Wet catalytic oxidation upcycling semi-dry flue gas desulfurization ash to sustainable gypsum
Hao-Qin Xiong, Jia-Zhuo Qu, Zhe-Xi Luan, Xiaolong Sun, Xiang-Yang Mei
Abstract
lowering activation energy by 40%. Process optimizations ultrasound assisted nanobubbles, micro-scale mass-transfer intensification, and pH control at 5-6 address diffusional and alkaline limitations, while layered double hydroxides and anti-scaling surfaces mitigate chloride poisoning and fouling. By merging mechanistic insights with technological progress, this work maps out a sustainable pathway for SFGDA management.
Topics & Concepts
Flue-gas desulfurizationFlue gasGypsumChemical engineeringSulfurRedoxChemistryCatalysisSulfiteFly ashCoalPolysulfideBimetallic stripChlorideStabilizer (aeronautics)Materials scienceSulfateWaste managementInorganic chemistryIonic liquidPyriteSodium sulfiteEnvironmental scienceBottom ashReuseEnvironmental chemistryIndustrial Gas Emission Control