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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Instituto Federal de Educação, Ciência e Tecnologia de São Paulo
2017
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=449553639008 |
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Sommario:
- COMPARING THE ENVIRONMENTAL IMPACTS OF ETHYL BIODIESEL PRODUCTION FROM SOYBEAN OIL AND BEEF TALLOW THROUGH LCA FOR BRAZILIAN CONDITIONS Rafael Alves Esteves Roberto Guimarães Pereira Administración y Contabilidad Biofuels sustainability environmental impact assessment The present paper sought compare the environmental impacts throughout the life cycle of biodiesel productio n obtained from the two raw materials most used in Brazil (soybean oil and beef tallow) through the process ethyl transesterification in an alkaline medium. The reference flow adopted for the work was the generation of power supplied 1GJ from the produced biodiesel. The data used in the inventory life cycle were calculated based on similar scientific papers. The method of assessment of environmental impacts chosen was the CML 2001 modified. Altogether, it were analyzed nine categories of environmental impac ts for both processes (abiotic depletion (kg Sb eq), land use (m2a), global warming (kg CO 2 eq), ozone layer depletion (kg CFC -11 eq), human toxicity (kg 1,4-DB eq), freshwater ecotoxicity (kg 1,4-DB eq), terrestrial ecotoxicity (kg 1,4 -DB eq), acidificati on (kg SO 2 eq) and eutrophication (kg PO 4 3- eq)). The results of evaluation of environmental impacts show that the biodiesel production process from soybean oil presents major environmental damage in seven categories of analyzed impacts (destruction of abi otic resources, destruction of the ozone layer, human toxicity, freshwater ecotoxicity, terrestrial ecotoxicity, acidification and eutrophication). The production process of biodiesel from tallow presents major environmental damage in two categories of impacts analyzed (land use and global warming). However, the results show that the absolute values of environmental damage caused by impacts of the production process using beef tallow are much more aggressive. 2017 artículo científico 2236-269X https://www.redalyc.org/articulo.oa?id=449553639008 en http://www.redalyc.org/revista.oa?id=4495 Independent Journal of Management & Production application/pdf Instituto Federal de Educação, Ciência e Tecnologia de São Paulo Independent Journal of Management & Production (Brasil) Num.4 Vol.8