Liquefied Butylene Gas
Liquefied butylene (butene) is a liquefied C4 olefin gas used in the production of synthetic rubbers and plastics. It is categorized under HTS 2711.19.00.20 for other liquefied petroleum gases and gaseous hydrocarbons. This subheading covers unsaturated gases like butylene not fitting butane or natural gas definitions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If saturated butane content predominates
Butanes (n-butane/isobutane) have dedicated classification based on saturation levels.
If ethylene content requires acyclic hydrocarbon heading
Purer olefins shift to Chapter 29 when used primarily as chemical building blocks.
If motor fuel preparation with light oils
Blends meeting light oil distillation (90% at 210°C) fall under petroleum oils.
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Import Tips & Compliance
• Provide distillation and calorific value tests to distinguish from butanes under 2711.13
• Use UN-approved pressure vessels; declare pressure and temperature conditions accurately
• Monitor for seasonal demand fluctuations affecting bonding and storage requirements
Related Products under HTS 2711.19.00.20
Liquefied Propane Gas (LPG)
Liquefied propane gas is a flammable hydrocarbon gas stored under pressure in liquid form, primarily used for heating, cooking, and as a vehicle fuel. It falls under HTS 2711.19.00.20 as 'other' liquefied petroleum gases excluding natural gas and butane. This classification applies to propane with purity levels suitable for commercial and industrial applications.
Liquefied Propylene Gas
Liquefied propylene is an unsaturated hydrocarbon gas liquefied under pressure, used as a petrochemical feedstock for producing plastics like polypropylene. Classified under HTS 2711.19.00.20 as 'other' liquefied gaseous hydrocarbons not specified elsewhere. It meets the criteria for petroleum gases in liquid form excluding natural gas and butane.
Liquefied Ethylene Gas
Liquefied ethylene is a key petrochemical gas liquefied for transport, essential for polyethylene production. HTS 2711.19.00.20 covers it as other liquefied gaseous hydrocarbons excluding natural gas. Polymer-grade ethylene meets the petroleum gas definition in this chapter.
Liquefied Isobutane-Propane Mix
A liquefied mixture of isobutane and propane used as aerosol propellant and refrigerant. Falls under HTS 2711.19.00.20 as other liquefied petroleum gases not qualifying as pure butane or natural gas. Composition exceeds 50% non-butane hydrocarbons per chapter notes.
Liquefied Petroleum Gas (Autogas)
LPG autogas is a liquefied propane-butane blend formulated for automotive fuel use. Classified under HTS 2711.19.00.20 for other liquefied petroleum gases. Excludes natural gas and pure butane per subheading specifications.
Refrigerant R-290 (Propane)
R-290 refrigerant grade propane is high-purity liquefied propane for use in air conditioning systems. Falls under HTS 2711.19.00.20 as other liquefied petroleum gases. Purity exceeds 99.5% AHRI standards for refrigerant applications.