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SOURCE ACTIVITY TITLE: PROCESSES WITH CONTACT Lime Lime (decarbonizing) NOSE CODE: 104.01.02 NFR CODE:

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Abstract

This chapter includes information on atmospheric emissions during lime work operations. Lime (CaO) is the high-temperature product of the calcination of limestone. The production occurs in vertical and rotary kilns fired by coal, oil or natural gas. Calcium limestone contains between 97 and 98 % of calcium carbonate on a dry basis. The rest includes magnesium carbonate, aluminium oxide, iron oxide and silica. However, some limestone contains as much as 35 to 45 % magnesium carbonate and is classified as dolomite. 2 CONTRIBUTIONS TO TOTAL EMISSIONS Atmospheric emissions in the lime manufacturing industry include particulate emissions from the mining, handling, crushing, screening, and calcining of the limestone and emissions of air pollutants generated during fuel combustion in kilns. These emissions are not very significant on global or even regional scale. However, lime works can be an important emission source of air pollutants on a local scale

Year: 2011
OAI identifier: oai:CiteSeerX.psu:10.1.1.189.4238
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