Li4SiO4 adsorbent derived from industrial biomass fly ash for high-temperature CO2 capture

Natural Products Derived Porous Carbons for CO2 Capture

“…[ 9 , 63 ] In general, biomass is divided into three types: raw biomass (Lignocelluloses, harvests, and plants), waste biomass (Industrial solid waste and wastewater), and agricultural wastes. [ 64 ] From a chemical point of view, biomass is primarily composed of carbon, oxygen, hydrogen, and nitrogen. The structure of biomass is not confined to these components only but also to some other elements like sulfur, calcium, and magnesium which are present in rather trace amounts.…”

NaNO3-Promoted MgO-Based Adsorbents Prepared from Bischofite for CO2 Capture: Experimental and Density Functional Theory Study

“…With the continuous concern of people on global climate change, CO 2 capture, as an important means to reduce carbon emissions, has received extensive attention from countries around the world. − Compared with high-temperature CO 2 capture adsorbents such as CaO, , Na 4 SiO 4 , , Li 4 SiO 4 , , and ZrSiO 4 , MgO is considered a potential CO 2 capture material because of its wide range of sources, low application temperature (200–400 °C), and high theoretical CO 2 adsorption capacity (110 wt %). − Although MgO has broad application potential in CO 2 capture at intermedium temperature, its actual adsorption capacity (<0.5 mmol/g) is small because of its small specific surface area and slow reaction kinetics . In addressing this problem, Harada and co-workers confirmed that alkali metal nitrate/nitrite doping can significantly improve the performance of MgO for CO 2 adsorption. , Gao et al prepared a series of MgO-based adsorbent materials doped with MNO 3 /NO 2 (M = Li, Na, and K) and demonstrated that NaNO 3 was the key substance contributing to the enhanced adsorption capacity of MgO.…”

“…With the continuous concern of people on global climate change, CO 2 capture, as an important means to reduce carbon emissions, has received extensive attention from countries around the world. 1−5 Compared with high-temperature CO 2 capture adsorbents such as CaO, 6,7 Na 4 SiO 4 , 8,9 Li 4 SiO 4 , 10,11 and ZrSiO 4 , 12 MgO is considered a potential CO 2 capture material because of its wide range of sources, low application temperature (200−400 °C), and high theoretical CO 2 adsorption capacity (110 wt %). 13−15 Although MgO has broad application potential in CO 2 capture at intermedium temperature, its actual adsorption capacity (<0.5 mmol/g) is small because of its small specific surface area and slow reaction kinetics.…”

Li4SiO4-Based Heat Carrier Derived from Different Silica Sources for Thermochemical Energy Storage

“…Recent research has reported that the utilization of an organic lithium precursor to replace Li 2 CO 3 could effectively optimize the structure and morphology of as-prepared Li 4 SiO 4 , thus increasing its heat storage capacity to more than 700 kJ/kg [29,30,33]. Although the effect of the Li source has been revealed, it should be noted that the Li sources will turn to liquid during the high-temperature synthesis of Li 4 SiO 4 , and the Si source is the only solid phase in this process [34,35]. Hence, it could be predicted that the properties of the Si sources used are strongly related to the properties and performance of the obtained Li 4 SiO 4 heat carrier.…”