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1203040 
Journal Article 
RECENT TRENDS IN NCG DISPOSAL SYSTEM-DESIGN 
Barynin, JA; Berg, L; Lee, B 
1993 
0 
Pulp and Paper Canada
ISSN: 0316-4004 
94 
12 
74-78 
WOS:A1993MP33600004 
The past public acceptance of kraft mill odor has been replaced with a more active, community concern for mills to clean up their emissions. Often this new attitude has been the driving force for more stringent environmental standards. The major source of these odors are from total reduced sulphur gases (TRS), namely hydrogen sulphide (H2S), methyl mercaptan (CH3SH), dimethyl sulphide (CH3SSCH3). TRS combined with air and water, plus varying amounts of vaporous methanol and turpentine are collectively known as noncondensable gases (NCG). The ''ro ten egg'' odor emanating from the kraft process is objectionable and is often more a nuisance than a safety hazard. However, as these gases are highly toxic, very corrosive and potentially explosive, careful consideration must be given to the design of an NCG disposal system. This paper features the safety aspects of NCG disposal in the context of public issues and mill operation while focussing on the safety considerations involved with NCG equipment and system design. 
DESIGN; DISPOSAL; EMISSION; EXHAUST GAS; GAS; NON-CONDENSABLES; POLLUTION CONTROL; SAFETY; TRENDS; WASTES 
IRIS
• Methanol (Non-Cancer)
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