Desulphurization of odorous gases of a pulp mill
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United States of America Patent
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Issued Date -
Feb 15, 2007
app pub date -
Oct 4, 2004
filing date -
Oct 3, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a method and an arrangement for the removal of concentrated odorous gases of a pulp mill. According to the method, the concentrated odorous gases containing sulphur compounds are collected from the odorous gases of the sulphite pulp mill and combusted with under air to oxidize the sulphur compounds, so that at least an essential part of the sulphur compounds is oxidized into elemental sulphur. The elemental sulphur is recovered in a liquid or solid form. It can be returned to the process or used in other processes.
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