Biomass Carbon Magnetic Adsorbent Constructed by One-Step Activation Method for the Removal of Hg⁰ in Flue Gas.

ABSTRACT: Elemental mercury (Hg⁰) emission from industrial boilers equipped in factories such as coal-fired power plants poses serious hazards to the environment and human health. Herein, an iron-modified biomass carbon (Fe/BC) magnetic adsorbent was prepared by a one-step method using pepper straw waste as raw material and potassium oxalate and ferric nitrate as activator and catalyst precursor, respectively. A fixed-bed reactor was used to evaluate the Hg⁰ removal performance of the Fe/BC adsorbent. The synthesized adsorbent showed a wide temperature window for Hg⁰ removal. In a N₂ + O₂ atmosphere, the removal efficiency toward Hg⁰ was 97.6% at 150 °C. Further, O₂ or SO₂ could promote the removal of Hg⁰

SUBMITTER: Cui Y 

PROVIDER: S-EPMC8945062 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature