Photo from wikipedia
Abstract Rice husk, as an abundant agricultural waste and renewable biomass, is adopted to produce porous silica which is used as a potential carbon-free adsorbent for mercury emission control of… Click to show full abstract
Abstract Rice husk, as an abundant agricultural waste and renewable biomass, is adopted to produce porous silica which is used as a potential carbon-free adsorbent for mercury emission control of coal-fired power plants. The rice husk derived porous silica (RHS) exhibits a good Hg0 adsorption capability with Hg0 removal efficiency above 80% in the temperature range of 60–140 °C, which is plausibly due to the big specific surface area and mesoporous structure. The mercury removal performance of RHS can be evidently reinforced by KBr modification. The optimal KBr loading value and reaction temperature are 2 wt% and 140 °C, respectively. Acidic gas components, such as NO and SO2, both show slight inhibitive effects on Hg0 adsorption process probably owing to the competitive adsorption or the elimination of adsorption sites.
Journal Title: Journal of the Energy Institute
Year Published: 2021
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!