In order to produce high purity isobutene, isobutene, which is contained in C4 Raffinate-1, is reacted with methanol to make MTBE and decomposed and reacted again to produce isobutene.
It is a colorless gas at ambient temperature and atmospheric pressure.
CAS number : 75-28-5 / Molecular formula : C4H8
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.
Isobutane is utilized as a polymer process dilution and charging gas.
|Product Speciality||Contact person||Phone number||Inquiry|
|ISOBUTENE||Park Sun-chang||82-2-6370-5412||Mail inquiry|
|Test Item||Unit||Test Method||Specification|
|C3’S||Wt - ppm||ASTM D 2163||MIN 10|
|ISOBUTANE||Wt - %||ASTM D 2163||MAX 99.9|
|BUTANES||Wt - ppm||ASTM D 2163||MAX 500|
|BUTENES||Wt - ppm||ASTM D 2163||MAX 500|
|BUTADIENE||Wt - ppm||ASTM D 2163||MAX 200|
|MTBE||Wt - ppm||ASTM D 4815||MAX 5|
|DIMETHYL ETHER||Wt - ppm||ASTM D 4815||MAX 5|
|METHANOL||Wt - ppm||ASTM D 4815||MAX 10|
|T-SULFUR||Wt - ppm||ASTM D 6667||MAX 5|
|WATER||Wt - ppm||ASTM D 1744||MAX 20|
* The above specifications represent standards may differ from the actual subject matter.