Sepahan Bioproduct Co. company

Address : Unit 102, No.171, 22Bahman St., Isfahan, Iran

Phone and Fax No.: 0098 31 32658380 and 0098 31  32658318

Website: http://www.zist-fs.ir

Email: zistco@yahoo.com, info@zist-fs.ir

Ability : biofuels, bioethanol

Due to the limited fossil resources, the use of biofuels is inevitable. Among biofuels, bioethanol has been increasingly used as an alternative to gasoline in the European countries, America, Brazil, India, China, etc. Ethanol can be produced from agricultural waste such as molasses. With the ability to increase gasoline octane number (an MTBE alternative), bioethanol is mixed with gasoline or used alone.

Sepahan Bioproduct company is a knowledge-based company established in the Isfahan Science and Technology Park.  Technical development of bioethanol production from agricultural waste (such as molasses, dates, etc.), and the commercialization of this process was successfully completed in Sepahan Bioproduct Co. In the exclusive bioethanol production process conducted by Sepahan Bioproduct Co., important steps have been taken to ensure efficient use of raw materials, water, and energy. Moreover, environmentally-friendly features such as treatment and reuse of wastewater have been into careful consideration.

The production process involves the preparation of sugar syrup, fermentation, distillation, and wastewater (vinasse or stillage) condensation:

The unique and innovative features of the commercialized bioethanol production process of Sepahan Bioproduct Co. include:

1. The use of PSA technology for dehydration of ethanol to produce absolute ethanol fuel.
2. The use of wastewater evaporator technology to address environmental problems by re-using the water condensate in the process to minimized water consumption.
3. Less than 3 L water consumption per each L ethanol produced (conventionally water consumption is between 10 to 15 L per L of ethanol)
4. Efficient use of energy in concentration and distillation units using pinch technology.
5. Per capita consumption of steam in the distillation unit is 3 kg and in evaporation unit is 5 kg of steam per L of ethanol produced.
6. Presence of a carbon dioxide recovery unit for food and industrial uses.
7. The use of air cooling condensers instead of water cooling condensers to reduce water consumption.
8. Biological treatment of wastewater followed by final treatment using membrane technology and the treated water is reused in the cooling towers and boilers as well as in the fermentation units.