Propylene R1270

product-124-99

Here's the translation of the introduction about propylene:

🔬 Basic Properties: What Is It?

Propylene is a colorless gas with a faintly sweet or hydrocarbon-like odor at normal temperature and pressure.

Chemical Information: Molecular formula C₃H₆, molecular weight 42.08, CAS No. 115-07-1.

Physical Properties: Extremely low boiling point of approximately -47.4°C to -48°C; slightly soluble in water, but readily soluble in organic solvents such as ethanol and ether.

Hazard Characteristics: It is classified as a Class 2.1 flammable gas. When mixed with air at concentrations between 2% and 11%, it is highly explosive upon exposure to open flame or high temperatures. During storage and transportation, it must be liquefied under pressure or refrigeration and sealed in specialized pressure vessels (such as cylinders and tank cars).

🏭 Production and Market Landscape

Global propylene production capacity has grown rapidly in recent years, reaching approximately 180 million tons per year in 2024. China is the absolute driver of this growth, with its share of global capacity rising to 39%.

There are four primary production processes for propylene, each with different feedstocks and characteristics:

Production Process	Feedstock	Characteristics
Steam Cracking	Naphtha, ethane	By-product of ethylene production; stable product quality
Catalytic Cracking (FCC)	Heavy fractions of crude oil	By-product of oil refining; large volume but lower purity
Propane Dehydrogenation (PDH)	Propane	High product purity, but highly sensitive to propane feedstock prices
Coal/Methanol to Olefins (CTO/MTO)	Coal, methanol	Reduces dependence on oil, but high energy consumption and complex process

On the consumption side, China is also the world's largest consumer of propylene, with apparent consumption reaching 55.36 million tons in 2024. Consumption and production are heavily concentrated in the East China region.

🧩 Industrial Chain and Major Applications: What Is It Used For?

Propylene is a central hub in the petrochemical value chain, with approximately 68% of its downstream consumption dedicated to the production of polypropylene (PP) . It is also a key raw material for several other important chemicals:

Polypropylene (PP): This is the largest end-use for propylene, accounting for 67% to 71% of total consumption. PP has an exceptionally wide range of applications, including:

Packaging materials: Woven bags, BOPP films, food containers.

Automotive and appliances: Bumpers, dashboards, appliance housings.

Textiles and daily necessities: Non-woven fabrics (raw materials for masks and diapers), ropes, toys, plastic boxes.

Propylene Oxide (PO): Accounts for approximately 6% to 8% of consumption; a key raw material for polyurethane foams, insulation materials, and elastomers.

Acrylonitrile: Used in the production of ABS resins and acrylic fibers (synthetic wool).

Other chemicals: Also used to produce isopropanol, acetone, acrylic acid (coatings, adhesives), butanol and octanol (plasticizers), among other important chemical products.

⚠️ Safety Information

Propylene is considered a low-toxicity substance, primarily entering the human body through the respiratory tract. At high concentrations, it has a narcotic effect and may cause loss of consciousness. It is also considered hazardous to the environment, as leaks can contaminate water sources, soil, and the atmosphere. Strict adherence to safety protocols-including fire prevention, static electricity control, and adequate ventilation-is essential during handling and emergency response.

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