Enhanced mercuric chloride adsorption onto sulfur-modified activated carbons derived from waste tires

The application of spent tyre activated carbons as low-cost environmental pollution adsorbents: A technical review

“…Adsorption of HgCl2 from flue gases onto STAC has been reasonably successful, demonstrating similar adsorptive equilibrium capacities at 25°C (0.14 to 0.16 mg•g -1 ; Lin et al, 2006;Yuan et al, 2012) to CAC (0.16 to 0.17 mg•g -1 ; Lin et al, 2006), when surface area was similar (Figure 5b). As with Hg 0 adsorption, the breakthrough capacity curves are used to calculate HgCl2 capacity.…”

“…Commercially available AC is currently in use as a means for vapour phase Hg 0 and HgCl2 removal from coal power plant flue gas streams and natural gas reservoirs (Eckersley, 2010). Various studies have shown that STAC may be a viable alternative to CAC (Table 3; Skodras et al, 2007;Wójtowicz et al, 2007;Yuan et al, 2012), with comparable capacity to commercially available products (Wójtowicz et al, 2007). All cases discussed below used physical activation methods at temperatures between 800-950°C.…”

“…Maximum equilibrium capacity of (a) Hg 0 (Skodras et al, 2007;Sun et al, 1997;Wójtowicz et al, 2007Wójtowicz et al, , 2004) and (b) HgCl2 (Ie et al, 2012;Lehmann et al, 1998;Lin et al, 2006;Yuan et al, 2012) adsorbed onto STAC ( ) and CAC ( ) against BET surface area. The ellipse marks the range of Hg 0 adsorption capacity onto CAC (Wójtowicz et al, 2007).…”

Ανάπτυξη Ολοκληρωμένου Συστήματος Πυρόλυσης Χρησιμοποιημένων Ελαστικών Με Ενεργειακή Αξιοποίηση Για Την Παραγωγή Ανθρακούχων Υλικών

“…Alternatively, an emerging application of ELTs char, includes their use on sulfur-doped porous carbons manufacturing, benefitted by the sulphur impregnation occurring at high temperatures (T>800°C) [157,158]. The obtained products may be utilized in a wide range of applications including catalyst support (Sulfur species are often used as the capping agents for metal particles), sorption operations, as well as in the areas of energy conversion and storage applications [159][160][161].…”

“…The calculated N2 SBET surface areas of several ELTs-based AC, produced under certain activation conditions are presented in Table 5-1, [38,43,104,144,150,151,157,158,178,190,.…”