Bioethanol

Description

Fuel Grade Bioethanol – Gostaresh Fuel Green Zagros Company
Fuel Grade Bioethanol | Technical Specification & Market Application

The bioethanol produced by Gostaresh Fuel Green Zagros falls under first-generation biofuels. However, its quality goes beyond the typical “standard alternative fuel” level and approaches specifications suitable for gasoline blending (E5 to E85 depending on the destination refinery). In real commercial trading, the critical factor is not environmental messaging, but precise chemical parameters and stability during transport and storage. That is exactly what serious global buyers actually evaluate.

Below is the product analysis based on Iranian National Standard ISIRI 19512

◆ Appearance (clarity and color): Clear and free from suspended particles
This parameter directly reflects distillation quality and absence of physical contamination. Industrial ethanol must be fully transparent; any haze indicates filtration issues or process contamination.

◆ Ethanol purity + C3 to C5 alcohols: minimum 99.6% by volume
This is the primary commercial value driver. In fuel markets, even a 0.2% drop in purity can measurably affect combustion behavior and reduce blending efficiency.

◆ Heavy alcohols (C3–C5, water-free basis): maximum 250 ppm
If elevated, these compounds contribute to incomplete combustion and increased VOC emissions. Tight control is essential for export markets with strict environmental regulations such as Europe.

◆ Methanol: maximum 300 ppm
High methanol content increases corrosion risk in fuel systems. In B2B contracts, this is often one of the most sensitive QC parameters.

◆ Water content: maximum 0.4% by volume
Water is a critical destabilizing factor in ethanol. Even under FCA handling conditions, poor water control can lead to phase separation at the destination storage tank.

◆ Copper: maximum 0.1 mg/kg
Copper acts as an oxidation catalyst and reduces fuel stability and storage life.

◆ Acidity (as acetic acid): maximum 40 mg/L
Higher acidity leads to pipeline corrosion and reduced storage stability.

◆ pH range: 5.6 to 9
This range indicates chemically stable conditions for industrial handling and blending.

◆ Sulfur: maximum 5 ppm
A key environmental compliance parameter, directly linked to SOx emissions during combustion.

◆ Sulfates: maximum 4 ppm
Indicates process purity and absence of mineral contamination.

◆ Non-volatile matter: maximum 3 ppm
Lower values indicate cleaner distillation and minimal residue formation.

◆ Density at 20°C: 0.791 g/ml (ASTM D4052)
This confirms alignment with global fuel-grade ethanol standards.

◆ Acetaldehyde: 51 mg/L
A fermentation by-product; control is necessary to prevent odor issues and instability.

◆ Electrical conductivity: maximum 5 µS/cm
Lower conductivity reduces electrochemical corrosion risk in storage and transport systems.

◆ Heavy metals (Pb, Hg, etc.): maximum 2 ppb
A critical indicator for high-spec international markets.

◆ Phosphorus: maximum 0.1 mg/L
Excess phosphorus negatively impacts catalytic systems in engines and refineries.

◆ Organic impurities: maximum 10 mg/L
Represents total volatile and semi-volatile contamination load.

Industrial positioning of bioethanol (generation analysis)

◆ First generation (grains, sugarcane, molasses)
The dominant commercial model. Ethanol is produced via starch/sugar hydrolysis, fermentation, and distillation. Its main drawback is competition with food supply chains. Despite that, it remains the backbone of the global ethanol fuel market.

◆ Second generation (lignocellulosic feedstocks such as bagasse and agricultural waste)
Technically attractive but economically challenging. Due to lignin complexity, conversion efficiency is lower and CAPEX is high. Still considered a strategic long-term export direction.

◆ Third generation (algae-based ethanol)
Focuses on algae cultivation. Advantages include rapid growth and CO₂ utilization. However, industrial scalability is still weak, and it remains largely in R&D and pilot-scale development.

◆ Fourth generation (CO₂-capture integrated fuels)
A future-oriented concept combining fuel production with carbon capture. It is more of a carbon-neutral technology framework than a fully commercial product.

conclusion

The bioethanol from Gostaresh Fuel Green Zagros meets export-grade specifications and is suitable for fuel blending markets, petrochemical applications, and renewable energy supply chains. Its main strengths are high purity (99.6%) and controlled levels of metallic and organic impurities, which are the parameters that matter in real international procurement decisions.

From a market standpoint, this product falls into the category of:
“Fuel-grade bioethanol with export compliance stability”

Not a marketing-oriented green label product, but a technically compliant industrial commodity aligned with global trading requirements.