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Non-renewable Resources. 11/15/11. 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? .
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Non-renewable Resources 11/15/11
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,
Natural Gas (life cycle analysis)
What are the raw materials of Natural Gas? • Natural Gas
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? • Pipelines • Inputs = 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)
How is natural gas disposed of? • Burned off/released into the air.
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? • Drilling • Inputs= metals and chemicals to make rigs that last 40 years, electricity for technology • Outputs= 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 Pipelines • Inputs = 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 resources • Coal (see previous notes) + previous LCA • Nuclear we will cover this more in depth later • Reactors induce nuclear fission of uranium atoms
Renewable Energy Sources • Hydroelectric • Geothermal • Solar = perpetual resource • Wind • Motion = wave motion