of mineral resources Luis Gabriel Carmona MARETEC Department of Mechanical Engineering Instituto Superior Técnico Universidade de Lisboa Portugal Material flow of the World 2012 In measuring tonnes an overemphasis is placed on those elements that are extracted in large quantities at th ID: 815527
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Slide1
Exploring the exergy intensity of mineral resources
Luis Gabriel Carmona
MARETEC, Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Portugal
Slide2Material flow of the World - 2012
In measuring tonnes, an overemphasis is placed on those elements that are extracted in large quantities at the detriment to those extracted less
Tukker
,
et al (
2014). The global resource footprint of nations.
Slide3An energy intense sector
Globally, energy required by the non-fuel mineral sector has increased its share in the industrial energy consumption from 30% to 41% between 1970 to 2009
Slide4Exergy analysis and exergy replacement costs
Exergy
replacement costs: minimum amount of
exergy
that would be expended in recovering the deposit from a dispersed state with the available technology.
Thanatia
,
state of the Earth where all resources have been consumed and are dispersed.
Methodolody
SExA
Slide5Scope
Exergy analysis of the mineral wealth and extraction in
Australia (1900-2009) and Colombia (1990-2011).
Analysis centered in representative non-fuel minerals from:
Colombia
:
gold, silver, nickel, copper, iron, limestone
Australia: iron, bauxite, copper, gold, lead, zinc, silver, nickel, uranium, manganese
Slide6Exergy Analysis for the Loss of Colombian Mineral Wealth… Non-fuels minerals
The total amount of the exergy replacement cost since 1990 is equivalent to 41.460
ktoe
, what
represents1.5
times of
a yearly primary energy supply for the country.
Exergy vs.
Exergy
Replacement Cost of non-fuel minerals in Colombia
Slide7Slide8Slide9Australian mineral production
Slide10ERC of Autralian mineral capital
Slide11Energy intensiy vs ore grade
Slide12Future research
Exergy
Losses
Process
System boundaries
Slide13Thank you for your attention.