دات نت نیوک
OLEFINS
OLEFINS
OLEFINS
OLEFINS
ETHYLENE

DESCRIPTION

Ethylene is a non-toxic, non-corrosive, colorless gas with very little odor. It burns readily in the presence of oxygen with a luminous flame.

 

APPLICATIONS

Ethylene is the premier building block of the petrochemicals industry. It is used in the production of polyethylene, ethylene dichloride, ethanol, styrene, glycols and many other products.

 

STORAGE AND HANDLING

Ethylene is usually stored as liquid at very low temperatures (around -103°C). Cryogenic tanks are commonly employed. Pipelines are frequently used to transfer ethylene. Very little ethylene is transferred by truck.


PROPYLENE

DESCRIPTION

Propylene is a non-toxic, non-corrosive, colorless gas with very little odor. It burns readily in the presence of oxygen with a luminous flame.

 

APPLICATIONS

Propylene, an important feedstock for the petrochemicals industry, is used in the production of polypropylene, acrylonitrile, propylene glycols, cumene, butyraldehydes, acrolein and other products.

 

STORAGE AND HANDLING

Propylene is stored as a refrigerated liquid at -47°C and transported by refrigerated vessels. Tanks and pipes should be made of stainless steel or nickel alloys with suitable insulation. It can be transported by tank trucks in the same manner as LPG.


BUTADIENE

DESCRIPTION

Butadiene (1, 3-Butadiene) is a flammable, colorless gas with a mild aromatic odor and it is highly reactive. Butadiene is soluble in alcohol and ether, insoluble in water and polymerizes readily, particularly if oxygen is present.

 

APPLICATIONS

One major use of butadiene has been in the making of synthetic rubber (styrene-butadiene and nitrile butadiene rubbers, to a large extent, CIS-polybutadiene is also an extender and substitute for rubber, and polymerizations transpolybutadiene is a type of rubber with unusual properties). Butadiene is also used extensively for various polymerizations for plastics manufacturing. Copolymers with high proportions of styrene have found applications such as stiffening resins for rubber, in water-base and other paints, and in high impact plastic. Butadiene also serves as a starting material for nylon 66 (adiponitrile) and an ingredient in rocket fuel (butadiene- acrylonitrile polymer).

 

STORAGE AND HANDLING

Contact with oxidizing agent may cause ignition. Steel is recommended for tanks and piping in butadiene service, and it is usually stored under pressure or in insulated tanks at reduced temperature, preferably below 1.6°C (35°F). Goggles, rubber gloves and protective clothing should be worn, and self-contained breathing apparatus should be used.


BUTENE-1

DESCRIPTION

Butene-1 (1-Butene) is a non-toxic, non-corrosive, colorless gas and liquid with a slight olefinic odor, asphyxiant gas, highly flammable.

 

APPLICATIONS

Butene-1 can be produced directly from ethylene as CP 99% and also by extraction from C4's mixtures out of ethylene crackers. It is used as a copolymer in polyethylene alkylate gasoline, polybutenes, butadiene; as intermediates for C4 and C5 aldehydes, alcohols and other derivatives; and in the production of maleic unhydride by catalytic oxidation.

 

STORAGE AND HANDLING

Butene-1 is usually stored as liquid at 5-35°C under pressure 0.5-3.5 Bar. A sphere tanks are commonly employed. Pipelines are frequently used to transfer butene-1. Butene-1 is also transferred by truck.