Catalyst

A catalyst is a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction. Catalysis is the process of adding a catalyst to facilitate a reaction. Using catalysts leads to faster, more energy-efficient chemical reactions.

Honeycomb Catalysts

Several pitches for applications such as WtE and engine, etc.

  • High SCR activity at high NO2 ratio.
  • High SCR activity, low SO2 oxidation
  • Optimized pressure drop
  • Variable length and number of cells (6-300 cpsi)
  • Low to medium-dust flue gas applications (high-grade coal, oil, gas, diesel or WtE applications)

Honeycomb SCR Catalyst - Various Applications

High Temperature Catalyst

Plate Catalysts

For high dust applications e.g. coal fired power plants

  • Variable pitch, minimal dust deposition
  • High SCR activity, low SO2 oxidation
  • High erosion and poison resistance
  • Low pressure drop
  • Plate-to-plate clearance, variable Specific
  • High-dust flue gas and special applications (coal-fired, industrial processes & refinery power plants)

References Cases

Avedøre Unit 2, DK

Owner/Operator:

DONG Energy A/S

Rating:

800 MWt

Fuel:

Wood pellets

Catalyst reload:

2011 – 2013

NOx emission target:

< 150 mg/Nm3

Ammonia slip:

< 5 ppm

Catalyst Data:

SINOx® plate-type

High Dust Application

Polaniec, Poland

Owner/Operator:

GDF Suez

Rating:

447 MWt

Fuel:

Wood chips + Agro mixture

SCR first start-up:

2012

NOx Reduction:

> 30%

Ammonia slip:

< 5 ppm

High Dust Application

SNCR with SCR-slip catalyst

Oxidation Catalysts

For removal of odor and volatile compounds

  • CO, VOC, HC Oxidation
  • Gas and Diesel engines
  • Gas turbines
  • Typically 100-200-300 cells / in2
  • Custom Block Sizes
Round Max:
Φ950mm
Rectangle max:
762 x 609mm
Depth:
38-150mm
  • Fully Brazed for Strength
  • Thin walls for Low Pressure Drop
  • Economical Formulations
  • Easy Reload of other Designs

Catalyst Design Factors

  • Application / Process
  • Exhaust Gas Composition (CO, VOC, O2, H2O)
    • Flow Rate, Temperature, Pressure
  • Catalyst Contaminants
  • Required Destruction Efficiency
  • Constraints
    • Pressure Drop, Space
  • Maintenance Interval
  • Durability
  • Economical Constraints
    • Target Costs, PGM-Loading, PGM-Prices

Diesel Particulate Filter Catalyst & Systems

High PM reduction for use with Diesel engines >1kw – >1,000kW

  • Passive and active DPF systems
  • 9 Regeneration strategies
  • 4-way (combination) Diesel-Systems (SCRT)
  • Availability for engine power > 1kW up to >1,000kW
  • Solutions for all Emissions stages incl. TIER 4
  • Full electronic filter Monitor incl. Datalogger
  • Customized installation kits
  • Suitable for retrofit and OE-fit
  • Long lifetime

References Cases

Forklift, D

  • 1 engine Nissan 36 kW
  • Fuel Diesel
  • Active regeneration through burner (DPF-BU)
  • Guaranteed reduction PM > 85%

Wheel loader, D

  • 1 engine Volvo 103 kW
  • Fuel Diesel
  • Active regeneration through electrical heater
  • Guaranteed reduction PM > 85%

Discuss Your Interest Of

Catalyst

Arrange a converstion with our expert.