Environment Report 2015

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 NO x 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 CH 4 were emitted, a 27 per cent net reduction when compared to 2000.

1

2

Figure 13: Offshore Emissions of Methane and Volatile Organic Compounds

3

100,000

CH₄ Emissions

VOC Emissions

90,000

4

80,000

70,000

60,000

5

50,000

40,000

30,000

6

CH₄ and VOC Emissions (Tonnes)

20,000

10,000

0

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

7

Source: EEMS June 2015

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