Description

Fuel Grade Bioethanol – Gostaresh Fuel Green Zagros Company

Fuel Grade Bioethanol for Fuel Blending, Petrochemical Applications and Renewable Energy Markets

Fuel Grade Bioethanol produced by Gostaresh Fuel Green Zagros is a high-purity renewable fuel alcohol designed for domestic and international industrial markets. Produced through controlled fermentation and advanced distillation processes, this product complies with Iranian National Standard ISIRI 19512 and offers the quality stability required for fuel blending, petrochemical manufacturing, and renewable energy supply chains.

With an ethanol purity of at least 99.6% by volume and tightly controlled levels of water, methanol, sulfur, heavy metals, and organic contaminants, this bioethanol is positioned as an export-grade industrial commodity suitable for demanding international procurement specifications.

Technical Specifications and Quality Analysis

Appearance

The product is clear, colorless, and free from suspended particles.

Visual clarity is one of the first indicators of production quality. Any haze, discoloration, or visible contamination may indicate filtration deficiencies or process instability. The transparent appearance confirms proper purification and handling.

Ethanol Purity

Minimum: 99.6% v/v

Purity is the most important commercial parameter in fuel-grade ethanol. Higher ethanol concentration improves blending efficiency, combustion quality, and energy performance while reducing unwanted contaminants.

Higher Alcohols (C3–C5)

Maximum: 250 ppm (water-free basis)

Excessive higher alcohols can negatively influence combustion efficiency and increase volatile organic compound (VOC) emissions. Maintaining low concentrations improves fuel performance and environmental compliance.

Methanol Content

Maximum: 300 ppm

Methanol is closely monitored in international fuel contracts due to its corrosive characteristics and potential impact on fuel system components. The controlled level enhances storage and transportation reliability.

Water Content

Maximum: 0.4% v/v

Water is one of the most critical parameters in fuel ethanol. Excess moisture can cause phase separation when blended with gasoline, negatively affecting fuel stability during transportation and storage.

Copper

Maximum: 0.1 mg/kg

Copper can accelerate oxidation reactions and reduce fuel shelf life. Low copper levels improve long-term storage stability.

Acidity (as Acetic Acid)

Maximum: 40 mg/L

Acidity directly affects corrosion potential in pipelines, tanks, and fuel handling systems. Tight acidity control supports safe industrial operations.

pH

Range: 5.6 – 9

The acceptable pH range indicates chemical stability and compatibility with blending, storage, and transportation infrastructure.

Sulfur

Maximum: 5 ppm

Low sulfur content is essential for compliance with modern environmental regulations and contributes to reduced sulfur oxide (SOx) emissions.

Sulfates

Maximum: 4 ppm

The low sulfate level demonstrates process purity and limited mineral contamination.

Non-Volatile Matter

Maximum: 3 ppm

This parameter indicates the cleanliness of the distillation process and minimizes residue formation in storage and combustion systems.

Density at 20°C

0.791 g/ml (ASTM D4052)

The measured density is consistent with international fuel-grade ethanol standards and supports accurate blending calculations.

Acetaldehyde

51 mg/L

Acetaldehyde is a natural by-product of fermentation. Controlled concentrations contribute to improved product stability and reduced odor issues.

Electrical Conductivity

Maximum: 5 µS/cm

Low conductivity minimizes electrochemical corrosion risks during storage and transportation.

Heavy Metals

Maximum: 2 ppb

Very low heavy metal concentrations support compliance with strict international fuel specifications and environmental standards.

Phosphorus

Maximum: 0.1 mg/L

Phosphorus contamination can negatively affect catalytic systems used in refining and automotive applications. The low concentration enhances compatibility with downstream processes.

Organic Impurities

Maximum: 10 mg/L

Low organic impurity levels indicate efficient purification and support high-quality fuel performance.

Main Applications of Fuel Grade Bioethanol

Gasoline Blending (E5, E10, E15, E85)

One of the largest applications of fuel-grade bioethanol is blending with gasoline to increase octane number, improve combustion efficiency, and reduce dependence on fossil fuels. Many countries mandate ethanol blending programs to lower greenhouse gas emissions.

Renewable Transportation Fuels

Bioethanol serves as a renewable liquid fuel for passenger vehicles, commercial fleets, and transportation energy programs. It contributes to national energy diversification strategies.

Petrochemical Industry Feedstock

High-purity ethanol can be used as a feedstock for producing ethylene and a variety of downstream petrochemical products, including plastics, solvents, and synthetic chemicals.

Industrial Solvents

Due to its purity and low impurity profile, fuel-grade bioethanol can be utilized in industrial cleaning agents, coatings, and solvent-based formulations.

Sustainable Aviation and Future Fuel Programs

Bioethanol is increasingly considered a strategic renewable feedstock in emerging sustainable aviation fuel (SAF) pathways and low-carbon fuel initiatives.

Export-Oriented Renewable Energy Markets

Countries implementing decarbonization policies continue to expand biofuel consumption. Fuel-grade ethanol remains one of the most actively traded renewable fuel commodities worldwide.

Bioethanol Generations: Technology Overview

First Generation Bioethanol

Produced from sugarcane, corn, grains, and molasses through fermentation and distillation processes. This remains the dominant global commercial model due to proven economics and established infrastructure.

Second Generation Bioethanol

Produced from agricultural residues, bagasse, and lignocellulosic biomass. Although environmentally attractive, production costs remain comparatively high.

Third Generation Bioethanol

Derived from algae-based feedstocks. The technology offers significant long-term potential but remains limited in large-scale commercial deployment.

Fourth Generation Bioethanol

An advanced concept integrating biofuel production with carbon capture technologies. It represents a future pathway toward carbon-neutral fuel systems.

Global Market Position

Fuel Grade Bioethanol from Gostaresh Fuel Green Zagros is positioned as a high-purity renewable fuel product suitable for international fuel blending programs, petrochemical industries, and renewable energy markets.

Its commercial strengths include:

✔ High ethanol purity (99.6%)

✔ Low water content

✔ Controlled methanol concentration

✔ Ultra-low sulfur and heavy metal levels

✔ Export-grade storage and transportation stability

✔ Compliance with industrial fuel quality requirements

Conclusion

Fuel Grade Bioethanol produced by Gostaresh Fuel Green Zagros is an export-oriented renewable fuel alcohol designed to meet the technical requirements of modern fuel, petrochemical, and energy markets. Its combination of high purity, controlled contaminants, and operational stability makes it suitable for gasoline blending, industrial processing, and global renewable fuel supply chains.

Rather than functioning as a marketing-oriented “green product,” it is a technically compliant industrial commodity capable of meeting the quality expectations of international traders, refiners, fuel blenders, and petrochemical manufacturers.