Banca de QUALIFICAÇÃO: PAULO HENRIQUE ALVES DE AZEVEDO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : PAULO HENRIQUE ALVES DE AZEVEDO
DATE: 26/04/2024
TIME: 14:30
LOCAL: Auditório do CTEC
TITLE:

Obtaining Formulations Based on Oily Water and Amine Surfactant for CO2 Capture and Sequestration

KEY WORDS:

CO2, global warming, amino surfactant, CCS.

PAGES: 75
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Tecnologia Química
SPECIALTY: Petróleo e Petroquímica
SUMMARY:

In the world today, there is growing concern about the problems triggered by climate change. Global warming has increased negative consequences across the entire surface of the globe, where in this context studies point to carbon dioxide (CO2) as the main problem responsible above. The energy matrix anchored in fossil fuels has rising consequences without excessive levels of CO2 in the atmosphere. In view of this, CO2 capture and storage (CCS) technologies have emerged with the promise of mitigating, in the short term, the levels of CO2 accumulated in the air. Analysis has been the most used technique to capture CO2 in combustion processes, in which the established absorbent liquids are alkanolamines, such as MEA (methylethanolamine) and MDEA (dimethylethanolamine). Although these substances promote the rapid absorption of CO2, toxicity, thermal instability, among other operational problems, have led to research in the search for new, more sustainable absorbent liquids. Once CO2 has been absorbed into the water, carbonic acid is formed, which dissociates to form carbonate (CO32-), which reacts with calcium (Ca2+) and magnesium (Mg2+) ions to form beneficial salts of calcium carbonate and magnesium carbonate. In this context, the water produced is an oil discharge that emerges as a potential absorbent liquid, as it contains dispersed non-polar substances and a diversity of metals, which can favor the capture of CO2. Furthermore, some research has highlighted the importance of surfactants in capturing CO2, as they can reduce the interfacial tension between the gas and liquid, increasing the stability of the system. Nonionic amino surfactants have not, until now, been explored in the capture of CO2, despite having the amine group, a strong base that captures CO2. Therefore, this proposal involves the development of formulations based on produced water and amino surfactant to capture and trap CO2.

COMMITTEE MEMBERS:
Presidente - 1753094 - ALCIDES DE OLIVEIRA WANDERLEY NETO
Interno - ***.674.113-** - DENNYS CORREIA DA SILVA - UFRN
Externo ao Programa - 1752014 - EDNEY RAFAEL VIANA PINHEIRO GALVAO - UFRNExterno ao Programa - 1198847 - JOSE LUIS CARDOZO FONSECA - UFRNExterno ao Programa - 1754344 - MARCOS ALLYSON FELIPE RODRIGUES - UFRN