Intro to Products

NA-RAFFINATE

NA RAFFINATE is a non-aromatic mixture(NA-Raffinate) remaining after extracting aromatic compounds(BTX) in mixed C6~C8(HEART CUT) in the extraction process of the Aromatic plant. It is an odorous liquid. 

CAS number : - / Molecular formula : Mixture

Plant processes

This plant uses pyrolysis gasoline (PG) as feedstock, and sulfolane, the hydrogenated and extractant, to selectively fractionate aromatic raffinate, and then high-purity benzene, toluene and xylene.

  • Gasoline Hydrogenation Unit
    To produce high-purity products, this unit hydrogenates the double-bond compounds in the high-purity feedstock to make saturated compounds, and removes sulfur compounds and turn them into feedstock suitable for the extraction unit.
    It sends the hydrogenated HEART CUT mixed C6~C8 to the extraction unit, and Raw-C5 is used as feedstock for the C5 plant, whereas C9+ is used as feedstock for the hydrodealkylation unit (HDA).
  • Extraction Unit
    This unit selectively extracts aromatic compounds, among the C6~C8 mixture(HEART CUT), that dissolve well in sulfolane, an extractant. The extracted aromatic compounds are sent to the fractionation unit.
  • Fractionation Unit
    This unit uses the difference in boiling points of aromatic mixture coming from the extraction unit and hydrodealkylation unit to produce high-purity benzene, toluene and xylene.
  • Hydrodealkylation Unit
    This unit turns the C9+ mixture fractionated in the hydrogenation unit into aromatic mixture containing lots of benzene through hydrocracking and hydrodealkylation. This aromatic mixture containing a lot of benzene is sent to the fractionation unit.
Product uses

Utilized as the raw material for cyclohexane, n-hexane and solvent, etc.

  • Aromatic Plant
Product inquiry
Product inquiry List
Product Speciality Contact person Phone number Inquiry
NA-RAFFINATE Lee Yoon-seok 82-2-6370-5422 Mail inquiry
Properties
NON AROMATIC RAFFINATE
Specifications List
Test Item Unit Test Method Specification
Sp. Gr.(60/60℉) - ASTM D 287 MIN 0.7
BENZENE Wt - ppm ASTM D 7504 MAX 600
I.B.P
50% DISTILLATION TEMP.
E.P
ASTM D 850 MIN 30
MAX 120
MAX 170
BROMINE NUMBER - ASTM D 1159 MAX 1.5
NON VOLATILE MATTER mg/100mL ASTM D 1353 MAX 50
T-SULFUR Wt - ppm ASTM D 7183 MAX 20
COPPER CORROSION(50'C.3HR) - ASTM D 130 MAX 1
ANILINE POINT ASTM D 611 MAX 40

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