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ETHYLENE PROPYLENE PROPANE MIXED-C4 HYDROGEN PYROLYSIS GASOLINE

MIXED C4

Mixed C4 Raffinate is produced through the cracking of hydrocarbons(naphtha, ethane, LPG, Gasoil, etc.) such as petroleum or natural gas, and then the fractionation and purification with the difference in boiling points of ethylene, propylene and propane. It is a mixture of hydrocarbons containing 4 carbon atoms and a colorless gas at the ambient temperature and pressure.

CAS number : - / Molecular formula : Mixture

Properties / Specifications Download MSDS Download
Plant processes

This plant cracking naphtha with steam into the light hydrocarbon compound at a high temperature in excess of 800℃, and quenches, compresses and fractionate it to produce ethylene, propylene, mixed C4, pyrolysis gasoline (PG), etc.

  • Cracking Heater Unit
    This unit cracking naphtha with steam in a cracking furnace into the hydrocarbon compound with less carbon at a high temperature in excess of 800℃, produces high-pressure steam with the heat of the high-temperature cracked gas and sends it to the quenching unit.
  • Quenching Unit
    This unit cools down the high-temperature cracked gas from the cracking furnace with quench oil, fractionates heavy fuel oil (PFO, PGO), and cools it down with quench water. the quenched substance is sent to the compression unit.
  • Compression Unit
    To economically fractionate and refine the quenched cracked gas, this unit uses the compressor to raise the pressure to about 38 kg/㎠G.
  • Fractionation Unit
    This unit cools down the gas compressed by high pressure at a super-low temperature (-165℃), and uses the differences in boiling points to fractionate hydrogen, ethylene , propylene , propane, mixed C4 and pyrolysis gasoline (PG), etc.
Product uses

Utilized as the raw material for 1,3-butadiene plant.

  • BD Plant
Product inquiry
Product inquiry List
Product Speciality Contact person Phone number Inquiry
MIXED C4 Cho Taehee 82-2-6370-5415 Mail inquiry
Properties
MIXED C4 (Ⅰ)
Specifications List
Test Item Unit Test Method Specification
C3'S & LIGHTER M - % ASTM D 2163 MAX 0.1
1.3-BUTADIENE M - % ASTM D 2163 MIN 38.0
C5'S & HEAVIER M - % ASTM D 2163 MAX 0.2
T-ACETYLENES M - % ASTM D 2163 MAX 1.0
POLYMER INHIBITOR Wt - ppm ASTM D 1157
or BY GC 		MIN 5
T-SULFUR Wt - ppm ASTM D 6667 MAX 10
WATER - VISUAL NO FREE WATER
MIXED C4(Ⅱ)
Properties List
Test Item Unit Test Method Specification
C3'S & LIGHTER M - % ASTM D 2163 MAX 0.3
1.3-BUTADIENE M - % ASTM D 2163 MIN 40.0
C5'S & HEAVIER M - % ASTM D 2163 MAX 0.3
VINYL ACETYLENE M - % ASTM D 2163 MAX 1.8
ETHYL ACETYLENE M - % ASTM D 2163 MAX 0.3
POLYMER INHIBITOR Wt - ppm ASTM D 1157
or BY GC 		MIN 10
T-SULFUR Wt - ppm ASTM D 6667 MAX 10
WATER - VISUAL NO FREE WATER

* The above specifications represent standards may differ from the actual subject matter.