The world's leading polyethylene production technology

Polyethylene technology the world has a lot of companies with technology, there are seven LDPE, LLDPE, and the whole density of technology companies have 10, HDPE technology, enterprises have 12. From a technical development perspective, the production of high-pressure LDPE PE resin production technology is the most mature way, kettle-style law and tube processing techniques are mature, the coexistence of both production technology. Widely used in developed countries tube manufacturing process. In addition, foreign companies commonly used by low temperature and high activity polymerization catalyst system, can reduce the reaction temperature and pressure.http://www.prmindustry.com/Abstract...Articles section 1: gas-phase polyethylene production processAs the gas-phase polyethylene plant does not use solvents, simple process, low capital investment and energy consumption can be adjusted within a wide range of product variety, the device has considerable flexibility and adaptability to the market, so the gas-phase full-density polyethylene plant developed rapidly become a major polyethylene production technology, but also represents a polyethylene production unit of a developing trend.2:
 High-pressure process for the production of polyethylene

    Eni's high-pressure process chemical

    Using high-pressure autoclave or tubular process to produce LDPE and EVA. LDPE density 918-935kg/m3, EVA in VAM (vinyl acetate monomer) content from 3% -40%. Has 24 production lines in operation or design, in-line capacity up to 20 tons / year. The device is currently relatively high investment costs and energy consumption, the new devices generally do not use this technology.
Stamicarbon's high-pressure process

    High-pressure LDPE tubular reactor production and EVA copolymer. Material consumption per ton of production, energy consumption is: ethylene 1.005t, power 800kwh, high-pressure steam 230kg, cooling water 120m3, low pressure steam (output) 650kg. 1996, has capacity of 150,000 single -30 tons / year plant put into operation sets, with a total capacity of over 1.8 million tons / year

 3: tank reactor and process CXExxon Mobil tube and tank reactor process

    High-pressure free radical process to produce LDPE homopolymers and EVA (ethylene vinyl acetate) copolymer. The use of large-scale tubular reactor (capacity 130,000 -35 tons / year) and stirred tank reactor (capacity about 10 tons / year). Tubular reactor operating pressure up to 300MPa, kettle-type reactor is lower than 200MPa.
Mitsui Chemicals, Inc. CX process low-pressure slurry method

    The process used to produce bimodal molecular weight distribution of HDPE and MDPE. Ethylene, hydrogen, comonomer, and high activity catalyst into the reactor, the slurry state polymerization reaction, the polymer nature of the automatic control system can effectively control the product quality, ultra-high activity catalyst from the product removal without.

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            Peter Huang