PT Indonesia Ethanol Industry · ENA upgrade

50,000 + 30,000 t/y · Indonesia

Corn-based ENA and medicinal anhydrous alcohol upgrade scope.

CNE project photography

CNE / Related reference entries

Reference	Customer / contracting entity	Project scope · English source title
050	PT Indonesia Ethanol IndustryIndonesia	Distillation Equipment for Producing 50,000 Tons/Year of Edible Superfine-grade Alcohol & Dehydration Equipment for Producing 30,000 Tons/Year of Absolute AlcoholFood-grade alcohol · Anhydrous ethanol · Cassava
195	PT. Indonesia Ethanol IndustryIndonesia	Technological Upgrading Project of 50,000 Tons/Year ENA and 30,000 Tons/Year Medical Anhydrous EthanolAnhydrous ethanol · Plant upgrade · Corn

Project figures describe the recorded scope and capacity basis. Photos show the identified customer’s project archive and may represent different phases.

01 / CNE

Project overview

The Indonesia project moved from a cassava-based production history toward corn-based ENA and medical anhydrous ethanol. That change affects cleaning, milling, mash viscosity, enzyme duty, fermentation and the co-product route. The new fuel distillation/dehydration line was designed for switchable production with the existing line.

We first classify equipment for retention, repair or replacement. Inspection, materials, corrosion allowance, internals and available utility capacity determine what can be reused. Next, the engineering package fixes tie-ins, foundations, piping, controls and shutdown work.

Finally, define commissioning by system and product campaign. Keep host-plant capacity, individual package duty and alternative production modes separate. This makes the investment scope and the acceptance test understandable to both the plant team and the suppliers.

02 / CNE

Engineering scope

Start with saleable output, alcohol concentration and annual operating hours. A tonne of product normalized to 95% v/v is a different basis from a tonne of anhydrous product. Cooling-water circulation is also different from fresh-water consumption.

Then draw the process boundary. The Indonesia design treats the front end through distillation, dehydration and DDGS as separate consumption schedules. Adding figures without checking their denominators can double-count duties or omit important equipment.

Heat integration transfers available vapor or condensate heat to another useful duty. Column pressures, temperature difference, fouling and control stability limit what is practical. For a retrofit, measure the baseline first and compare at equivalent feed, throughput and product quality. Agree meter locations and a stable test period before assigning an energy guarantee.

Explore the engineering behind the project

Revamp an idle distillery for a new feedstockAn existing plant has useful equipment and inherited constraints. A feedstock change starts with a condition survey and a complete mass balance, not a replacement list alone.Food-grade ethanol & ENA ethanol plantsPrecision separation for neutral alcohol applications. The process is selected around impurity control, sensory quality and the buyer’s complete product specification.Medical ethanol plantsHydrous and anhydrous ethanol routes for medical applications. We coordinate refining, dehydration, product-contact materials and sampling around the agreed pharmacopoeial or purchaser specification. The Indonesia upgrade combines a 50,000 t/y ENA scope with a 30,000 t/y medical anhydrous scope; the product split defines the process balance.Fuel ethanol plantsIntegrated ethanol production systems for fuel markets, with fermentation, heat-integrated distillation and molecular-sieve dehydration engineered as a coordinated process.Stillage evaporation & DDGS systemsCoordinate solids separation, thin-stillage evaporation, syrup blending and drying around a defined co-product specification. DDGS is a process system, not a general accessory; a molasses stillage route requires a different residue strategy.From mechanical completion to performance acceptanceCommissioning is a sequence of evidence, not a single start button. A clear test plan connects installed equipment, stable operation, measured output and product quality.

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