Word Count : 726

---

Biofuels are renewable fuels derived from biological resources such as plant materials, agricultural residues, organic wastes, and microorganisms. Among the commonly used biofuels are methanol, ethanol, butanol, and biogas. These fuels differ in their chemical composition, physical properties, energy content, and applications. A comparative understanding of their properties is important for evaluating their efficiency, storage, transportation, and suitability for various energy applications. The following chart presents a comparison of major properties of methanol, ethanol, butanol, and biogas. Comparative Chart of Biofuel Properties: | Property | Methanol | Ethanol | Butanol | Biogas | | ------------------------------ | ----------------------------------------------------------- | ---------------------------------------------------------- | --------------------------------------------------------- | ------------------------------------------------------------- | | Chemical Formula | CH₃OH | C₂H₅OH | C₄H₉OH | Mainly CH₄ and CO₂ | | Physical State | Liquid | Liquid | Liquid | Gas | | Production Source | Biomass gasification, synthesis gas, fermentation | Fermentation of sugar and starch crops (sugarcane, corn) | Fermentation of biomass using Clostridium bacteria | Anaerobic digestion of organic wastes, manure, and sewage | | Energy Content (MJ/kg approx.) | 20 | 27 | 36 | 20–25 | | _____ _______ _________ ___ ___.
__________ _____ ___ _____ ______ ____ ______ __________ _______.
____ ___ _________ _________ ___ _______ _________ _______ _______ ________ ______ ____.
_____ ___ __________ ________ _______ ___ _______ ____ ________.
_______ ______ ________ ____ __________ ____ __________ _____ ___ ________.
_________ ____ ___ _________ _____ ________ _______ ___ _______ _________ _______.
_________ ___ ________ __________ ___ ______ _____ _______ ____ _____.
_________ _______ _____ __________ ___ _______ _______.
_________ _____ _______ __________ ______ __________.
___ ____ ___ _______ ____ ___ ____ ___.
__________ ___ _______ ______ _____ __________ _________ _________.
____ _______ ___ ________ ___ __________ _____ ______ _______.
________ _______ ______ __________ _________ _______ ________ __________ ___ __________.
_________ ___ ________ _____ ________ ____ __________ _____ _____ ________ _________ ___.
___ ________ ____ ____ _______.
______ ______ ________ ____ ______ _____ ___.
____ __________ ___ _____ _________ ____ ____ _______ _______ _________.
___ __________ ________ _______ ____ __________ ___ _________ ____.
________ _____ _______ _______ _________ _________ ________ ___ __________ _________.
____ ______ _____ ______ ________ _________ ______.
______ ____ _______ __________ _______.
_______ ____ _________ ________ ____ ___ ___ _____ _________ ____ ___ _______.
______ ______ ________ ______ ____ _____ ___.
____ _____ ____ ____ ________ _______ _________ ________ _______.
________ _____ ___ ______ _________ ________ ____ ______ ______ ____ ________.
________ ______ ___ ____ ________ _________ _________ _______ ___ ___.
_________ ________ __________ ________ ____ _________ _______ _____ __________.
_________ __________ _____ ____ ________.
_____ ________ _______ ____ _______ _______ _______ ______ _________ _________ ________ __________.
__________ __________ ______ _________ _________ ______ __________ __________ ____ __________ _____ _______.
________ _______ ______ ______ _____.
___ _________ ___ ____ ________ ______ _________ _____ _________ ___ ____ _____.
_________ _______ _____ _____ ____.
_________ ____ ___ ____ _________ _________ _________ _________ ___ __________ _________ _______.
___ __________ _______ ____ __________ ____ ________ _______ __________ __________ __________ ______.
___ _________ _________ _______ ______ _________ _________ ______.
________ ________ _____ _________ _________ _____ ______ _______ ________ __________ ______ __________.
_______ _____ __________ _______ ___ ______.
_____ _________ ________ ___ ___ __________.
__________ ________ __________ ___ __________ _________.
_______ ___ _________ ______ ____.
__________ _____ ______ _______ ___ ____ ___.
______ _________ _____ ______ ____ _________ _________.
______ __________ ______ ______ _________ ____ ______ __________ _____ ___ _________.
_______ ________ ____ ___ _________ _________ __________ ______ _________ ___ ______ ___.
_________ _________ ___ ________ ___ ___ ______.
___ __________ ________ ______ ___ _______ __________ _______.
__________ _____ __________ _________ ________ ___ _________ _________ __________ _____ ______ _____.
________ ______ __________ _____ ___ _____.
_____ __________ ____ ________ ______ _________ ___.
_____ ________ ___ ____ __________ ___ _____ __________ ___ _________ _________.
_____ _______ _________ _______ _________ ____ ________ ______ ___ _____.
__________ ___ _________ __________ ________ ___ ______ ________ _____.
_____ ___ __________ ___ _______ ___ ___ _____.
___ _____ ____ ________ ___.
___ _____ ____ _____ _____ ________ ___ ___ _________ ___ ____.
_______ ________ __________ _______ ______ ___ ___ _______ ____ __________ __________.
_________ ________ ________ ___ ____ _________ ___ ________.
__________ _________ ______ _____ ______ _________ _________ _________ ___.
______ _________ __________ _____ _____ _______ _______ __________ ____ _____ ___ _______.
______ ____ __________ ______ ___ ___ __________ _________.
_____ ___ _______ _________ ____ __________ _________ _________.
_____ ______ ________.
Get Full Answer on WhatsApp