Pilot Testing of Calcium Looping at TRL7 with CO Capture Efficiencies toward 99.

Postcombustion CO capture by calcium looping using circulating fluidized bed technology, CFB-CaL, is evolving to tackle industrial sectors that are difficult to decarbonize. In addition to the known advantages of CFB-CaL (i.e.

Carbonation Rates of Dry Ca(OH) Mortars for CO Capture Applications at Ambient Temperatures.

The carbonation rates of porous mortars, pellets, and extruded forms of Ca(OH) were determined to investigate their suitability as functional materials for direct air capture. Samples of 4-15 mm thickness and porosities between 0.2 and 0.

Experimental Investigation of Sulfation Phenomena in Calcium Looping Systems Integrated in Cement Plants.

The sulfation phenomena of raw meal materials involved in calcium looping (CaL) applications to capture CO from cement plants are investigated. The effects on sulfur capture capacity and reaction rates of different raw meals, temperatures, SO concentration, and degree of belite conversions have been investigated using a thermogravimetric analyzer. SO is shown to react with both free CaO and CaO in belite.

Carbonation Kinetics of Ca(OH) Under Conditions of Entrained Reactors to Capture CO.

The use of Ca(OH) as a CO sorbent instead of CaO in calcium looping systems has the advantage of a much faster reaction rate of carbonation and a larger conversion degree to CaCO. This work investigates the carbonation kinetics of fine Ca(OH) particles (<10 μm) in a range of reaction conditions (i.e.

Recommendations for use of antigenic tests in the diagnosis of acute SARS-CoV-2 infection in the second pandemic wave: attitude in different clinical settings.

The high transmissibility of SARS-CoV-2 before and shortly after the onset of symptoms suggests that only diagnosing and isolating symptomatic patients may not be sufficient to interrupt the spread of infection; therefore, public health measures such as personal distancing are also necessary. Additionally, it will be important to detect the newly infected individuals who remain asymptomatic, which may account for 50% or more of the cases. Molecular techniques are the "gold standard" for the diagnosis of SARS-CoV-2 infection.