What are the six basic petrochemicals?
News 2025-04-07
1. Ethylene (C₂H₄)
- Primary Use: The most important petrochemical, used to make:
- Plastics: Polyethylene (PE) for packaging, bottles.
- Chemicals: Ethylene oxide (antifreeze), PVC, polystyrene.
- Production: Steam cracking of naphtha or ethane.
2. Propylene (C₃H₆)
- Primary Use: Key for:
- Plastics: Polypropylene (PP) for textiles, automotive parts.
- Chemicals: Acrylonitrile (synthetic fibers), propylene oxide (foams).
- Production: Byproduct of ethylene cracking or fluid catalytic cracking (FCC).
3. Butadiene (C₄H₆)
- Primary Use: Essential for:
- Synthetic Rubber: Styrene-butadiene rubber (SBR) for tires.
- Plastics: ABS (used in electronics, automotive parts).
- Production: Extracted from C₄ streams in refineries.
4. Benzene (C₆H₆)
- Primary Use: Aromatic hydrocarbon used in:
- Plastics: Polystyrene, nylon.
- Chemicals: Detergents, dyes, pharmaceuticals.
- Production: Catalytic reforming of naphtha.
5. Toluene (C₇H₈)
- Primary Use: Important for:
- Solvents: Paints, adhesives.
- Chemicals: TNT (explosives), benzene production.
- Production: Refined from crude oil or catalytic reforming.
6. Xylene (C₈H₁₀, mixed isomers)
- Primary Use: Key in:
- Plastics: PET (polyethylene terephthalate) for bottles.
- Chemicals: PTA (purified terephthalic acid) for polyester fibers.
- Production: Catalytic reforming and distillation.


