Coal Combustion Flashcards

(46 cards)

1
Q

Ultimate source of energy for coal

A

Sun

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2
Q

Coal consists of

A

compressed altered remains of vegetation

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3
Q

Coal formation (as it is compressed/lowered)

A
  1. peat
  2. lignite
  3. bituminous coal
  4. anthracite coal
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4
Q

Subjected to highest temperatures/pressures and therefore burns more cleanly

A

Anthracite coal

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5
Q

Coal is considered a ___________ rock

A

Biochemical

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6
Q

Coal is mostly made of

A

Carbon

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7
Q

Combustion reaction

A

Hydrocarbon reacts with O2 and releases a large amount of energy in the form of light and heat and produces CO2 and H20

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8
Q

CH4 + 2O2 –> CO2 + 2H2O

A

Combustion of methane

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9
Q

C3H8 + 5O2 –> 3CO2 + 4H2O

A

Combustion of propane

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10
Q

Combustion reaction is exo or endothermic…why

A

exo - because it releases energy in the form of light and heat

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11
Q

Insufficient oxygen supply during combustion causes

A

Production of carbon monoxide

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12
Q

Colourless, odourless, very poisonous gas

A

Carbon monoxide

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13
Q

Why is carbon monoxide poisiounous

A

Takes the place of O2 in hemoglobin molecule in blood supply of lungs - causing asphyxiation (suffocation)

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14
Q

Main by-product of coal combustion

A

CO2

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15
Q

How many grams of CO2 is produced for every 12g of Carbon burnt

A

44

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16
Q

Contributes to the formation of acid rain

A

sulfur oxide released by coal burning

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17
Q

Datong Coal Mining Group location

A

China

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18
Q

Proportion of CO2 emissions from China

A

1/5 of world

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19
Q

Concerns in China about environment overshadowed by

A

Income created by coal mining industry

20
Q

Coal-fired power plants produce __________ of China’s electricity

21
Q

Percentage of China’s electricity made my solar

22
Q

Percentage of China’s electricity made my wind

23
Q

Domestic use of coal in rural China

A

Primary fuel for cooking due to lack of wood

24
Q

Cause for arsenic poisoning from domestic coal burning in China

A

Drying chilli peppers over coal-burning stoves

25
Casualties from arsenic poisoning caused by domestic coal burning in China
3000 people in Guizhou Province
26
Symptoms of arsenic poisoning
Hyperpigmentation, black skin lesions, cancers
27
Coal, as ppm, in China vs USA
35,000 ppm China 22 ppm USA
28
More than 10 million people in the Guizhou Province (China) affected by
Fluorine poisoning from domestic coal burning
29
Symptoms of fluorine poisoning from domestic coal burning
mottling of tooth enamel, limited joint movement, osteosclerosis, bow legs, spinal curvature
30
Cause of fluorine poisoning in China
Food consumption - eating corn dried over fluorine-rich coal fires
31
Where are the Appalachains
East of USA
32
Historically one of the poorest regions in the USA
Appalachia
33
Why was the Appalachian region perfect for creating a single-industry coal economy to exert control over the people
Due to its poverty
34
All areas of Appalachia share what problems
Rural poverty, inadequate jobs, services, transportation, and infrastructure
35
What did many Appalachians give up to coal mining companies
Rights to land
36
What percentage of residents controls less than half of the land
99
37
Mountaintop removal
Form of surface coal mining: deforestation, then blasting - removes top of mountain to expose coal seams
38
What type of coal mining occurs in the Appalachia
Mountaintop removal
39
Valley fill
Excess soil from MTR dumped into nearby streams or valleys
40
MTR and valley filling can lead to
- fragmentation of forests - conversion of habitats - loss of large tracts and forested areas
41
Health effects of MTR
Cardiovascular diseases, lung cancer, COPD, birth defects
42
Heart defects go up by what percentage in MTR areas
181
43
MTR increases what in watersheds
Salinity, metals, magnesium, and sulfates
44
There are strong correlations between heavy coal mining countries and a greater risk of
Depression and severe psychological distress
45
Is MTR used in Alberta
No
46