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Prarancangan Pabrik Dimetil Eter Menggunakan Proses Indirect Syhthesis Dengan Desain Alat Menara Distilasi (T-301)
Dimethyl Ether (DME) is the simplest ether compound in the form of a colorless
gas. Dimethyl ether has similar properties to Liquefied Petroleum Gas (LPG) so it
can be used as a new energy source. The main raw materials for the manufacture
of dimethyl ether are methanol and catalyst support material Alumina (Al2O3).
The process used in the dimethyl ether plant is an indirect synthesis process
because it produces high yield and selectivity. This plant is planned to operate for
330 days per year and work 24 hours/day with a production capacity of 60,000
tons/year. The dimethyl ether plant is planned to be built in the city of Bontang,
East Kalimantan because it is located close to the main raw material source of
methanol, which comes from PT. East Kalimantan Methanol Industry. Form this
company is a Limited Liability Company (PT) with a line and staff organizational
system. Employees working in this factory consist of shift employees and non-shift
employees. The Distillation Tower (T-301) fuses as the end product dimethyl
ether.. The Distillation Tower (T-301) has a height of 10,385 m and a diameter of
1,71 m and is operated at a temperature top of 323,15 K and a bottom of 437,31 K
and a pressure top of 214,17 psi and a bottom of 217,69 psi. Economic analysis
shows that the dimethyl ether plant is feasible to establish. With a Break Even
Point (BEP) value of 46%, Internal Rate of Return (IRR) of 22.724% and Pay
Back Period (PBP) of 2.83 years.
Keywords: Dimethyl ether, Indirect synthesis, Methanol, Reactor
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