Search

Introduction: The Cuban sugar industry offers opportunities to use its byproducts and waste to obtain new goods, under the concept of biorefinery. Several proposals have been made for the diversification of sugar agroindustrial companies with the potential to do so, without the provision of a strategic procedure to follow where concrete actions for technological integration are shown. Objective: To propose a strategic procedure for technological integration, applicable in nondiversified sugar agroindustrial companies, that allows the use of byproducts and waste under the biorefinery concept. Materials and Methods: The historical information corresponding to a non-diversified sugar agroindustrial company in the province of Camagüey was taken into account to obtain criteria related to the complex analysis of processes. The methods for technological management and assimilation allowed for the elaboration of a proposal for technological integration to obtain xylitol, pellets and torula. Results and Discussion: Using a heuristic diagram, a strategic procedure to follow for technological integration is described, which ranges from the identification of sugarcane growth potentialities and the disposal of byproducts or waste, considering the technical, economic and environmental feasibility of the possible integration, until reaching optimization and proposal of productive linkage. Conclusions: A strategic procedure was proposed for technological integration in non-diversified sugar agroindustrial companies, considering from the availability of sugarcane to the possibility of productive linkage. The integration proposal for production allows the use of byproducts and waste under the biorefinery concept. [ABSTRACT FROM AUTHOR]

The extraction of the juice from the filters in the sugar industry enables the production of torula yeast cream to promote swine feeding, allowing the amount of leftover bagasse to be increased to be used to obtain xylitol for the food industry, and to take advantage of the resulting lignocellulosic material as a source of compacted energy for the generation of electricity, in the context of a biorefinery. Assess the alternatives for the production of torula yeast, xylitol and pellets from the extraction of the juice from the filters, considering the context of a biorefinery, for the benefit of swine feeding, the food industry and electricity generation. Starting from the extraction of juice from the filters, the investment and production capacities of torula yeast cream were used, and through the materials and energy balances, the possible increases in leftover bagasse and the integration of the production of xylitol and pellets were obtained. The quantities of sugar, honey, bagasse, torula, xylitol and pellets were obtained for the different extraction rates and the increase in profits and financial indicators were analyzed. With the prices of the products, the cost of raw materials and the investment estimates, the optimal extraction percentage of the juice from the filters is around 40 percent. [ABSTRACT FROM AUTHOR]

Introduction: This research arises from the need to have criteria that support the versatility of sugarcane bagasse, not only used as fuel for the process that produces it, but also its use in the ways that farming industry residues are currently used, in the form of pellets. Objective: To review in the bibliography what is exposed about the use, properties and pretreatments applied to sugarcane bagasse, which are the cause of its potential as an energy carrier in the form of pellets. Materials and Methods: References from the last ten years were consulted, in relation to the use of bagasse, its chemical and energetic properties, the different types of pre-treatments that can receive before being used as an energy carrier and the substances that are extracted. Results and Discussion: From the physical properties analyzed, low nitrogen and sulfur contents were found. In addition, the caloric power was observed in a range of 17-19 MJ/kg. Among its lignocellulosic components, cellulose is the one with the highest percentage. Like pellets, the presence of lignin is essential during compaction. The characteristics of the biomass pellets were searched, observing that the sugarcane bagasse complies with the standards. Conclusions: The review carried out is the starting point for research directed towards the study of the use of agro-industrial waste as an energy carrier in the form of pellets. [ABSTRACT FROM AUTHOR]

The present work was carried out at "Raúl Cepero Bonilla" Meat Company in the province of Camagüey, Cuba, with the objective of evaluating the steam generation, distribution and consumption system. A value of heat losses of the pipes of 207 094.99 W was obtained due to lack of thermal insulation. With the proposal of the use of Mineral Wool insulation in the pipes that require it, these losses are reduced by 92.303%. The energy efficiency of the steam generator was 90.7% while the exergy was of 7.03%. With the proposal of the condensate recovery design, 475 015.5 liters of water treated per year would be saved, bringing a reduction in fuel consumption of 64 186.51 liters annually. With the improvements that are introduced in the system, a total economic saving of $ 94 172.78 Cuban pesos (CUP) per year is obtained, being of CUP $ 10 759.37 the total cost of the investment, which can be recovered in a period of 1.4 months. A Net Present Value of CUP $ 36 238 and an Internal Rate of Return of 71% was obtained, which qualifies the proposed improvements as profitable. [ABSTRACT FROM AUTHOR]

Copyright of Revista Mutis is the property of Revista Mutis and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)