Banca de DEFESA: TITO FRANCISCO IANDA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : TITO FRANCISCO IANDA
DATE: 05/05/2023
TIME: 10:00
LOCAL: https://meet.google.com/wht-qhet-whf
TITLE:

TECHNO-ECONOMIC-ENVIRONMENTAL-SOCIAL EVALUATION OF MODULAR BIOREFINERY IN GUINEA-BISSAU

KEY WORDS:

Modular biorefineries. Palm oil. Castor oil. Ricinus oil.Techno-economic and Socio-environmental feasibility. Patent search. Uncertainty assessment. Guinea-Bissau.

PAGES: 191
BIG AREA: Engenharias
AREA: Engenharia de Produção
SUMMARY:

Modular biorefineries are promising industries for diversifying developing countries’ economies and reducing external dependence on productive inputs. This research aimed to evaluate the techno-economic, environmental, and social viability of modular biorefineries for the production of inputs with high added value for the pharmaceutical, cosmetic, or food industry in Guinea-Bissau, from the processing of Fresh Fruit Bunches of palm oil (FFB) and peeled castor bean seeds. The methodology employed to achieve the proposed objective relies on a multi-criteria multidimensional optimization model built to assess the sustainability of proposed biorefineries and support decision-making. The FFB products evaluated were crude oil, refined oil, palm kernel oil, and stearin; while those from castor oil were crude oil, refined oil, and stearin. In order to serve regional markets with these products, the installation of seven modular biorefineries in Guinea-Bissau was proposed. Data were obtained from secondary sources and compiled in the Python® programming language. Data uncertainty was evaluated from the Pedigree Matrix and its variability through Monte Carlo Simulations. Availability of 3.66  105 t year−1 of FFB and 1.8  104 t year−1 of castor bean seeds was estimated. The solution of the multidimensional model indicated the optimal quantity of each product to be produced in order to reach a gross profit of 5.03  108 US$ year-1 in the optimized scenario. GHG emissions from the processing of raw materials in the base scenario were 1.75  108 kg CO2eq year-1, while in the optimized scenario it was 2.40  108 kg CO2eq year-1. This difference, however, is within the uncertainty range of environmental assessment information. The generation of jobs in the base scenario is 1.24  105 jobs per year; in the optimized scenario, it is 1.80  105 jobs per year. There is a trade-off between maximizing profit and minimizing GHG emissions. By maximizing profit, GHG emissions increase by 148 %, and by minimizing GHG emissions, gross profit decreases by 82 %. Finally, different carbon credit compensation scenarios were simulated with excess GHG emissions by maximizing gross profit at a cost of 0.03 US$/(kg-1 CO2), 0.10 US$/(kg-1 CO2) and total compensation of all GHG emissions generated, which indicated an impact of 0.86 %, 2.86 % and 4.77 % of gross profit, respectively. The economic-financial feasibility analysis made it possible to verify that the project is viable since the Net Present Value is 7.79  107 US$, the Minimum annual Attractiveness Rate of 14 %, the Internal Rate of Return is equal to 34 %, and the deadline for return on the initial investment (Simple Payback and Discounted Payback), is 2.90 years and 3.95 years, respectively.
Keywords: Modular

COMMITTEE MEMBERS:
Externo à Instituição - Antônio Domingos Padula - UFRGS
Externo à Instituição - Eduardo Mach Queiroz - UFRJ
Externo à Instituição - Joelson Ferreira de Oliveira - UFMG
Externo à Instituição - ALEX ALISSON BANDEIRA SANTOS - Senai
Interna - 1677204 - ELAINE CHRISTINE DE MAGALHAES CABRAL ALBUQUERQUE
Externo à Instituição - FERNANDO LUIZ PELLEGRINI PESSOA - Senai
Presidente - ***.221.365-** - RICARDO DE ARAUJO KALID - UFBA