The simultaneous capture of mercury and fine particles by hybrid filter with powder activated carbon injection

Preparation of Composite Filters Based on Porous Coordination Polymers by Using a Vacuum Filtration Method for Highly Efficient Removal of Particulate Matters

“…The two metal centers showed similar coordination configuration, which were coordinated by four oxygen atoms from two individual PTAl igands, two nitrogen atom from L ligands and one oxygen atom from the coordinated water molecules, to forming ap entagonal bipyramid coordination sphere ( Figure S2a). The bond lengths of CdÀOr ange from 2.306(6) to 2.558 (7) ,C d-N vary from 2.319(8) to 2.482 (9) ,w hich were all in accord with the reported values. [25] Along a axis, two adjacent Cd 2 + ions were connected through PTAl igands to form a1 Dc hain with ab identate-chelating coordination fashion ( Figure S2b).…”

“…The prepared filter played as ignificant role in the captureo ff ine PMs and mercury. [9] Kim and co-workers showedh ierarchical MOFs for PMs removal,the effect was significant. [10] Although such air filters possessed high PMs removal efficiency, the research on PMs removal remained ac hallenge.…”

“…Seo's group designed the hybrid filter by using power activated carbon injection. The prepared filter played a significant role in the capture of fine PMs and mercury . Kim and co‐workers showed hierarchical MOFs for PMs removal, the effect was significant .…”

Influence of Flue Gas Conditions on Mercury Removal by Activated Carbon Injection in a Pilot-Scale Circulating Fluidized Bed Combustion System

“…Carbon-based materials are recognized as the most available sorbents for mercury capture due to its abundant sources and versatility like activated carbon, carbon nitride, porous carbon, etc. − Then, activated carbon injection (ACI) upstream of the ESP/FF is one of the most effective ways to turn Hg 0 and Hg 2+ into Hg P , which can easily be captured by an ESP or an FF baghouse . Jang et al injected powder activated carbon (PAC) during the hybrid filter operation; they found that the speciation fraction of Hg 0 significantly decreased from 85.19% to 3.76% when the injection rate of PAC increased from 0 to 20 mg/m 3 . He et al investigated the optimum injection amount of activated carbon adsorbent in a tangentially fired furnace with the capacity of 250 MW at a full-scale coal-fired power plant.…”

“…Hong et al injected coconut shell AC into simulated pipeline and found the efficiency of mercury removal to be more than 75%. Meanwhile, the speciation fraction of Hg P increased from 1.31% to 94.04% . Quirós-Álvarez et al observed that the recirculation streams and the elevated SO x and H 2 O concentrations might influence the efficiency of mercury removal by modified AC sorbent in a fixed-bed reactor.…”