Ethylene and Polyethylene Production Production

Ethylene and Polyethylene Production Production

Olefins production plant

Plant capacity:
250 000 tpa on ethylene
117 052 tpa on propylene
101 166 tpa on benzene
Year of start-up – 1986.
Process developer:
Company Linde, Germany.
Process technology description
Feedstock for ethylene production are naphtha, acyclic hydrocarbons, LPG, butane cut and recycle cuts С2, С3, С4, С5.
Polyolefin production plant comprises of :
 cracked gas pyrolysis, compression and separation department;
 hydrocarbons production department;
 hydrocarbons loading department.
In October, 2005 a plant for С4/С5-cut hydrogenation with a capacity of 90 640 tpa was started-up, process developer is company Linde (Germany) under technology of AXENS (France). Investment volume amounted to
15 Mio. USD.
Principal products: ethylene, propylene, benzene. By-products: С4-cut, С5-cut, С9-cut, heavy pyrolysis resin.

Polyethylene production plant

Plant capacity:
100 000 tpa of polyethylene
Year of start-up – 1997.
Process developer:
Company Union Carbide Corporation, USA
Design: Company Linde, Germany.

Process technology description
Polyethylene production is based on gas-phase technology by license of company Union Carbide (USA). Polyethylene by gas-phase technology is obtained from ethylene and co-polymers in fluidized bed reactor using catalysts at low pressure. Ethylene from olefins plant is the main feedstock, hexane and butene are used as co-polymers.
Using of co-polymers and catalysts enables to produce polyethylene grades with different properties and wide range of application.
Production process comprises of the following units:
 feedstock preparation and treatment;
 ethylene polymerization;
 polyethylene degassing;
 waste gas regeneration;
 polyethylene pelletizing;
 finished products warehousing and shipping.
Principal products: low-pressure polyethylene.