Regular coke

Low sulfur and ash levels are required for high GTE, isotropic cokes used for carbon and graphite specialty products. Highly isotropic cokes are also the filler materials for producing graphite for nuclear reactors. The purity, particularly the boron content, is critical in this appHcation. Properties of typical needle and isotropic (regular) cokes are summarized in Table 1. 

Shot Coke. Another form, generally undesirable, of regular coke is formed as small spheres often held together in a matrix of sponge coke or in large spheres of shot coke alone. The formation is highly dependent upon feedstocks such as Maya, West Texas Sour and... 

The most common upstream processing methods for producing regular coke feedstocks are atmospheric and vacuum distillation. Another upstream feedstock preparation process is visbreaking. 

A general description of the carbonization processes using the characterization methods for widely used coke products like binder coke, regular coke, and needle coke is given in this review. The... 

The sponge-type regular coke from the delayed coking of petroleum residues (petroleum coke) and coal-tar pitch (pitch coke), along with pitch coke from the horizontal-chamber coking process, are principally used in the manufacture of anodes for the aluminum industry (see Chapter 13.1.3). 

Property Premium coke calcined at 1620 K Regular coke Metallurgical coke... 

Premium coke is an extremely well graphitizing carbon with a high degree of optical anisotropy (isochromatic areas of optical texture above about 100 pm) and is characterized by a combination of the following properties which differ significantly from those of regular coke high real density, low reversible thermal expansion, and low ash content combined, in most cases, with low sulfur content. 

See coal tar pitch, delayed coking process, regular coke... 

Typical characteristics for regular coke in comparison with those 0/metallurgical coke and 0/premium coke calcined at 1620 K are ... 

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