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.

  • 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.
  • 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.
  • 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.

  • Gasoline additive
Product inquiry
Product inquiry List
Product Speciality Contact person Phone number Inquiry
MTBE Park Sun-chang 82-2-6370-5412 Mail inquiry
Properties
MTBE
Specifications List
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.