에틸렌 생산을 위한 스팀 분해

석유화학 산업의 근간

Petrochemical & Refining Global Industrial Scale $180 billion

개요

Steam cracking is the primary industrial process for producing ethylene, the world's most produced organic chemical. Hydrocarbon feedstocks (ethane, naphtha, or gas oil) are diluted with steam and heated to 750-900 degrees C in tubular furnaces for milliseconds, causing thermal decomposition into smaller olefins. Ethylene is the building block for polyethylene, PVC, ethylene oxide, and dozens of other essential chemicals. Global capacity exceeds 220 million tons per year across approximately 300 crackers worldwide.

화학 공정

Hydrocarbon feed is mixed with steam and passed through pyrolysis furnace tubes at 750-900 degrees C with residence time of 0.1-0.5 seconds. The cracked gas is rapidly quenched to freeze the product distribution, then separated by compression and cryogenic distillation into ethylene, propylene, butadiene, and other products.

C₂H₆ → C₂H₄ + H₂ (ethane dehydrogenation)
C₈H₁₈ → C₂H₄ + C₃H₆ + C₄H₈ + CH₄ + H₂ (naphtha cracking, multiple products)

원자재

  • Ethane (C₂H₆) — Natural gas processing (Primary feedstock (US/Middle East))
  • Naphtha (C₅-C₁₂) — Petroleum refining (Primary feedstock (Asia/Europe))
  • Steam (H₂O) — Boiler systems (Diluent to reduce coking)

최종 제품

  • Ethylene (C₂H₄) — Polyethylene, ethylene oxide, vinyl chloride (Polymer-grade >99.95%)
  • Propylene (C₃H₆) — Polypropylene, acrylonitrile, propylene oxide (Co-product)
  • 1,3-Butadiene (C₄H₆) — Synthetic rubber (Co-product from naphtha cracking)
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Environmental Impact

Steam cracking is the single largest CO₂-emitting process in the chemical industry, responsible for approximately 300 million tons of CO₂ annually. Furnace combustion and the endothermic reaction require enormous energy input. NOx emissions from high-temperature combustion are significant.

안전 고려사항

최근 혁신

Electric cracker furnaces powered by renewable energy could reduce CO₂ emissions by 90%.
Oxidative dehydrogenation of ethane and methane-to-olefins via oxidative coupling are being developed as alternative routes.

생산 규모

220000000

톤/년

$180 billion

시장 가치

더 보기: Petrochemical & Refining

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Commercial Production

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Frequently Asked Questions

What industry uses 에틸렌 생산을 위한 스팀 분해?
에틸렌 생산을 위한 스팀 분해 is used in the petrochemical & refining sector at global industrial scale scale.
What process is involved in 에틸렌 생산을 위한 스팀 분해?
Hydrocarbon feed is mixed with steam and passed through pyrolysis furnace tubes at 750-900 degrees C with residence time of 0.1-0.5 seconds. The cracked gas is rapidly quenched to freeze the product distribution, then separated by compression and cryogenic distillation into ethylene, propylene, buta
What is the economic significance of 에틸렌 생산을 위한 스팀 분해?
에틸렌 생산을 위한 스팀 분해 has a market value of $180 billion and annual production of 220,000,000 tons.
What is the environmental impact of 에틸렌 생산을 위한 스팀 분해?
Steam cracking is the single largest CO₂-emitting process in the chemical industry, responsible for approximately 300 million tons of CO₂ annually. Furnace combustion and the endothermic reaction require enormous energy input. NOx emissions from high-temperature combustion are significant.
What raw materials are used in 에틸렌 생산을 위한 스팀 분해?
The main raw materials include: Ethane (C₂H₆), Naphtha (C₅-C₁₂), Steam (H₂O).