Banca de DEFESA: MÁGDA CORREIA DOS SANTOS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : MÁGDA CORREIA DOS SANTOS
DATE: 10/08/2022
TIME: 14:00
LOCAL: https://conferenciaweb.rnp.br/events/defesa-magda-correa-ppgqb
TITLE:

DISTILLATION COLUMNS SIMULATION FOR BIOETHANOL FUEL PURIFICATION: property modeling,
mass and energy balance, optimization and technical-economic evaluation.

KEY WORDS:

Biothanol; Distillation column; Otimization; Simulation; Biofuel

PAGES: 108
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUMMARY:

Considering the economic and environmental importance of bioethanol, this work evaluated binary and
multicomponent systems. For the first, mathematical models adjusted to the properties data of the ethanol-water
mixture were applied to calculate the energy balance involved in the conventional bioethanol purification process. The total steam consumption was obtained for the ethanolic concentration in the wine feed stream of 6, 8 and 10 %v. The calculated data were compared with simulations carried out in the Aspen Plus software, obtaining an average absolute relative deviation of less than 5%. In addition, the simulated temperature and composition profiles agreed with sample data from an industrial unit. Therefore, mathematical models and energy balance calculations proved to be a simpler and faster option to estimate the total steam consumption involved in the purification of hydrated bioethanol fuel, considering the ethanol-water binary. For the multicomponent system, the conventional process plus two production alternatives were studied under the energetic, economic, qualitative and environmental aspects. Also using the Aspen Plus software with the insertion of a relevant number of components from the industrial process, the purification of the fuel hydrated bioethanol was investigated by optimizing the specifications of the distillation set.
Configurations, conventional and alternative I and II, were satisfactorily developed and all reached the quality
standards of specific Brazilian legislation. From an economic and environmental point of view, the alternative
processes obtained the best results, with emphasis on alternative I, which obtained 11%, 6% and 7,5% less steam consumption and operating costs and CO2 emissions, respectively, compared to the conventional. In this way, it was demonstrated that the traditional process is more than sufficient for the purification of hydrated bioethanol fuel. In addition, the low quality requirement of this product contributes to the operation of simplified industrial plants with the proposed alternative processes. However, the industrial practice of nullifying column D results in significant advantages for the production of biofuel, which can be encouraged and improved to cover more types of products.

BANKING MEMBERS:
Presidente - 1515173 - SIMONI MARGARETI PLENTZ MENEGHETTI
Interna - 1314677 - CARMEM LUCIA DE PAIVA E SILVA ZANTA
Interno - 1348288 - MARIO ROBERTO MENEGHETTI
Externo ao Programa - 1121112 - JOAO INACIO SOLETTI
Externo ao Programa - 3182573 - RODOLFO JUNQUEIRA BRANDAO
Externo à Instituição - ALLAN DE ALMEIDA ALBUQUERQUE - UFPE