Ch 16 Non Renewable Part 1 Oil. Core Case Study: How Long Will the Oil Party Last? Saudi Arabia...
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![Page 1: Ch 16 Non Renewable Part 1 Oil. Core Case Study: How Long Will the Oil Party Last? Saudi Arabia could supply the world with oil for about 10 years. The.](https://reader036.fdocuments.in/reader036/viewer/2022062719/56649ecf5503460f94bdcc26/html5/thumbnails/1.jpg)
Ch 16 Non Renewable
Part 1 Oil
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Core Case Study: How Long Will the Oil Party Last?
• Saudi Arabia could supply the world with oil for about 10 years.
• The Alaska’s North Slope could meet the world oil demand for 6 months (U.S.: 3 years).
• Alaska’s Arctic National Wildlife Refuge would meet the world demand for 1-5 months (U.S.: 7-25 months).
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Core Case Study: How Long Will the Oil Party Last?
• We have three options:– Look for more oil.– Use or waste less oil.– Use something else.
Figure 16-1Figure 16-1
PLAYVIDEO
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TYPES OF ENERGY RESOURCES
• About 99% of the energy we use for heat comes from the sun and the other 1% comes mostly from burning fossil fuels.– Solar energy indirectly supports wind power,
hydropower, and biomass.• About 76% of the commercial energy we use
comes from nonrenewable fossil fuels (oil, natural gas, and coal) with the remainder coming from renewable sources.
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TYPES OF ENERGY RESOURCES
• Nonrenewable energy resources and geothermal energy in the earth’s crust.
Figure 16-2Figure 16-2
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Oil and natural gasOil and natural gasFloating oil drilling
platform Oil storage CoalCoalContour strip miningOil drilling
platform on legs
Geothermal Geothermal energyenergy
Hot water storageOil well
Pipeline Geothermal power plant
Gas well Valves Mined coal
Pump Area strip mining Drilling
tower
Pipeline
Impervious rockUnderground coal mineNatural gasWater
OilWater is heated and brought up as dry
steam or wet steamWater
Coal seam Hot rock
Water penetrates
down through the rock
MagmaPLAYANIMATION
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TYPES OF ENERGY RESOURCES
• Commercial energy use by source for the world (left) and the U.S. (right).
Figure 16-3Figure 16-3
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Fig. 16-3a, p. 357
Nuclear power 6%
Hydropower, geothermal, solar, wind
7%Natural
gas 21%
RENEWABLE 18%
Biomass 11%
Oil 33%
Coal 22%NONRENEW
ABLE 82%
World
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Fig. 16-3b, p. 357
Hydropower geothermal, solar, wind
3%
Nuclear p
ower 8% REN
EWABLE 8%
Coal 23%
Natural gas 23%
Oil 39%
Biomass 4%
NONRENEWABLE 93%
United States
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Total Primary Energy Consumption, 2011
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TYPES OF ENERGY RESOURCES
• Net energy is the amount of high-quality usable energy available from a resource after subtracting the energy needed to make it available.
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Net Energy Ratios
• The higher the net energy ratio, the greater the net energy available. Ratios < 1 indicate a net energy loss.
Figure 16-4Figure 16-4
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Fig. 16-4, p. 358
Space HeatingSpace Heating
Passive solar 5.8Natural gas
Oil 4.5Active solar 1.9
Coal gasification 1.5Electric resistance heating (coal-fired plant) 0.4
0.4
Electric resistance heating (nuclear plant) 0.3High-Temperature Industrial HeatHigh-Temperature Industrial Heat
28.2Surface-mined coalUnderground-mined coal 25.8
Natural gas 4.9Oil 4.7
Coal gasification 1.5Direct solar (highly concentrated by mirrors,
heliostats, or other devices)0.9
TransportationTransportationNatural gas 4.9
Gasoline (refined crude oil) 4.1Biofuel (ethyl alcohol) 1.9
Coal liquefaction 1.4Oil shale 1.2
Electric resistance heating (natural-gas-fired plant)
4.9
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OIL• Crude oil (petroleum) is a thick liquid containing
hydrocarbons that we extract from underground deposits and separate into products such as gasoline, heating oil and asphalt.– Only 35-50% can be economically recovered from a
deposit.– As prices rise, about 10-25% more can be recovered
from expensive secondary extraction techniques.• This lowers the net energy yield.
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OIL• Refining crude oil:– Based on boiling
points, components are removed at various layers in a giant distillation column.
– The most volatile components with the lowest boiling points are removed at the top.
Figure 16-5Figure 16-5
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Gases
Gasoline
Aviation fuel
Heating oil
Diesel oil
Naptha
Grease and wax
Asphalt
Heated crude oil
FurnacePLAY
ANIMATION
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OIL
• Eleven OPEC (Organization of Petroleum Exporting Countries) have 78% of the world’s proven oil reserves and most of the world’s unproven reserves.
• After global production peaks and begins a slow decline, oil prices will rise and could threaten the economies of countries that have not shifted to new energy alternatives.
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OIL
• Inflation-adjusted price of oil, 1950-2006.Figure 16-6Figure 16-6
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Oil
pric
e pe
r bar
rel (
$)
(2006 dollars)
YearCurrent Price per Barrel
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Case Study: U.S. Oil Supplies
• The U.S. – the world’s largest oil user – has only 2.9% of the world’s proven oil reserves.
• U.S oil production peaked in 1974 (halfway production point).
• About 60% of U.S oil imports goes through refineries in hurricane-prone regions of the Gulf Coast.
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OIL
• Burning oil for transportation accounts for 43% of global CO2 emissions.
Figure 16-7Figure 16-7
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Fig. 16-7, p. 363
Trade-OffsConventional Oil
Advantages Disadvantages
Ample supply for 42–93 years Need to find substitutes
within 50 years
Low cost (with huge subsidies)
Artificially low price encourages waste and discourages search for alternatives
High net energy yield
Easily transported within and between countries
Air pollution when burnedLow land use
Releases CO2 when burned
Technology is well developed
Efficient distribution systemModerate water pollution
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CO2 Emissions
• CO2 emissions per unit of energy produced for various energy resources.
Figure 16-8Figure 16-8
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Fig. 16-8, p. 363
Coal-fired electricity 286%
Synthetic oil and gas produced from coal
150%
Coal100%
Oil sand92%
Natural gas58%
Oil86%
Nuclear power fuel cycle
17%
Geothermal10%
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How Would You Vote?To conduct an instant in-class survey using a classroom response system, access “JoinIn Clicker Content” from the PowerLecture main menu for Living in the Environment.
• Do the advantages of relying on conventional oil as the world’s major energy resource outweigh its disadvantages? – a. No. The environmental, political, and economic
costs of petroleum are too high.– b. Yes. Petroleum is needed until suitable
alternatives can be developed and commercialized.
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Heavy Oils from Oil Sand and Oil Shale: Will Sticky Black Gold Save Us?
• Heavy and tarlike oils from oil sand and oil shale could supplement conventional oil, but there are environmental problems.– High sulfur content.– Extracting and processing produces:• Toxic sludge• Uses and contaminates larges volumes of water• Requires large inputs of natural gas which reduces net
energy yield.
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Oil Shales
• Oil shales contain a solid combustible mixture of hydrocarbons called kerogen.
Figure 16-9Figure 16-9
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Tar Sands
PLAYVIDEO
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Heavy Oils
• It takes about 1.8 metric tons of oil sand to produce one barrel of oil.
Figure 16-10Figure 16-10
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Fig. 16-10, p. 365
Trade-OffsHeavy Oils from Oil Shale and
Oil Sand Advantages Disadvantages
Moderate cost (oil sand)
High cost (oil shale)
Low net energy yield
Large potential supplies, especially oil sands in Canada Large amount
of water needed for processing
Easily transported within and between countries Severe land
disruption
Severe water pollutionEfficient
distribution system in place Air pollution
when burned
CO2 emissions when burned
Technology is well developed