Benzene: Overview
The ring behind polystyrene, nylon and polyurethane foam
What this tab covers What the chemical is, how big its market is, what it is used for (with shares, volumes, why it wins and what could replace it), and its chain from raw material to end user. Ends with three things to remember.Benzene is a six-carbon ring liquid extracted from refinery reformate, cracker pyrolysis gasoline and coke-oven light oil, or made by converting toluene. World demand is about 55 Mt a year (indicative). China alone had 27.7 Mt of capacity at end-2025 and still imported about 5.6 Mt. Half of all benzene becomes styrene; most of the rest becomes phenol, nylon and polyurethane precursors. It is a proven human carcinogen, so handling rules are tight. Its price tracks naphtha and crude, which made it one of the first chemicals hit by the 2026 Hormuz disruption.
Volume about 55 Mt a year of demand (2024, indicative, basis: industry estimates commonly cited by S&P Global and ICIS) Market value about $50 billion (2024, indicative, basis: 55 Mt x about $900/t average Asian price) Growth about 2-3% a year to 2030 (indicative, basis: styrene, phenol and MDI demand growth) Mysteel, Jan 2026 (China capacity); OPIS, Mar 2026 (China imports); value and volume indicativeKey uses
| Use | Share | Annual volume | Why this commodity | Alternatives |
|---|---|---|---|---|
| Ethylbenzene for styrene | 50% | about 27.5 Mtbasis | Benzene alkylated with ethylene gives ethylbenzene, which is dehydrogenated to styrene for polystyrene, ABS and synthetic rubber. No commercial route to styrene avoids benzene, so this demand moves with packaging, appliances and tyres. indicative share, industry estimates (S&P Global, ICIS) | mechanical and chemical recycling of polystyrene substituting polystyrene with paper or PP in packaging |
| Cumene for phenol and acetone | 20% | about 11 Mtbasis | Benzene plus propylene gives cumene, which is oxidised to phenol and acetone. Phenol then goes to bisphenol A, phenolic resins and caprolactam. The cumene route supplies almost all of the world's phenol. indicative share, industry estimates | lignin-derived phenols (pilot scale) direct oxidation of benzene (niche) |
| Cyclohexane for nylon 6 and nylon 66 | 12% | about 6.6 Mtbasis | Hydrogenated benzene gives cyclohexane, oxidised to cyclohexanone and cyclohexanol, the precursors of caprolactam and adipic acid. Benzene's ring is exactly the six-carbon backbone these molecules need. indicative share, industry estimates | bio-based adipic acid (pilot) butadiene route to adiponitrile for nylon 66 |
| Nitrobenzene for aniline and MDI | 8% | about 4.4 Mtbasis | Nitration then hydrogenation gives aniline, which is condensed with formaldehyde and phosgenated to MDI for rigid polyurethane foam insulation. Growth follows construction and cold-chain insulation. indicative share, industry estimates | bio-aniline (Covestro pilot) mineral wool insulation instead of PU foam |
| Linear alkylbenzene (detergents) | 3% | about 1.7 Mtbasis | Benzene alkylated with C10-C13 linear olefins gives LAB, sulphonated to LAS, the workhorse detergent surfactant. India is a large LAB producer and consumer. indicative share, industry estimates | alcohol ethoxylates and sulphates from palm kernel or coconut oil |
| Other (maleic anhydride, chlorobenzenes, solvents, alkyl benzenes) | 7% | about 3.9 Mtbasis | Smaller chemical uses. Solvent use has largely ended because of toxicity, and maleic anhydride has mostly moved to n-butane feed. indicative share, industry estimates | n-butane for maleic anhydride |
From raw material to user
- Crude oil, naphtha or coal Most benzene starts as heavy naphtha from crude refining or light naphtha fed to steam crackers. China also recovers benzene from coke-oven light oil from steelmaking coke.
- Reforming or cracking Catalytic reformers turn naphtha into an aromatics-rich reformate; crackers yield pyrolysis gasoline. Both contain benzene mixed with toluene and xylenes.
- Extraction Solvent extraction (typically sulfolane) and distillation separate benzene at 99.9% purity or better.
- Toluene conversion Surplus toluene is converted to benzene and xylenes by disproportionation, transalkylation or hydrodealkylation, so refiners can swing output toward whichever is dearer.
- Derivatives About half goes to ethylbenzene and styrene, a fifth to cumene and phenol, and about an eighth to cyclohexane for nylon (indicative).
Made from (commodity table)
Oil Crude oilKc Coking coalThree things to know
- China is the hub: 27.7 Mt of capacity at end-2025 (Mysteel), about 40% of the world (indicative), yet it still imported about 5.6 Mt in 2025 (derived from OPIS).
- Benzene margins are thin: producers need a benzene-naphtha spread of about $150-180/t, and it fell to minus $88/t on 20 March 2026 (OPIS).
- Its footprint is about 1.9 t CO2e per t at the factory gate (Plastics Europe, Europe) and a further 3.4 t CO2 per t if the carbon is eventually burnt.