Intro to Products
C4LPG
BUTANE is an alkane hydrocarbon and has isomers such as C4LPG and ISOBUTANE.
C4LPG is a colorless gas with no odor, which is used mainly as fuel.
CAS number : 106-97-8 / Molecular formula : C4H10
Plant processes
The isobutane plant produce high-purity isobutane through distillation using the difference in boiling points of C4LPG and isobutane. After high-purity butane(C4LPG with Olefine less than 100 wt ppm) is produced through the second hydrogenation reaction with butane(C4LPG with Olefine less than 4 mol%) converted by the hydrogenation reaction of C4 Raffinate produced from each plant.
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- Hydrogenation Reaction Unit
- This unit mixes the high-purity C4LPG (with Olefine less than 4 mol%), produced in C4 hydrogenation with hydrogen, passes it through the catalytic layer of the 2-tier reactor and lowers Olefine to less than 100 wt ppm, and sends C4LPG at the bottom of the reactor to the stabilization column. The stabilization column is a packing tower, and discharges the off-gas to the top of the column, and the C4LPG at the bottom of the column to the butane separation column.
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- Isobutane Fractionation Unit
- Off gas is emitted from the upper part of the isobutane fractionation tower, and isobutane products are produced by SIDE CUT. From the bottom, C4LPG is produced.
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- Moisture Removal and DME Removal Unit
- The moisture (20wt ppm) contained in the Isobutane product is lowered by the dryer to 1wt ppm, and sent to the DME (Dimethylether) removal tower for removal of DME, and to the Isobutane storage tank.
Product uses
C4LPG is utilized as fuel.
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Butane Gas
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Product inquiry
| Product Speciality | Contact person | Phone number | Inquiry |
|---|---|---|---|
| C4LPG | 이상윤 부장 | 82-2-6050-2485 | Fax.Mail inquiry |
Properties
C4LPG
| Test Item | Unit | Test Method | Specification |
|---|---|---|---|
| VAPOR PRESSURE (at 37.8 /40 ℃) |
PSIG /MPa | ASTM D 1267 | MAX 70 / MAX 0.52 |
| C3' S & LIGHTER | M-% | ASTM D 2163 | RECORD |
| C4S | M-% | ASTM D 2163 | MIN 85 |
| BUTADIENE | M-% | ASTM D 2163 | MAX 0.5 |
| COPPER CORROSION | . | ASTM D 1838 | MAX NO. 1 |
| RESIDUE IN EVAPORATION | mL /100mL | ASTM D 2158 | MAX 0.05 |
| 95% EVAPORATION TEMP | ℃ | ASTM D 1837 | MAX 2.2 |
| T-SULFUR | Wt-ppm | ASTM D 6667 | MAX 200 |
| WATER | . | ASTM D 2713 | PASS |
C4 LPG (OCT)
| Test Item | Unit | Test Method | Specification |
|---|---|---|---|
| C3' S & LIGHTER | M-% | ASTM D 2163 | MIN 2.0 |
| N-BUTANE | M-% | ASTM D 2163 | MIN 68.0 |
| ISO-BUTANE | M-% | ASTM D 2163 | MAX 29.0 |
| C5’S & HEAVIER | M-% | ASTM D 2163 | MAX 3.0 |
| TOTAL OLEFIN | M-% | ASTM D 2163 | MAX 3.5 |
| TBC | Wt-ppm | ASTM D 1157 | MAX 10 |
| NMP | Wt-ppm | BY GC | MAX 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.