Intro to Products
MTBE
After extracting butadiene from mixed C4, MTBE is prepared by esterifying isobutene with methanol in the remaining mixture(C4 Raffinate-1). It is a colorless liquid with odor at ambient temperature and atmospheric pressure. It is used as a gasoline additive and isobutene raw material.
CAS number : 1634-04-4 / Molecular formula : C5H12O
Plant processes
This unit consists of the reaction unit that selectively lets the Isobutene, contained in C4 Raffinate-1, react with methanol using a catalyst (etherification) to produce MTBE, and the refining unit that fractionates unresponsive C4 Raffinate-1 and high-purity MTBE.
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- MTBE Synthesis Unit
- This unit consists of the reaction process that selectively lets the isobutene, contained in C4 Raffinate-1, react with methanol using a catalyst (etherification) to produce MTBE, and the refining unit that fractionates unresponsive C4 Raffinate-1 and high-purity MTBE.
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- Isobutene Manufacturing Unit
- This unit fractionates methanol by cracking the MTBE, produced by catalyst process of the MTBE synthesis unit, and recovers high-purity isobutene.
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- Butene-1 Recovery Unit
- Among the residual C4 Raffinate-2, produced by the MTBE synthesis unit, this unit selectively hydrogenates BD, VA, PD and EA, fractionating high-purity butene-1 in the refining system.
Product uses
Used for gasoline additive or high-purity isobutene production.
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Gasoline additive
Product inquiry
| Product Speciality | Contact person | Phone number | Inquiry |
|---|---|---|---|
| MTBE | Park Sun-chang | 82-2-6370-5412 | Mail inquiry |
Properties
MTBE
| Test Item | Unit | Test Method | Specification |
|---|---|---|---|
| MTBE | Wt-% | ASTM D 5441 | MIN 98 |
| DIISOBUTYLENE | Wt-% | ASTM D 5441 | MAX 1 |
| TERTIARY BUTYL ALCOHOL | Wt-% | ASTM D 5441 | MAX 1 |
| C4’S & OTHERS | Wt-% | ASTM D 5441 | MAX 1 |
| METHANOL | Wt-% | ASTM D 5441 | MAX 0.3 |
| WATER | Wt-ppm | ASTM D 1364 | MAX 500 |
* The above specifications represent standards may differ from the actual subject matter.