Intro to Products
BUTADIENE
Butadiene is produced by the extraction of 1,3-butadiene from Mixed C4 produced together with ethylene and propylene during naphtha cracking in the ethylene plant (NCC). It is a gas with a distinct odor extracted at the ambient temperature and atmospheric pressure.
CAS number : 106-99-0 / Molecular formula : C4H6
Plant processes
This plant uses mixed C4, produced in the ethylene plant, as feedstock and DMF(Dimethyl Formamide), the extractant, to fractionate and produce 1,3-Butadiene according to the extractive distillation method.
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- First Extractive Distillation Unit
- This unit fractionates acetylenes, that dissolve well in DMF (Dimethyl Formamide), an extractant, among mixed C4 , butane that does not dissolve in BD, and C4 Raffinate-1 containing butene.
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- Second Extractive Distillation Unit
- This unit uses the extractant (DMF) to fractionate crude BD and acetylene from the BD and acetylenes fractionated along with solvents in the first extractive distillation unit.
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- BD Fractionation Unit
- This unit produces high-purity 1,3-butadiene in the two continuous separation columns using the differences in boiling points. Light acetylene is recovered as Off Gas and used as fuel, while heavy butene-2 and acetylene are fractionated as C4 Raffinate-2.
Product uses
Utilized as the raw material of Synthetic Rubber(SBR, NBR, etc.) & resin.
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Tires
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Product inquiry
| Product Speciality | Contact person | Phone number | Inquiry |
|---|---|---|---|
| BUTADIENE | Cho Taehee | 82-2-6370-5415 | Mail inquiry |
Properties
1,3-BUTADIENE
| Test Item | Unit | Test Method | Specification |
|---|---|---|---|
| 1,3-BUTADIENE | Wt-% | ASTM D 2593 | MIN 99.5 |
| 1,2-BUTADIENE | Wt-ppm | ASTM D 2593 | MAX 50 |
| T-ACETYLENE | Wt-ppm | ASTM D 2593 | MAX 60 |
| PROPADIENE | Wt-ppm | ASTM D 2593 | MAX 50 |
| C5'S | Wt-ppm | ASTM D 2593 | MAX 20 |
| CARBONYLS (as ACETALALDEHYDE) |
Wt-ppm | ASTM D 4423 | MAX 30 |
| SULFUR (as H2S) | Wt-ppm | ASTM D 6667 | MAX 10 |
| PEROXIDE (as H2O2) | Wt-ppm | ASTM D 5799 | MAX 10 |
| DIMER | Wt-% | ASTM D 2426 | MAX 0.1 |
| NON VOLATILE MATTER | Wt-% | ASTM D 1025 | MAX 0.1 |
| SOLVENT (as DMF) | Wt-ppm | BY GC | RECORD |
| INHIBITOR (as TBC) | Wt-ppm | ASTM D 1157 | AS REQUIRED |
| WATER | Wt-ppm | ASTM D 1744 | MAX 100 |
* The above specifications represent standards may differ from the actual subject matter.