Benzol is chiefly made up of ____________________?
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Answer: A. Benzene, toluene & xylene
Explanation
Benzol recovered from the carbonization of coal is primarily a complex liquid hydrocarbon mixture. Aromatic compounds like benzene, toluene, and xylene make up the vast majority of its volume. These valuable chemicals are separated through fractional distillation for various industrial applications. Coal carbonization involves heating coal in the absence of air to produce coke and gases. The volatile byproducts are captured and scrubbed to recover crude benzol liquid mixtures. Aromatics are characterized by stable ring structures providing unique chemical and solvent properties.
Refined aromatic fractions are essential raw materials used in the manufacture of various polymers. They serve as powerful industrial solvents for paints, coatings, and specialized chemical syntheses. Understanding exact composition ensures safety and efficiency during downstream chemical processing operations. Option B mentions tar and creosote which are heavier byproducts separated from benzol fractions. Option C lists ammonia and phenol which are typically recovered from aqueous condensation liquor streams. Option D proposes anthracene and phenol which belong to higher boiling coal tar distillation fractions.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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