Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
COGENERATION SYSTEM APPLIED IN BIODIESEL PRODUCTION: ENERGY, EXERGY AND ECONOMICAL ANALYSIS
Submission Author:
João Paulo Tavares Cantagallo , SP
Co-Authors:
João Paulo Tavares Cantagallo, PEDRO MAGALHÃES SOBRINHO SOBRINHO, José Luz Silveira
Presenter: João Paulo Tavares Cantagallo
doi://10.26678/ABCM.ENCIT2018.CIT18-0163
Abstract
In these days, the world is thinking about the greenhouse effect and what its need to do to decrease that. Scientists from all of the world has working hard doing researches about bioenergy and other ways to increase energetic efficiency and decrease the use of fossil fuels, reducing pollutant emissions. Biodiesel comes in that way because it’s a fuel produced by vegetable oil or animal fat, that is to say, of renewable raw. One problem from biodiesel production is the co-product, the Glycerol. Brazilian market produces more glycerol than it can consume, so in this paper its studied one way to use that byproduct. Cogeneration is one technique used to generate two products from just one source of fuel. The purpose of this paper is to use natural gas into an internal combustion engine and generate electrical energy for the biodiesel process and saturated steam to use in the process of biohydrogen production by steam reforming of glycerol. Sankey and Grassman diagrams were constructed to visualize the energetic and exergetic flows. In final step, the economic analysis was applied based at the payback period method and the plant needs approximately two years to get the compensation, depending of the different annual interest rates.
Keywords
cogeneration, biodiesel, exergy, Internal combustion engine, Combined heat and power
