macerals

macerals

macerali

English-Croatian dictionary. 2013.

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  • Maceral — A maceral is a component of coal or oil shale. The term maceral in reference to coal is analogous to the use of the term mineral in reference to igneous or metamorphic rocks. Examples of macerals are inertinite, vitrinite and liptinite.… …   Wikipedia

  • coal utilization — Introduction        combustion of coal or its conversion into useful solid, gaseous, and liquid products. By far the most important use of coal is in combustion, mainly to provide heat to the boilers of electric power plants. Metallurgical coke… …   Universalium

  • maceral — ▪ organic compound        Petrologic components in coal and their groupings Petrologic components in coal and their groupingsany of the numerous microscopically recognizable, individual organic constituents of coal with characteristic physical… …   Universalium

  • Exinite — Formerly, in coal geology, exinite was an umbrella term, used when referring to the finely ground and macrerated remains, originally formed by spores, pollen, dinoflagellate cysts, leaf cuticles, plant resins and waxes, as found in coal deposits …   Wikipedia

  • Oil shale geology — Main article: Oil shale Outcrop of Ordovician kukersite oil shale, northern Estonia. Oil shale geology is a branch of geologic sciences which studies the formation and composition of …   Wikipedia

  • coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… …   Universalium

  • feldspar — /feld spahr , fel /, n. any of a group of minerals, principally aluminosilicates of potassium, sodium, and calcium, characterized by two cleavages at nearly right angles: one of the most important constituents of igneous rocks. Also, felspar.… …   Universalium

  • bituminous coal — a mineral coal that contains volatile hydrocarbons and tarry matter and burns with a yellow, smoky flame; soft coal. [1875 80] * * * or soft coal Most abundant form of coal. It is dark brown to black and has a relatively high heat value. Widely… …   Universalium

  • Petrologic components in coal and their groupings — ▪ Table Petrologic components (macerals) in coal and their groupings maceral grouping in Europe macerals maceral grouping in the United States name in Europe* name in the United States** vitrinite telinite megascopic anthraxylon attrital… …   Universalium

  • binder phase — n as used in Test Method D5061, a continuous solid carbon matrix formed during the thermoplastic deformation of those coal macerals that become plastic during carbonization. DISCUSSION The binder phase material is formed from the thermoplastic… …   Coke&Coal Terminology

  • filler phase — n as used in Test Method D5061, a discontinuous solid formed from coal macerals and minerals that do not deform thermoplastically during carbonization. D5061 DISCUSSION The filler phase material is formed from coal macerals that are inert with… …   Coke&Coal Terminology

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