Comparison of two methods to calculate GHG emission reductions in the production of bio-olefins
Konferensbidrag (offentliggjort, men ej förlagsutgivet), 2016

In this work, two different approaches of an attributional LCA are used to calculate the GHG emission reduction potential of a light olefins production process, where fossil feedstock is partly switched to biomass. In the first method (approach A), carbon uptake during biomass growth leads to a negative emissions or a GHG emission reduction and data from the current plant (steam cracker) is used. In the second method (approach B) the biogenic carbon is excluded from the modelling and average data of fossil emissions in the production of light olefins is used. A through discussion is provided indicating the advantages and drawbacks of each method. The results show that a similar saving of GHG emission, defined analogously to current European regulation for biofuels, is achieved (51%-52% vs. 58%, for A and B, respectively) when 25% of fossil feedstock substitution in the production of olefins.

GHG balance

bio-olefins.

methodology comparison

Attributional LCA

drop-in bio-chemicals

Författare

Cristina López Aracil

Maria Arvidsson

Chalmers, Energi och miljö, Industriella energisystem och -tekniker

Pedro García Haro

Proceedings of the 2nd SEE SDEWES Conference, June 15-18 2016, Piran, Slovenia

253.1-253.10

Ämneskategorier

Energiteknik

Kemiska processer

Styrkeområden

Energi