The Effect of Deposit Temperature on the Catalytic SO₂-to-SO₃ Conversion in a Copper Flash Smelting Heat Recovery Boiler

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Juho Lehmusto, Emil Vainio, Tor Laurén, Mari Lindgren
Förläggare: Springer
Publiceringsår: 2018
Tidskrift: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Tidskriftsakronym: Metall and Materi Trans B
Volym: 49
Nummer: 1
Artikelns första sida, sidnummer: 434
Artikelns sista sida, sidnummer: 439
eISSN: 1543-1916


Abstrakt

The aim of the work was to study the catalytic role of copper flash smelter deposit in the SO2-to-SO3 conversion. In addition, the effect of process gas temperature at 548 K to 1173 K (275 °C to 900 °C) on the amount of SO3 formed was addressed both in the absence and presence of genuine copper flash smelter deposit. The SO3 conversion rate changed as a function of process gas temperature, peaking at 1023 K (750 °C). A dramatic increase in the SO2-to-SO3 conversion was observed when process dust was present, clearly indicating that process dust catalyzes the SO2-to-SO3 conversion. Based on these results, the catalytic ability of the deposit may lead to sulfuric acid dew point corrosion.


Senast uppdaterad 2019-16-10 vid 03:09

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