Environment Report 2015

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CO can be reduced from offshore installations by optimising combustion through a combination of techniques,
including temperature management (e.g. efficient mixing of the fuel and combustion air) and residence time in the
combustion zone. However, it is also important to note that there is a trade-off between the generation of CO and
NO x emissions due to their occurrence at different combustion temperatures, with CO emissions decreasing with
rising temperatures and NOx emissions increasing with rising temperatures.
Last year almost 38,100 tonnes of VOCs were emitted from offshore installations, a net 52 per cent reduction
when compared to 2000. Meanwhile, 43,100 tonnes of CH4 were emitted, a 27 per cent net reduction when
compared to 2000.
Figure 13: Offshore Emissions of Methane and Volatile Organic Compounds
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
CH₄ and VOC Emissions (Tonnes)
CH₄ Emissions VOC Emissions
Source: EEMS June 2015
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2
3
4
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