultural production of corn and barley represent an essential source of raw material for the production of biofuels, and a mathematical programming-based approach can be used to establish an efficient supply chain. This paper proposes a model of mixed-integer linear programming (MILP) that seeks to minimize the total cost of the bioethanol supply chain. The proposal allows determining the optimal number and location of storage centers, biorefineries, and mixing plants, as well as the flow of biomass and bioethanol between the facilities. To show the proposed approach, we present a case study developed in the region of Tulancingo, Hidalgo, in Mexico (case study), considering the potential of biomass (corn and barley residues) in the region. The results show the costs for the production of bioethanol, transportation, and refining and total cost of the bioethanol supply chain, besides a sensitivity analysis on the costs of the bioethanol supply chain which is presented by mixing different percentages of bioethanol with fossil fuel to satisfy the demand. We conclude that the proposed approach is viable in the process of configuring the supply chain within the proposed study region.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.