Lignite: Lignite, generally yellow to dark brown or rarely black coal that formed from peat at shallow depths and temperatures lower than 100 °C (212 °F). It is the first product of coalification and is intermediate between peat and subbituminous coal according to the coal …
The lowest in carbon content, peat, is followed in ascending order by lignite and the various forms of coal—subbituminous coal or black lignite (a slightly higher grade than lignite), bituminous coal, semibituminous (a high-grade bituminous coal), semianthracite (a low-grade anthracite), and anthracite.
lignite definition: a usually soft, brownish-black coal in which the texture of the original wood can often still be seen: in the process of coalification it represents the intermediate stage in density and amount of carbon between peat and bituminous...
Lignite, often referred to as brown coal, is a soft brown combustible sedimentary rock formed from naturally compressed peat. It is considered the lowest rank of coal due to its relatively low heat content.
Define lignite. lignite synonyms, lignite pronunciation, lignite translation, English dictionary definition of lignite. n. A soft, brownish-black coal in which the alteration of vegetable matter has proceeded further than in peat but not as far as in bituminous coal.
Definition of lignite - a soft brownish coal showing traces of plant structure, intermediate between bituminous coal and peat. ... Definition of lignite in English: lignite. noun mass noun. A soft brownish coal showing traces of plant structure, intermediate between bituminous coal and peat.
A fossil fuel, coal forms when dead plant matter is converted into peat, which in turn is converted into lignite, then sub-bituminous coal, after that bituminous coal, and lastly anthracite. This involves biological and geological processes that take place over a long period.
Lignite has a Lower Rank in the coalification process, meaning this more recent than bituminous and anthracite coals. Called Brown Coal, vast reserves of lignite are available in limited areas of the world.
what means lignite coal. Glossary of Mining Terms Coal Education. 2018-1-4 · A. Abutment In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to ...
'The Tertiary coal of northern Thailand is classified according to coal rank as lignite to bituminous coal.' 'Mining is focused on lignite, bauxite, asbestos, and marble.' 'The plant burns lignite coal from the Maritsa Iztok mining complex and produces a large amount of sulphur dioxide.'
Meaning and Origin. What does the name Coal mean? Find out below. Origin and Meaning of Coal ... the name Coal is of Unknown origin and means "Trustful friend". Submit the origin and/or meaning of Coal to us below. Origin of Coal ... A type of coal, such as bituminous, anthracite, or lignite, and grades and varieties thereof. (countable) A ...
brown coal; lignite; wood coal. Hypernyms ("lignite" is a kind of...): coal (fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period) humate (material that is high in humic acids) Hyponyms (each of the following is a kind of "lignite"):
The installation of CFB boiler technology by GE will enable the plant to reliably generate power from Thar lignite coal, which highlights our commitment to deploy industry leading technology in the country.
A lignite fire is a smoldering underground fire of a seam or deposit of lignite, a low grade (relatively low energy, high polluting) brownish black type of coal. Lignite fires … are often started by lightning strikes and can burn for years.
Webster Dictionary (0.00 / 0 votes) Rate this definition:. Lignite (noun). mineral coal retaining the texture of the wood from which it was formed, and burning with an empyreumatic odor. It is of more recent origin than the anthracite and bituminous coal of the proper coal series.
Types of coal. Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce.
Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat. It is considered the lowest rank of coal due to its relatively low heat content. It has a carbon content around 60–70 percent.
Lignite Dictionary Definition and More from … Common misspellings for lignite. ... and lignite are also excellent means of ameliorating the soil, ... or beds of lignite coal which have been continuously burning ... Get More Info.
Oct 21, 2018· Pitchy lignite, on the other hand, is more similar to coal in appearance. Lignite mining occurs worldwide throughout Europe, Australia, the United States, and Russia. Brown coal production is more common in areas where other types of fuel are scarce.
Peat coal definition is - a natural product intermediate between peat and lignite. a natural product intermediate between peat and lignite; an artificial fuel made by carbonizing peat… See the full definition
The definition of lignite, the meaning of the word Lignite: Is lignite a scrabble word? Yes! n. - Intermediate between peat and bituminous coal; Synonyms of lignite. Show Advanced Options. Starts with: Ends with: Lignite is worth 8 points in Scrabble, and 11 points in Words with Friends.
2. a hot fragment of wood or coal that is left from a fire and is glowing or smoldering Familiarity information: COAL used as a noun is rare. • COAL (verb) The verb COAL has 3 senses: 1. burn to charcoal 2. supply with coal 3. take in coal Familiarity information: COAL used as a verb is uncommon.
a usually soft, brownish-black coal in which the texture of the original wood can often still be seen: in the process of coalification it represents the intermediate stage in density and amount of carbon between peat and bituminous coal
In Great Britain and other countries, the term brown coal is used to describe those low-rank coals (lignite and subbituminous coal) that generally have a brown colour. In Germany lignite, subbituminous coal, and some high-volatile bituminous coals are classified as brown coals (Braunkohle).
Lignite definition is - a usually brownish black coal intermediate between peat and bituminous coal; especially : one in which the texture of the original wood is distinct —called also brown coal. a usually brownish black coal intermediate between peat and bituminous coal; especially : one in which the texture of the original wood is…
Define Lignite coal. Lignite coal synonyms, Lignite coal pronunciation, Lignite coal translation, English dictionary definition of Lignite coal. n. A soft, brownish-black coal in which the alteration of vegetable matter has proceeded further than in peat but not as far as in bituminous coal.