Is lignite coal?

Answer:
Yes, but very poor grade. Types of coal by grade:
  • Anthracite - hard coal, almost pure carbon, burns very clean
  • Bituminous - soft coal, contains bitumen a tar like material, burns smoky
  • Lignite - very soft coal, often contains unfossilized plant material
  • Peat - cut from peat bogs, must be dried first to remove water


Bituminous coal is often "coked" by roasting in coking oven to make coke, which is of similar grade to natural Anthracite coal. The bitumen vapors driven off make an excellent illuminating gas or fuel for stationary internal combustion engines.
First answer by Eccles-Jordan Trigger. Last edit by Eccles-Jordan Trigger. Contributor trust: 127 [recommend contributor recommended]. Question popularity: 2 [recommend question].

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