Description
Introduction to Butane Gas from Star of the Persian Gulf Refinery and Abadan Oil Refinery
Overview of Butane Gas 🔷
Butane gas is one of the main components of Liquefied Petroleum Gas (LPG) widely used in energy, heating, and petrochemical industries. It consists of light-chain hydrocarbons with the formula C₄H₁₀ and easily liquefies under pressure. Due to its physical and chemical properties—such as suitable vapor pressure, high purity, and clean combustion—butane offers distinct advantages over other light hydrocarbons.
Butane Gas Analysis – Comparison of Two Major Iranian Producers
| Parameter | Star of the Persian Gulf Refinery | Abadan Oil Refinery |
|---|---|---|
| C2 (Ethane) | Max 0% vol | Max 0.2% vol |
| C3 (Propane) | Max 1.53% vol | Max 5% vol |
| C4 (Butane) | Min 97.55% vol | Min 91% vol |
| C5 (Pentane) | Max 0.92% vol | Max 2% vol |
| Hydrogen Sulfide (H₂S) | None | None |
| Mercaptan Sulfur | 0 g/m³ | 0.23 g/m³ |
| Specific Gravity (SP.GR) | 0.5749 | 0.575 |
| Total Sulfur | 3.72% vol | – |
| Vapor Pressure | 325 kPa | – |
Advantages of Butane Gas from Star of the Persian Gulf Refinery ✅
- Very high purity (97.55% butane)
- Free of H₂S and mercaptans – safe, odorless, and non-corrosive
- Uniform density ideal for combustion adjustment in industrial equipment
- Controlled vapor pressure, reliable for storage and transportation processes
- Suitable for export, industrial, and household uses
Difference Between Butane and NPG (Normal Pentane and Lighter Gases)
Key Differences 🔸
Many customers face two options when exporting or supplying industrial feedstock: Butane (C₄H₁₀) or NPG, which is a mixture of normal pentane (C₅H₁₂), C₅ isomers, and lighter gases such as propane and butane. The main differences are summarized as follows:
| Feature | Butane Gas | NPG |
|---|---|---|
| Dominant Composition | Butane (~95–97%) | Normal pentane with some butane, propane, and C₆ |
| Boiling Point | Around 0°C | Higher than butane, between 36–39°C |
| Main Application | Fuel, heating, petrochemical feedstock | Solvent, chemicals, detergent industries |
| Behavior at Low Temps | Rapid gas release and evaporation | Slower evaporation, less suitable for gas systems |
| LPG Substitution | Used directly | Usually not interchangeable due to different behavior |
Recommendation 🔹
Therefore, if your goal is to supply a reliable, clean, and fast-acting fuel for heating or LPG export, butane is a better and more technical choice compared to NPG.
Applications of Butane Gas
1. Household and Urban Fuel (LPG) 🔥
Butane, together with propane, forms the base of household LPG used for cooking, heating, and water heaters in urban and rural areas. Due to stable performance at low pressure and complete combustion, it is cost-effective, safe, and reliable in areas without natural gas access. It is also widely used in household cylinders, gas transport trailers, and urban distribution networks.
2. Petrochemical Feedstock 🏭
Pure butane is an ideal feedstock for steam cracker units that produce ethylene, propylene, and other basic plastics and resin products. It is also used in MTBE (Methyl Tertiary-Butyl Ether) production units, where isobutane is the primary feedstock. Butane from the Star of the Persian Gulf Refinery, due to its high quality and zero sulfur content, is a trusted choice for sensitive petrochemical processes.
3. Automotive Fuel (LPG) 🚗
In dual-fuel or LPG-equipped vehicles, butane plays a key role in reducing expensive fossil fuel consumption and lowering emissions. In developed countries, using butane as a gasoline alternative reduces greenhouse gases and vehicle maintenance costs. Its uniform combustion also extends engine life.
4. Industrial Heating 🔧
In factories requiring continuous heat such as tile and ceramic manufacturing, foundries, metal smelting, and poultry farms, butane is commonly used as fuel in burners and furnaces. Its high heat, fast combustion, and lack of residue or pollution make it ideal for these industrial applications. It is also a reliable fuel for emergency power generation in generators and remote areas.
Final Conclusion
Butane gas from Star of the Persian Gulf and Abadan refineries, with precise analysis, high quality, and stable technical properties, is an ideal option for export, industrial, household, and large-scale fuel supply. Compared to NPG, pure butane performs better in fuel and petrochemical applications.
📞 For daily pricing, purchase terms, official analysis, and export information, please contact us.
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