Banca de QUALIFICAÇÃO: GIOVANNY SILVA DE OLIVEIRA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : GIOVANNY SILVA DE OLIVEIRA
DATE: 06/12/2023
TIME: 09:30
LOCAL: Virtual
TITLE:

Hydrogen/syngas production with cogeneration of energy using coconut husks through Chemical Looping. 

KEY WORDS:

Chemical Looping; Hydrogen; Syngas; CCUS; Process Model; Coconut shell; Cogeneration of energy.

PAGES: 33
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Processos Industriais de Engenharia Química
SPECIALTY: Processos Inorgânicos
SUMMARY:

Research looking for fuel sources with environmental appeal has been one of the main topics discussed by researchers around the world, being the use of biomass an attractive option in the energy transition, foreseeing not only decarbonization scenarios but also defossilization. The integration between these raw materials, with the potential for neutrality of CO2 emissions, and the Chemical Looping (CL) technology allows these goals to be achieved both through the supply of environmentally friendly raw materials, such as H2 and syngas, and from the perspective of negative CO 2 emissions, directly affecting the carbon economy. Knowing that CL technology is a versatile process in terms of the use of fuels in the three states of matter and the increasing availability of coconut shell bagasse biomass in Brazilian territory, there is a need to reuse this industrial waste for other applications. Thus, this proposal aims to evaluate the application of coconut shell biomass in the production of hydrogen or syngas with cogeneration of energy by carrying experiments and developing a process model. The coconut shell biomass will be made available by a well-known supplier, who will deliver it with the ideal characteristics for feeding the CL process. Experimentally, the operational conditions (Temperature of the Reduction Reactor – T RR , oxygen availability – λ or φ, and steam/biomass ratio – S/B) will be evaluated for two operating regimes (iG-CLC/BCLG and CLOU), with one 3³ experimental design (three factors evaluated at three levels) for each process, totalling 54 experiments throughout the thesis. The products generated in the process will be evaluated using online analyzers (SIEMENS/CALOMAT 6 and SIEMENS/ULTRAMAT 23), a chromatograph coupled to a mass spectrometer (GC-MS), and by the Karl-Fischer method. The process model will be developed in a simulation environment (Aspen Plus v11), with macroscopic equations developed in a programming language (Microsoft VBA or Fortran) to be added to the process model through the user-model resource. Based on the experimentally reported results and the implemented model, the process will be optimized and new conditions will be explored.

COMMITTEE MEMBERS:
Presidente - 1584174 - DOMINGOS FABIANO DE SANTANA SOUZA
Interno - 3304882 - CARLOS EDUARDO DE ARAÚJO PADILHA
Externo à Instituição - JUAN ALBERTO CHAVEZ RUIZ - ISI-ER