Hydrothermal Conversion of CO₂into Value-Added Products: A Potential Technology for Improving Global Carbon Cycle

Worldwide innovations in the development of carbon capture technologies and the utilization of CO2

“…For chemical transformation of CO 2 , energy is required, which can be supplied directly by using energy-rich reaction partners or indirectly as heat, light or electricity (Scheme 3). 4,10 The energy supply may likewise coincide with emissions of carbon dioxide. To minimize the CO 2 -footprint, the utilization of energy from renewable resources (e.g., electricity from wind power stations) is particularly interesting.…”

Hydrothermal CO 2 reduction using biomass derivatives as reductants

“…However, additional mechanisms are present because the oxidation of glycerine yields lactic acid. Jin et al also demonstrated that glucose can act as reducing agent to convert bicarbonate as source of CO 2 into formic acid [30] The NaHCO 3 and reductant solutions were loaded in the reactor, filling the 50% of its total volume. The reactor was placed then in an electric oven previously heated to the desired reaction temperature300ºC.…”

Capturing and using CO2as feedstock with chemical looping and hydrothermal technologies

“…Hydrothermal processes involve aqueous chemical reactions under high temperature (200-350°C) and high pressure (around 15-20 MPa) and can produce biocrude, biochar, organic acids, methanol, methane, and other value-added chemical products directly from biomass and carbon dioxide. Some added benefit of hydrothermal systems are the following: (i) little significant char/coke formation occurs during reactions and (ii) biomass drying is avoided [19,[158][159][160][161][162][163]. The initial reaction is the hydrolysis of cellulose to glucose, which is the main difference to dry thermo chemical conversion of a biomass.…”