Oils and products of the distillation of high temperature coal tar; naphthalene

HS v2022 Code: 270740

About oils and products of the distillation of high temperature coal tar; naphthalene

HS code 270740 covers the oils and products derived from the distillation of high-temperature coal tar. This industry plays a crucial role in the broader chemical and energy sectors, providing essential feedstocks and intermediates for a wide range of downstream applications. The distillation of coal tar is a critical step in the production of valuable aromatic compounds, which are then utilized in the manufacture of various chemicals, fuels, and specialty products.

Production process

The production of oils and products under HS code 270740 involves the distillation of high-temperature coal tar. This process typically begins with the heating of coal to high temperatures in the absence of oxygen, a process known as pyrolysis. The resulting coal tar is then subjected to fractional distillation, where the different components are separated based on their boiling points. This separation process yields a range of valuable aromatic compounds, including naphthalene, which is a key output under this code.

Production inputs

The main inputs required for the production of oils and products under HS code 270740 include high-temperature coal tar, which serves as the primary raw material. Additionally, the process requires specialized distillation equipment, such as fractionating columns and condensers, as well as energy sources to power the heating and separation processes. Skilled labor and technical expertise are also essential for the efficient and safe operation of the production facilities.

Production outputs

The primary outputs of the industry covered by HS code 270740 are the various oils and aromatic compounds derived from the distillation of high-temperature coal tar. These include naphthalene, which is a widely used chemical intermediate in the production of 290290 other cyclic hydrocarbons, 291529 other carboxylic acids, and 292229 other oxygen-function amino-compounds. The outputs of this industry are then consumed by a range of downstream industries, such as the 290000 organic chemical, 271000 petroleum and mineral oil, and 292000 nitrogen-function organic chemical sectors.

Revisions to 270740

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 270740. The most recent 1 version of this code (270740) is in the HS v2022 system (this version):

This page shows the most recent version of code 270740.

Family tree for oils and products of the distillation of high temperature coal tar; naphthalene

    graph LR
    A["<a href='/classifications/hs/v2022/27'>27: Mineral fuels, mineral oils and products of their distillation; bituminous substances; mineral waxes</a>"]
A --> B["<a href='/classifications/hs/v2022/2707'>2707: Oils and other products of the distillation of high temperature coal tar; similar products in which the weight of the aromatic constituents exceeds that of the non-aromatic constituents</a>"]
B --> C["<a href='/classifications/hs/v2022/270740'>270740: Oils and products of the distillation of high temperature coal tar; naphthalene</a>"]

    B --> D["<a href='/classifications/hs/v2022/270710'>270710: Oils and products of the distillation of high temperature coal tar; benzol (benzene)</a>"]
B --> E["<a href='/classifications/hs/v2022/270720'>270720: Oils and products of the distillation of high temperature coal tar; toluol (toluene)</a>"]
B --> F["<a href='/classifications/hs/v2022/270730'>270730: Oils and products of the distillation of high temperature coal tar; xylol (xylenes)</a>"]
B --> G["<a href='/classifications/hs/v2022/270750'>270750: Aromatic hydrocarbon mixtures; n.e.c. in heading no. 2707, of which 65% or more by volume (including losses) distils at 250 degrees Celsius by the ISO 3405 method (equivalent to the ASTM D 86 method)</a>"]
B --> H["<a href='/classifications/hs/v2022/270791'>270791: Oils and other products of the distillation of high temperature coal tar; creosote oils</a>"]
B --> I["<a href='/classifications/hs/v2022/270799'>270799: Oils and other products of the distillation of high temperature coal tar; n.e.c. in heading no. 2707</a>"]

    

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