Liquid pyrolysis products (LPP) are multi-tonnage by-products of hydrocarbon pyrolysis, the main process of modern petrochemistry. Pyrolysis of hydrocarbons produces the main olefins – ethylene and propylene. LPP is a complex mixture of hydrocarbons of different structure and is a valuable and inexpensive raw material for obtaining a large number of substances. Complex processing of LPP significantly improves economic efficiency and profitability of the entire ethylene production. Production method: produced at ethylene plants during pyrolysis of hydrocarbon gases as a by-product. Liquid of light yellow to brown color without mechanical impurities. Packing, transportation and storage: Oil tar is transported in own or rented railway tanks of the shipper (consignee). Application: used as a raw material for production of motor fuels, solvents, as well as for production of aromatic hydrocarbons.
| INDICATOR NAME | CHARACTERISTICS |
|---|
| Grades | E-3 |
| Appearance | Light yellow to brown liquid without mechanical impurities |
| Density at 20 °C, g/cm³, min. | 0.800 |
| Fractional composition: |
| – Boiling point, °C, min. | 35 |
| – Percentage of volume of fraction distilled at temperature up to 185 °C, %, not less | – |
| – End of boiling point, °C, max. | 270 |
| Mass fraction of aromatic hydrocarbons (C6-C8), %, not less | 55 |
| Mass fraction of benzene, %, min. | 23 |
| Mass fraction of water, %, max. | 1.0 |
