Changjo E&E Company Logo Changjo E&E
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Changjo Energy Plant

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Changjo E&E

#707 ACE Twin Tower, 285, Digital-ro Guro-gu Seoul
Contact name
Chul Kim

Quick Information

  • Place of Origin: Korea
  • :


What is Changjo ENergy Plant(CEP)?
  • This is a source technology to mix, process, and then convert flammable wastes to energy.
  • CEP is a plant for sustainable energy generation with plant and waste resources.
  • This cutting-edge technology can discompose all kinds of flammable organic matters with catalyst contact decomposition within a few minutes.
Features of CEP
Oil production with special catalyst
  • With patented catalyst
  • Decomposition of high-molecule organic matters using oil
Low molecule technology for non-biodegradable wood
  • Decomposition of organic compound
  • Oil-level molecule structure conversion technology
Simultaneous input of different materials
  • Simultaneous mixing and inputting of materials having different properties
  • Decomposition of high-molecule organic matters using oil
Mineral oil
  • Applicable as industrial and agricultural fuel
Economic feasibility to replace petroleum
  • Recycling of waste resources
  • Low manufacturing cost for economic feasibility
ECO-friendly energy generation
  • Molecular decomposition at room temperature and pressure
  • Free of air pollutants
High-molecule waste, biomass
  • Agricultural byproducts: Rice straw, chaff, corn stalk and other agricultural cellulose byproducts
  • Foresty byproducts: Branches, thinning-out tree, saw dust, wood pellet, waste furniture and waste wood
  • Rapid growth trees : Reed, switch glass and other grasses
Domestic and industrial wastes
  • Domestic wastes: Food garbage, domestic garbage, and agricultural film
  • Industrial wastes: Waste paper, Styrofoam, and waste plastic
  • Industrial byproducts: Food-industry byproducts, etc.
  • Waste oil: Waste cooking oil, waste lubricant, billing paper from boats, etc.
Oil conversion yield(for dried wastes)
3D drawing of proof-of-cencept plant
Classification Description
Pre-treatment The pre-treatment process sorts inflammable material (metal) in domestic wastes collected with fan and magnetic sorters, grinds it to certain size for smooth feeding and catalyst decomposition reaction in thermal decomposition process, and stores it in a material tank.
Catalyst decomposition Transferred from the material tank through screw feeder and bucket elevator to material supply hopper.

Stored materials are transferred from the material supply hopper through the rated-supply screw feeder to catalyst decomposition reactor while the catalyst is transferred from a catalyst storage hopper through the screw feeder. In the catalyst decomposition reactor, materials are decomposed at 400 - 450℃ while decomposed gas is transferred through top piping of reactor to a distillation column.

Solid residues are transferred from the catalyst decomposition reactor through bottom nozzles to a char cooling screw for sorting.
Refinement The decomposed gas is divided into light and heavy oils in the distillation column.

The gas is discharged from the top of distillation column, condensed through a condenser, and stored in an oil tank on top. It is transferred by a transfer pump to a light oil storage tank while some of stored light oil in top oil tank is refluxed to the top of distillation column.

Heavy-oil gas from the middle of distillation column is condensed through the condenser, stored in a tank, and then transferred through the transfer pump to a heavy oil storage tank.

Heavy residues that don't evaporate in the distillation column return to the catalyst decomposition reactor.

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