Hazardous Waste

Thermal utilisation of hazardous waste plays a critical role in the chemical industry.

Example:
Hazardous waste incineration plant Lonza AG in Visp / Switzerland

  • Features
  • Long residence time of flue gases in the radiation part with cooling down to 450 °C
  • Low flue-gas velocities for lowest possible erosion
  • Operation in natural circulation
  • Highly efficient vaporiser heating surfaces in the radiation section
  • Complete accessibility of the wall heating surfaces from outside
  • Masonry-free and flue-gas-tight overpressure design
  • Cleaning of the convective heating surfaces in operation by mechanical vibration
  • Minimum number of ash-removal points
  • Advantages
  • Operation determined exclusively by the waste programme
  • High-temperature-corrosion free boiler operation
  • Complete utilisation of the exhaust heat in the scope of the existing cogeneration
  • Our services and deliveries for this project:
  • Thermal- and mechanical design
  • Calculation of the water-, vapour- and flue-gas pressure losses
  • Establishment of the
    • Documents for design review according to the applicable regulations
    • Construction and production drawings for the boiler with the connecting pipelines, associated fittings and required bills of materials
    • Required welding details, incl. welding and inspection plans
    • Mass extracts
    • Order specifications for the pressurised and non-pressurised parts
    • Assembly description
    • Project and assembly schedules
  • Boiler manufacturing
  • Basic and detail engineering for
    • Planning of the steel construction and operating platforms
    • Establishment of the statics
    • Firing system
    • Flue gas cleansing
    • Heating surface cleansing facilities
    • Ash removal
    • Masonry and isolation
  • Engineering support during manufacturing and assembly
  • Delivery of
    • Steel construction and operating platforms
    • Heating surface cleansing facilities
    • Ash removal
    • Masonry and isolation
  • Boiler assembly and commissioning

Example BASF in Ludwigshafen,
Residue combustion plant

  • Our services and deliveries for this project:
  • Thermal- and mechanical design
  • Calculation of the water-, vapour- and flue-gas pressure losses
  • Establishment of the
    • Documents for design review according to the applicable regulations
    • Construction and production drawings for the boiler with the connecting piping, associated fittings and required piece lists
    • Required welding details, incl. welding and inspection plans
    • Mass extracts
    • Order specifications for the pressurised and non-pressurised parts
    • Assembly description
    • Project and assembly schedules
  • Boiler manufacturing
  • Basic and detail engineering for
    • Planning of the steel construction and operating platforms
    • Establishment of the statics
    • Firing system
    • Flue gas cleansing
    • Heating surface cleansing facilities
    • Ash removal
    • Masonry and isolation
  • Engineering support for manufacturing and assembly
  • Delivery of
    • Steel construction and operating platforms
    • Heating surface cleansing facilities
    • Ash removal
    • Masonry and isolation
  • Boiler assembly and commissioning
Lonza AG

Technical Data

Thermal input 12 MW
Steam output (max.) 18 t/h
Steam pressure 87 bar
Saturated steam temperature 305 °C
Supply water temperature 130-200 °C






BASF Ludwigshafen

Technical Data

Incineration capacity 5.000 kg/h
Mean heating value 25.000 kJ/kg
Thermal input 35 MW
Steam output 36 t/h
Steam pressure 46 bar
Steam temperature 350 °C
Supply water temperature 103 °C