fixed carbon

fixed carbon

[¦fikst ′kär·bən]
(chemistry)
Solid, combustible residue remaining after removal of moisture, ash, and volatile materials from coal, coke, and bituminous materials; expressed as a percentage.
References in periodicals archive ?
Chemical properties included heating value (higher and lower values), volatile matters, fixed carbon, ash content, nitrogen, sulphur and chlorine.
Feedstocks for gasification are composed of majorly moisture, volatile matter, fixed carbon, and ash.
Proximate analysis was performed to determine the volatile matter, fixed carbon, and ash content (i.
It could be approximately subdivided into three stages: the first stage (135-380 [degrees]C) is the release and combustion of volatile substances of CS, the second stage (380-560 [degrees]C) is the co-combustion of fixed carbon of CS and volatiles of SC, and the third stage (560-700 [degrees]C) is the combustion of fixed carbon of SC.
These samples were tested by applying standard method for the determination of moisture contents, ash contents, volatile matter, fixed carbon, sulfur and gross calorific value.
Various physical and chemical properties of coal influence the value of HGI, including moisture contents, ash, volatile matter and fixed carbon, presence and proportion of various macerals and microlithotypes and composition and distribution of mineral matter (Jorjani et al.
Anthracite contains more fixed carbon than any other type of coal with the least amount of ash and volatile matter.
He adds: "In lower-temperature applications, only the volatile carbon is extracted, leaving the fixed carbon behind as ash or particulate matter.
They are the dominant plants over large areas and are a major storer of fixed carbon, especially in the north.