non-renewable resources 11/15/11. what are non-renewable resources? resources that take millions of...
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What are non-renewable resources?
Resources that take millions of years for the earth to replenish by geological processes within the earth.
Nonrenewable energy= Oil, Coal, Natural Gas, Nuclear
What are renewable resources?
Resources that the earth can replenish in a short (within hundreds of years) time.
Renewable energy sources= Water (hydroelectric), Wind, Solar (perpetual), Geothermal,
How is natural gas extracted?
Drilling (often found with oil) or Fracking
Inputs= metals and fracking instruments + gas sequestration materials.
Outputs= VOC’s released by flaring (CO2, CH4, N2O, SFs), land subsidence, water pollution
How is natural gas processed?
Acid gas removal Dehydration valve fugitive emissions and gas centrifuge (separating gases) compressors
Inputs= centrifuges, compressors (mostly made of metals)
Outputs= VOC’s (CH4, NH3, CO2) released into the air, excess waste water used for processing, excess incineration waste/solid waste
How is natural gas transported?
PipelinesInputs = metal pipes
Outputs= gas leaks, habitat degradation
How is natural gas used?
Burned in power plants
Used to heat homes/source of electricity
Potentially used in automobiles
Inputs = fire/heat source, generators, electrical appliances
Outputs = carbon emission (CH4)
What are the Raw materials of Oil?
Crude Oil For heavy oils = tar sands and heavy crude embedded in shale stone
How is oil Extracted?
DrillingInputs= metals and chemicals to make rigs that last 40 years, electricity for technologyOutputs= Land subsidence, Deforestation, ground water pollution, leaking oil, possible release of natural gas/methane, habitat loss, ocean pollution in deep well drilling
How is oil processed?
Refining in to different products
Inputs = distiller, heater/electrical energy input, water for processing, chemicals
Outputs= end products (motor oil, plastics, diesel, gasoline, jet fuel…etc), waste water + residual liquids and sludge, incineration ash, VOC’s (CO2, NOx, NH3, SOx, H2S), lead
How is oil transported?
Oil Trucks or PipelinesInputs = automobiles, Jets (metals) gasoline…etc.
Outputs = Habitat degradation, groudwater pollution (if it leaks), CO2 emissions
How are petroleum products used?
There are Soooooo many products that are all used differently: vehicles diesel and gasoline, plastics, jet fuel, lubricants, gases, waxes
Inputs= vehicles, jets….etc.
Outputs= non-biodegradable liquid and solid waste (PCB’s), air pollution (CO2)
How can petroleum products be disposed
of? Burning off
Deposited in landfills
Plastics can be recycled
Other LCA’s of Non-renewable resourcesCoal (see previous notes) + previous LCA
Nuclear we will cover this more in depth later
Reactors induce nuclear fission of uranium atoms