Simultaneous CO2/HCl removal using carbide slag in repetitive adsorption/desorption cycles

HCl Removal Using Calcined Ca–Mg–Al Layered Double Hydroxide in the Presence of CO2 at Medium–High Temperature

“…Although incineration is a superior energy generation waste disposal method for conserving land area, serious gas pollution and generation of solid wastes always accompany such processes. Amongst these pollutants, hydrogen chloride (HCl), a harmful gas, can do much harm not only to the human body [5][6][7][8], but also via the corrosion of the incinerator and pipes [9,10]. It has been reported that at medium-high temperature (250-450 • C), HCl can be efficiently converted into polychlorinated dibenzodioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) [11,12].…”

CO2 Capture Performance of Portland Cement‐Based Carbide Slag and the Enhancement of Its CO2 Capture Capacity

“…Among a range of alternative CO 2 capture technologies, the calcium looping process (CLP) is a promising method to remove CO 2 , using a calcium‐based sorbent to capture CO 2 by calcination‐carbonation cycles , . Carbide slag (CS) is a kind of calcium‐based waste with superior CO 2 capture capacity , but is commonly recycled in the form of fine powder . Sun et al tested the particle size distribution of CS from a factory, and the results showed that particles with a particle size smaller than 200 μm accounted for 90.52 %, and with a particle size smaller than 10 μm, for 24 %.…”

Screening of inert solid supports for CaO-based sorbents for high temperature CO2 capture

“…Since then, a great deal of effort has been put into the study of CaO-based CO 2 sorbents. However, it has been found that CaObased sorbents after repeated carbonation/calcination cycles would experience a severe loss-in-capacity problem due to the heavy sintering of CaCO 3 /CaO particle and simultaneous loss of surface area and pore volume [8,9], which greatly restricts the realistic application of CLP. Thus it is of great significance to develop high-reactivity CaO sorbents with stable capacity performance over multiple carbonation/calcination cycles.…”