23 documents found, page 1 of 3
Laboratory experiments and modelling of the geochemical interaction of a gabbro...
Berrezueta, Edgar; Moita, Patricia; Pedro, Jorge; Abdoulghafour, Halidi; Mirão, José; Beltrame, Massimo; Barrulas, Pedro; Araújo, AlexandreThe potential for mineral carbonation of carbon dioxide (CO2) in a plutonic mafic rock is addressed in this work through a set of laboratory experiments on a gabbro-anorthosite sample from the Torrão - Odivelas Massif (Portugal). The experiment was conducted in two stages under pressure (8 MPa) and temperature (313.15 K) conditions similar to those expected around a CO2 injection well. Stage-I simulated dissolu...
Avaliação do potencial dos maciços gabróicos do Alentejo para a carbonatação mi...
Pedro, Jorge; Carneiro, Júlio; Moita, Patricia; Berrezueta, Edgar; Araújo, Alexandre; Marques, Fábio; Pinho, Catarina; Caeiro, HelenaThe InCarbon project assessed the potential of gabbroic rocks for CO2 storage in alentejo. Lab carbonation experiments were carried out on gabbroic rocks from the Sines and Odivelas massifs. After gabbroic samples exposure to supercritical CO2-rich brine inside an autoclave, for 90 days, the XRD analysis reveals the presence of dolomite on sample surface, whereas the chemical mapping, by SEMEDS, suggest a spati...
Comunicar sobre Armazenamento Geológico de CO2: O projeto InCarbon na comunidad...
Pinho, Catarina; Carneiro, Júlio; Moita, Patricia; Pedro, JorgeO projeto InCarbon promoveu uma ação de divulgação sobre tecnologias de mitigação de alterações climáticas, na Captura e Armazenamento Geológico de CO2 (CCS – CO2 Capture and Storage), “Devolver o Carbono à sua Origem” para alunos do ensino secundário. Composta por 3 etapas: 1: inquérito diagnóstico sobre alterações climáticas e CCS; 2: palestra sobre o tema e o contributo do InCarbon; 3: inquérito de avaliação...
Preliminary assessment of CO2 storage potential of deep saline aquifers in the ...
Pedro, Jorge; Moita, Patricia; Ribeiro, Carlos; Kilpatrick, Andrew; Edlmann, Katriona; Wilkinson, Mark; Afonso, Paula; Barradas, João; Carneiro, JúlioThe reduction of atmospheric CO2 through its safe geological storage, as CCUS techniques is one of the goals to achieve the 2050 commitment. Within the scope of thePILOTSTRATEGY project, two sedimentary sequences Triassic (on-shore) and Cretaceous (off shore) were object of a detailed study in order to evaluate their potential as CO2storage complexes in the Lusitanian basin (west Portuguese margin). A multi-dis...
Geochemical evolution of cumulate-gabbro Interaction with Seawater and Supercri...
Moita, Patricia; Berrezueta, Edgar; Pedro, Jorge; Mirão, José; Beltrame, Massimo; Carneiro, JúlioThis study investigates the potential for mineral carbonation of carbon dioxide (CO2) in plutonic basicrocksthroughaseriesoflaboratoryexperimentsconductedintwostages, under pressure (8 MPa) and temperature conditions (313.15 K) akin to those near a CON injection well. Stage-I facilitateddissolutionwithcrushedrockexposedtoCO2supersaturatedseawater (0.6M), while Stage-ll promoted carbonation through cubic rock sp...
A Geo-energia em Portugal – o contributo do conhecimento geológico para a trans...
Carneiro, Júlio; Pereira, Pedro; Ribeiro, Carlos; Martins, José Manuel; Araújo, Alexandre; Moita, Patricia; Pedro, Jorge; Marques, FábioA implementação das tecnologias de armazenamento geológico de dióxido de carbono e de energia requer um conhecimento detalhado da geologia profunda das bacias sedimentares. As atividades resultantes da prospeção e pesquisa de petróleo conduzidas em Portugal permitiram o consolidar de um legado inestimável em termos de dados, informação e metodologias que constituem a principal fonte de conhecimento sobre formaç...
Mineralogical and chemical changes induced by experiments of interaction betwee...
Moita, Patricia; Berrezueta, Edgar; Abdoulghafour, Halidi; Beltrame, Massimo; Mirão, José; Ribeiro, Carlos; Barrulas, Pedro; Pedro, JorgeThe focus of this research is a qualitative study of mineralogical and chemical changes in plutonic mafic rock samples after exposure to a CO2-rich brine, under supercritical conditions (SC), to clarify the behavior of brine and rock in the initial stages of mineral carbonation. The studied rock consists of a gabbro-anorthosite from the Odivelas massif, in southern Portugal. The sample was exposed to a SC CO2-r...
Chemical-physical agents and biodeteriogens in the alteration of limestones use...
Columbu, Stefano; Sitzia, Fabio; Bachetta, Gianluigi; Podda, Lina; Calvia, Giacomo; Coroneo, Valentina; Pirinu, Andrea; Josè, Mirao; Moita, PatriciaThe alteration of rocks is usually due to the chemical-physical processes that are initially established on the outer surface of the stone and gradually proceed towards the inner matrix. The chemical alteration generated by the interaction with atmospheric agents (weathering) involves the transformation of the mineral phases constituting the rock that are less stable in the current climatic conditions. That oft...
On the Two Working Palettes of Almada Negreiros at DN Building in Lisbon (1939–...
Gil, Milene; Costa, Mafalda; Cardoso, Ana; Valadas, Sara; Helvaci, Yigit; Bhattacharya, Sriradha; Moita, Patricia; Candeias, AntónioThis paper reports the first analytical approach carried out on two working palettes by Portuguese modernist master Almada Negreiros, found in 1991 behind old wood cabinets at the DN building in Lisbon. This is the only known occasion Almada left behind the color experiments done before starting to paint in the nearby walls and as such, it is a unique opportunity to analyze the materials and painting techniques...
A combined petrographic and geochemical metrological approach to assess the pro...
Schiavon, Nicola; Ding, Yufan; Mirao, José; Dias, Luis; Moita, Patricia; Redol, Pedro; Grassini, Sabrina; Angelini, EmmaTo verify the provenances of limestones that were used for construction and restoration of the Batalha Monastery, limestone quarries in central Portugal were investigated. Samples were collected from quarries and monastery in field investigation. The elements-alignment of calcium and strontium based on XRF result has suggested the source of fragments from different parts the monastery. Observation of the thin s...