N 120 min. Amongst the fuel rich, stoichiometric ratio, and fuel lean
N 120 min. Amongst the fuel rich, stoichiometric ratio, and fuel lean systems, the stoichiometric ratio program is most conductive to solution synthesis, along with the C6 Ceramide Inducer mercury removal efficiency on the obtained solution was the most beneficial. Furthermore, the removal potential of Hg0 was enhanced with the improve in temperature in the test temperature range, and each physical and chemical adsorption play essential roles in the spinel adsorption of Hg0 in the medium temperature range. The addition of O2 can market the removal of Hg0 by adsorbent, however the continuous increase right after the volume fraction reached 10 had little effect around the removal efficiency of Hg0 . Although SO2 inhibited the removal of mercury by adsorbent, the higher the volume fraction, the extra clear the inhibition. Also, in an oxygen-free environment, the addition of a smaller level of HCl can market the removal of mercury by adsorbent, but the addition of extra HCl doesn’t possess a improved promotion effect. Compared with other reported adsorbents, the adsorbent has improved mercury removal overall performance and magnetic properties, and includes a powerful recycling performance. The removal efficiency of mercury can always be maintained above 85 in 5 cycles. Key phrases: mercury removal; magnetic; manganese; cobalt; iron; spinelPublisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.1. Introduction Mercury, as a highly toxic trace element in nature, has attracted wide consideration from environmentalists all over the world as a result of its volatility and bioaccumulation [1]. It mainly exists in nature in the kind of organic mercury, inorganic mercury, and metallic mercury [4]. In China, coal-fired energy plants are the principal supply of mercury emissions, accounting for about 38 [5,6] of total mercury emissions. This predicament has been very valued by the Chinese government. The “Emission typical of air pollutants for thermal energy plants” (GB13223-2011) issued in 2011 clearly stipulated that the mercury emission limit of coal-fired boilers was 30 /m3 or significantly less for the first time [7]. In addition, “the Minamata Convention on Mercury” signed by 128 nations and regions like China has also formally entered into force on 16 August 2017 [8]. To be able to implement the green and sustainable development approach and “the Minamata Convention on Mercury”, the development of high-efficiency and low-cost coal-fired flue gas mercury removalCopyright: 2021 by the authors. Licensee MDPI, Basel, Switzerland. This short article is definitely an open access write-up distributed beneath the terms and situations of the Inventive Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ four.0/).Separations 2021, eight, 225. https://doi.org/10.3390/separationshttps://www.mdpi.com/journal/separationsSeparations 2021, eight,two oftechnology is urgently required. Flue gas mercury is mostly composed of particulate mercury (HgP ), oxidized mercury (Hg2+ ), and elemental mercury (Hg0 ). Among them, HgP could be removed by dust removal gear, and Hg2+ is quickly removed by wet desulfurization equipment, only Hg0 is difficult to eliminate with existing control equipment [94]. At present, the more mainstream coal-fired flue gas mercury removal technologies is still activated carbon injection (ACI) mercury removal technologies, but this technologies has disadvantages which include high cost, poor recovery, and reduced fly ash (Z)-Semaxanib manufacturer quality, which limits its large-scale application [150]. For that reason, there is certainly an.
