Banca de QUALIFICAÇÃO: FABÍOLA CORREIA DE CARVALHO

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : FABÍOLA CORREIA DE CARVALHO
DATA : 19/09/2019
HORA: 09:00
LOCAL: Sala de Reunião do Laboratório de Combustíveis da UFRN
TÍTULO:

Carbon gas and methane adsorption using meso-macropures hybrid materials

PALAVRAS-CHAVES:

Adsorption; Carbon dioxide; Methane; Natural gas; Porous silica; Meso-macroporous Hybrid Materials

PÁGINAS: 100
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Química
RESUMO:

Natural Gas (NG) production in Brazil has shown a significant increase in recent years, mainly with the operations of pre-salt platforms. Oil and Natural Gas exploration and refining activities account for 86% of CO2 emissions, representing a serious problem for environmental issues related to greenhouse gas emissions and increased global warming as CO₂ is the main responsible for these weather effects. Thus, new material technologies for CO₂ capture have been shown to be efficient in relation to conventional processes. In this work, meso-macroporous hybrid materials were synthesized for carbon dioxide and methane adsorption. These materials are promising for use in natural gas treatment systems as they have specific porosities for gas capture and storage. The adsorbent was obtained from silica, sodium silicate and a decane emulsion in acid medium. The physicochemical characteristics of the material were determined by thermogravimetry, X-ray diffraction, Scanning electron microscopy and the BET method. Adsorption capacity tests were performed for CO₂, methane and their mixtures in a magnetic suspension microbalance. The experimental values obtained were compared and adjusted to the Langmuir and Freundlich models. It was found that the materials used were promising for adsorption of carbon dioxide, methane and their mixtures, under low pressure.

MEMBROS DA BANCA:
Externa à Instituição - ANA CATARINA FERNANDES CORIOLANO - UnP
Presidente - 350509 - ANTONIO SOUZA DE ARAUJO
Externo à Instituição - JUAN ALBERTO CHAVEZ RUIZ - ISI-ER