Reducing Mercury Emissions from Coal Combustion in the Energy Sector in Russia: Demonstration of Adding Chemical Reagents to Increase Mercury Capture

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dc.contributor.authorUnited Nations Environment Programme
dc.contributor.authorAll-Russia Thermal Engineering Institute
dc.contributor.organizationEconomy Division
dc.coverage.spatialRussian Federation
dc.date.accessioned2020-02-03T18:20:41Z
dc.date.available2020-02-03T18:20:41Z
dc.date.issued2013-11
dc.descriptionThis document reports a UNEP-supported demonstration to reduce mercury emissions from coal-fired power generation in Russia by injecting oxidizing reagents into the wet particulate scrubber at the Toliatti thermal power plant. Laboratory screening identified potassium permanganate and, preferentially, sodium hypochlorite as effective oxidants for converting elemental mercury to water-soluble forms, while reactions with carbon monoxide were negligible. Building on a closed-loop spray retrofit, pilot tests injected sodium hypochlorite into the scrubber liquor and measured stack mercury with standard sorbent traps, showing total mercury capture increasing from about 20% without chemicals to approximately 55–60% with reagent addition, and near-complete removal of oxidized mercury at modest dosing rates.en
dc.formatText
dc.identifier.urihttps://wedocs.unep.org/handle/20.500.11822/31366
dc.languageEnglish
dc.page.number34 p.
dc.rights.accessLevelPublic
dc.subjectmercury
dc.subjectcoal
dc.subjectcombustion
dc.subjectRussia
dc.subjectchemical
dc.subjectsodium
dc.subjectHealth
dc.subjectIndustry
dc.subjectMercury
dc.subject.sdgSDG 3 - Good Health and Well-Being
dc.subject.sdgSDG 9 - Industry, Innovation and Infrastructure
dc.subject.themechemistry
dc.subject.themechemical pollution
dc.subject.themeadministration
dc.subject.themeenvironmental governance
dc.subject.themeresources
dc.subject.themeresource efficiency
dc.titleReducing Mercury Emissions from Coal Combustion in the Energy Sector in Russia: Demonstration of Adding Chemical Reagents to Increase Mercury Captureen
dc.typeCommunication or other resource

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