Acyclic hydrocarbons; unsaturated, butene (butylene) and isomers thereof

HS v2017 Code: 290123

About acyclic hydrocarbons; unsaturated, butene (butylene) and isomers thereof

HS code 290123 covers the classification of acyclic unsaturated hydrocarbons, specifically butene (butylene) and its isomers. These compounds are essential building blocks in the petrochemical industry, serving as feedstocks for the production of a wide range of downstream products. The global trade and production of these hydrocarbons play a crucial role in supporting various industries, from plastics and rubbers to fuels and lubricants, making this code an important part of the broader chemical and energy sectors.

Production process

Butene and its isomers are typically produced through the thermal or catalytic cracking of larger hydrocarbon molecules, such as naphtha or natural gas liquids. The main production techniques involve steam cracking, fluid catalytic cracking, and various distillation processes to isolate and purify the desired butene isomers from the complex hydrocarbon mixtures.

Production inputs

The primary inputs for the production of 290123 (acyclic hydrocarbons; unsaturated, butene (butylene) and isomers thereof) include crude oil, natural gas, and other hydrocarbon feedstocks. Specialized equipment, such as cracking furnaces, distillation columns, and catalytic reactors, are also essential for the various processing steps involved in the production of these compounds.

Production outputs

The main outputs of HS code 290123 are the various butene isomers, including 1-butene, 2-butene, and isobutene. These compounds are then used as feedstocks for the production of a wide range of downstream products, including 290250 Styrene, 290311 Ethylene, 290320 (Propene (propylene)), and 290330 Butenes, butadiene and methylbutadienes, among others.

Revisions to 290123

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 290123. The most recent 1 version of this code (290123) is in the HS v2022 system:

This page shows a legacy version of code 290123 ( HS v2017).

Family tree for acyclic hydrocarbons; unsaturated, butene (butylene) and isomers thereof

    graph LR
    A["<a href='/classifications/hs/v2017/29'>29: Organic chemicals</a>"]
A --> B["<a href='/classifications/hs/v2017/2901'>2901: Acyclic hydrocarbons</a>"]
B --> C["<a href='/classifications/hs/v2017/290123'>290123: Acyclic hydrocarbons; unsaturated, butene (butylene) and isomers thereof</a>"]

    B --> D["<a href='/classifications/hs/v2017/290110'>290110: Acyclic hydrocarbons; saturated</a>"]
B --> E["<a href='/classifications/hs/v2017/290121'>290121: Acyclic hydrocarbons; unsaturated, ethylene</a>"]
B --> F["<a href='/classifications/hs/v2017/290122'>290122: Acyclic hydrocarbons; unsaturated, propene (propylene)</a>"]
B --> G["<a href='/classifications/hs/v2017/290124'>290124: Acyclic hydrocarbons; unsaturated, buta-1,3-diene and isoprene</a>"]
B --> H["<a href='/classifications/hs/v2017/290129'>290129: Acyclic hydrocarbons; unsaturated, n.e.c. in heading no. 2901</a>"]

    

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