CO2 Emission Trading Considerations

In the economic formulation it is considered that CO2 emissions credits are bought at the end of each year in order to cope with CO2 emissions that exceed the maximum allowed considered using the BAT. The trading cost and price of emission rights is considered as US 23 which is a proxy of the values currently found in the trading market. 

NPV Impact2002+ kgC02 I Raw mat. Production Product manufacture Transport Electricity 

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One alternative to reduce SC environmental impacts can be to look for new feedstock providers whose production processes are more environmental friendly. It is also important to notice that Human Health impacts are considerable high in both solutions. In the case of NPV optimization this fact is due to benzene toxic properties. It is expected that CO2 emissions trading considerations will make economically more attractive the butane based production. This aspect is analyzed in Sect. 6.4.1. 

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