20:
382:
19:
648:
638:
606:
272:
94:
169:
633:
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222:
194:
461:
62:
Sub-bituminous coals may be dull, dark brown to black, soft and crumbly at the lower end of the range, to bright
93:. Their relatively low density and high water content renders some types of sub-bituminous coals susceptible to
314:
67:
74:(undergo little swelling upon heating). The heat content of sub-bituminous coals range from 8300 to 11,500
653:
70:, and relatively strong at the upper end. They contain 15-30% inherent moisture by weight and are non-
451:
122:
51:
704:
Note: Peat is considered a precursor to coal. Graphite is only technically considered a coal type.
523:
436:
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199:
683:
134:
658:
466:
513:
411:
518:
493:
75:
8:
596:
456:
243:
50:, the second-highest grade of coal. Sub-bituminous coal is primarily used as a fuel for
668:
611:
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571:
528:
307:
106:
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548:
401:
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145:
663:
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361:
179:
47:
543:
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138:
721:
715:
300:
63:
218:
688:
79:
621:
616:
558:
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189:
97:
if not packed densely during storage in order to exclude free air flow.
366:
174:
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576:
566:
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441:
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371:
90:
381:
273:"NZ imported more than a million tonnes of 'dirty' coal last year"
105:
A major source of sub-bituminous coal in the United States is the
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24:
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488:
406:
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35:
533:
292:
649:
Health and environmental impact of the coal industry
639:
Environmental justice and coal mining in
Appalachia
250:. The Babcock & Wilcox Company. pp. 36–5.
42:. The properties of this type are between those of
151:Sub-bituminous coals release large quantities of
713:
155:when burned, compared to higher grades of coal.
16:Lower grade of coal that contains 35–45% carbon
308:
170:Greenhouse gas emissions#Carbon dioxide (CO2)
133:, which makes them an attractive choice for
315:
301:
46:, the lowest grade of coal, and those of
18:
714:
607:mining disasters in the United States
296:
27:holding a lump of sub-bituminous coal
270:
13:
634:Environmental issues in Appalachia
14:
733:
223:Energy Information Administration
380:
195:Coal mining in the United States
52:steam-electric power generation
264:
235:
211:
116:
1:
271:Bond, Jordan (14 July 2021).
248:Steam: its generation and use
205:
121:Sub-bituminous coals, in the
57:
7:
158:
100:
38:that contains 35–45%
10:
738:
654:Health effects of coal ash
462:power in the United States
702:
557:
389:
378:
330:
524:Greenhouse gas emissions
322:
200:Coal-fired power station
129:content less than 1% by
684:Problems in coal mining
659:History of coal mining
95:spontaneous combustion
28:
514:Fossil fuel phase-out
412:Black coal equivalent
22:
519:Great Smog of London
452:pollution mitigation
244:Babcock & Wilcox
144:emissions under the
34:is a lower grade of
437:fired power station
432:combustion products
357:Sub-bituminous coal
334:(lowest to highest)
331:Coal types by grade
125:, typically have a
32:Sub-bituminous coal
572:Black lung disease
549:Toxic heavy metals
529:Metallurgical coal
107:Powder River Basin
29:
709:
708:
467:preparation plant
402:Asian brown cloud
335:
146:Acid Rain Program
729:
664:Hydrogen sulfide
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246:Company (2005).
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219:"Coal explained"
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153:greenhouse gases
82:or 19.3 to 26.7
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390:Coal combustion
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362:Bituminous coal
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180:Bituminous coal
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48:bituminous coal
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12:
11:
5:
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669:Mining regions
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597:homogenization
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544:Sulfur dioxide
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457:power in China
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165:Types of Coal
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123:United States
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26:
21:
689:Refined coal
602:liquefaction
494:Energy value
356:
282:24 September
280:. Retrieved
276:
266:
247:
237:
226:. Retrieved
213:
150:
135:power plants
120:
104:
61:
31:
30:
23:An American
559:Coal mining
509:Fossil fuel
190:Coal mining
117:Application
582:Coalfields
367:Anthracite
228:2020-09-26
206:References
175:Anthracite
137:to reduce
58:Properties
694:Whitedamp
679:Peak coal
674:Outbursts
577:Coal dust
567:Blackdamp
472:seam fire
447:phase-out
64:jet-black
716:Category
644:Firedamp
499:Flue gas
422:Charcoal
397:Ash pond
372:Graphite
159:See also
101:Reserves
504:Fly ash
352:Lignite
185:Lignite
111:Wyoming
44:lignite
25:rancher
622:slurry
617:refuse
489:Coking
407:Asthma
254:
131:weight
127:sulfur
72:coking
40:carbon
342:Xylit
722:Coal
627:town
587:Coal
539:Smog
484:Coke
427:Coal
417:Char
347:Peat
324:Coal
284:2023
252:ISBN
242:The
68:hard
36:coal
592:gas
534:NOx
477:tar
442:gas
277:RNZ
109:in
76:BTu
718::
275:.
221:.
148:.
139:SO
113:.
91:kg
80:lb
66:,
54:.
316:e
309:t
302:v
286:.
260:.
231:.
141:2
89:/
87:J
84:M
78:/
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
