COS, CS2 and SO2 in Aluminium Smelter Exhaust - The Contribution of Aluminium Production to the Global COS Budget

被引：15

作者：

Harnisch, Jochen ^{[1
]}

Borchers, Reinhard ^{[1
]}

Fabian, Peter ^{[2
]}

机构：

[1] Max Planck Inst Aeron, D-37189 Katlenburg Lindau, Germany

[2] Univ Munich, Inst Bioklimatol & Immis Forsch, D-85354 Freising Weihenstephan, Germany

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 1995年 / 2卷 / 04期

关键词：

carbonyl sulfide; carbondisulfide; sulfur dioxide; carbon monoxide; stratosphere; sulfate aerosol; background aerosol; ozone depletion; aluminium production; electrolysis; anodic gas; anode carbon; coal; sulfur content; inert anodes; Hall-Heroult process;

D O I：

10.1007/BF02986771

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Measurements of carbonyl sulfide (COS) and carbondisulfide (CS2) were carried out on samples drawn from a smoke stack of an aluminium smelter. Volume mixing ratios of 6 ppm COS and 0.1 ppm CS2 were measured for gases from the electrolysis unit that had previously passed an Al2O3 fluid bed reactor and electrostatic precipitators. Specific emissions of 1.6 kg COS and 0.03 kg CS2 per ton of primary aluminium were found. Extrapolating from this particular smelter's conditions to a world mix specific COS emissions of about 4 kg/t(Al) are calculated resulting in emissions of annually 0.08 Tg COS into the atmosphere due to electrolytic aluminium production in 1995. Besides the photochemical conversion of anthropogenic CS2 aluminium production is established to be the second major industrial source of COS probably exceeding automotive tire wear's and coal combustion's contributions.

引用

页码：229 / 232

页数：4

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