Αποτελέσματα Αναζήτησης
28 Ιουν 2024 · Ocean alkalinity enhancement (OAE) reduces the concentration of dissolved carbon dioxide (CO 2) in seawater, leading to atmospheric carbon dioxide removal (CDR). Here we report laboratory...
Keith et al.20 propose a continuous looping process fi. consisting of an aqueous potassium hydroxide (KOH) sorbent coupled with a calcium caustic recovery loop. The KOH sorbent reacts with CO2 in...
4 Φεβ 2021 · Introduction. The effects of unchecked CO 2 emissions on global climate change are being increasingly seen and felt across the world. Examples of issues include increased land and sea...
30 Μαρ 2022 · In such processes, MgO reacts with water (H 2 O) to form brucite (Mg(OH) 2), which generally has a weak and porous structure. However, hydrated MgO has a strong ability to absorb CO 2 and produce carbonated products at a strength useful for construction purposes.
2 Φεβ 2024 · Step 2a: The solids are separated from the catholyte effluent. Residual Ca 2+ in the catholyte precipitates as CaCO 3 in a carbonation reactor, while Mg(OH) 2 solids (a) are discharged into the ocean, or (b) pre-equilibrated with seawater and carbonated inside the plant’s battery limits under dilute (mass) conditions (Case 1),
Two scenarios are presented: (1) the precipitation of calcium carbonate and magnesium hydroxide (Mg(OH) 2: brucite), with Mg(OH) 2 dispersed as solids or dissolved in seawater and pre-equilibrated with CO 2 under dilute conditions, and (2) the precipitation of calcium and hydrated magnesium carbonates, i.e., when Mg(OH) 2 is carbonated under ...
carbon dioxide studies in seawater: total dissolved inorganic carbon, total alkalinity, pH, and p(CO 2) – the partial pressure of carbon dioxide that is in equilibrium with a water sample (Box 1.1). The concept of calcium carbonate saturation state will also be introduced.
