Cyclic hydrocarbons; styrene

HS v2017 Code: 290250

About cyclic hydrocarbons; styrene

HS code 290250 covers cyclic hydrocarbons, with a specific focus on styrene. Styrene is a crucial chemical building block used in the production of a wide range of consumer and industrial products, making it an important component of the global chemical industry. As a versatile aromatic compound, styrene finds applications in the manufacturing of plastics, resins, rubbers, and various other materials that are essential for numerous sectors, including construction, automotive, packaging, and electronics.

Production process

Styrene is primarily produced through the catalytic dehydrogenation of ethylbenzene, which is derived from the reaction of benzene and ethylene. This process involves the use of high temperatures and specialized catalysts to remove hydrogen from ethylbenzene, resulting in the formation of styrene. The purification of styrene is then carried out through distillation to ensure the desired purity and quality levels.

Production inputs

The production of styrene (HS code 290250) requires several key inputs, including ethylbenzene as the primary raw material, as well as energy sources, such as natural gas or electricity, to power the manufacturing process. Additionally, the use of specialized catalysts and equipment, such as reactors, distillation columns, and storage tanks, is essential for the efficient and safe production of styrene.

Production outputs

Styrene (HS code 290250) is a versatile chemical that serves as a building block for a wide range of downstream products. It is a key input for the production of 390300 Monofilament; strip and the like, of plastics, 390950 Amino-resins, phenolic resins and polyurethanes, and 400240 (Styrene-butadiene rubber (SBR); carboxylated styrene-butadiene rubber (XSBR)), among others. These industries utilize styrene to manufacture a diverse array of materials, including plastics, resins, rubbers, and various specialty chemicals.

Revisions to 290250

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 290250. The most recent 1 version of this code (290250) is in the HS v2022 system:

This page shows a legacy version of code 290250 ( HS v2017).

Newer versions
Older versions

Family tree for cyclic hydrocarbons; styrene

    graph LR
    A["<a href='/classifications/hs/v2017/29'>29: Organic chemicals</a>"]
A --> B["<a href='/classifications/hs/v2017/2902'>2902: Cyclic hydrocarbons</a>"]
B --> C["<a href='/classifications/hs/v2017/290250'>290250: Cyclic hydrocarbons; styrene</a>"]

    B --> D["<a href='/classifications/hs/v2017/290211'>290211: Cyclic hydrocarbons; cyclohexane</a>"]
B --> E["<a href='/classifications/hs/v2017/290219'>290219: Cyclic hydrocarbons; cyclanes, cyclenes and cycloterpenes, excluding cyclohexane</a>"]
B --> F["<a href='/classifications/hs/v2017/290220'>290220: Cyclic hydrocarbons; benzene</a>"]
B --> G["<a href='/classifications/hs/v2017/290230'>290230: Cyclic hydrocarbons; toluene</a>"]
B --> H["<a href='/classifications/hs/v2017/290241'>290241: Cyclic hydrocarbons; o-xylene</a>"]
B --> I["<a href='/classifications/hs/v2017/290242'>290242: Cyclic hydrocarbons; m-xylene</a>"]
B --> J["<a href='/classifications/hs/v2017/290243'>290243: Cyclic hydrocarbons; p-xylene</a>"]
B --> K["<a href='/classifications/hs/v2017/290244'>290244: Cyclic hydrocarbons; mixed xylene isomers</a>"]
B --> L["<a href='/classifications/hs/v2017/290260'>290260: Cyclic hydrocarbons; ethylbenzene</a>"]
B --> M["<a href='/classifications/hs/v2017/290270'>290270: Cyclic hydrocarbons; cumene</a>"]
B --> N["<a href='/classifications/hs/v2017/290290'>290290: Cyclic hydrocarbons; n.e.c. in heading no. 2902</a>"]

    

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