Propylene

General Characteristics
Propylene is manufactured by pyrolysis of oil fractions. It is a colourless, non-toxic, extremely combustible, easily inflammable gas.

Propylene is used as a monomer for the production of polymers (polypropylene and its copolymers), intermediate product for the production of chemical substances (oxoalcohols, acrylic acid) and as a technical gas for welding, cutting, etc.

The product is classified as hazardous pursuant to Act No. 350/20011 Coll. and corresponding EU legal regulations (Regulation (EC) No 1272/2008 CLP, Directive No 67/548/EHS or Directive No 1999/45/EC.

Quality

Parameter	Unit	Values	Test Method
Propylene	% vol.	min. 99,8	calculation
Ethylene	ppm vol.	max. 100	gas chromatography
Ethane, propane and nitrogen	ppm vol.	max. 2000	gas chromatography
Acetylene and methyl acetylene	ppm vol.	max. 10	gas chromatography
Dienes	ppm vol.	max. 10	gas chromatography
C₄ hydrocarbons	ppm vol.	max. 20	gas chromatography
Oxygen	ppm vol.	max. 10	electrochemical
Hydrogen	ppm vol.	max. 10	gas chromatography
Carbon dioxide	ppm vol.	max. 10	gas chromatography
Carbon monoxide	ppm vol.	max. 5	gas chromatography
Sulphur (H₂S + mercaptanes)	mg/m³	max. 1	electrochemical
Water at the producer	ppm vol.	max. 15	hygrometer
Water at the customer (railway tank)	ppm vol.	max. 200	acc. to contract

Packaging, Storage, Transportation
Liquid propylene is stored in tightly closed tanks and is transported in railway tanks. Both the railway and storage tanks are made from low-temperature steel, cooled bellow propylene boiling point or pressurized.

14 Dec 2011

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Propylene

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