Granorte 2002 (EC - Biomass and Coal combustion)

Mechanical ReCyclone® MH system for PM emission control in a 9500m3/h at 320ºC cork waste boiler.

  • This equipment is composed by 4 hurricane cyclones and 1 mechanical recirculator.
  • It was installed to replace a multicyclone deduster which was above the legal emissions limit (150mg/Nm3).
  • Emissions: < 50mg/Nm3
Granorte, Lda.
Portugal
2002
Corkart (EC - Biomass and Coal combustion)

Mechanical ReCyclone® MH system for PM emission control in a 15 000m3/h at 220ºC cork waste boiler.  

  • This equipment is composed by 8 hurricane cyclones and 2 mechanical recirculators.
  • It was installed in a new boiler. (Legal emissions limit: 150mg/Nm3 at 11% O2).
  • Emissions: <150mg/Nm3 at 11% O2
Corkart Lda.
Portugal
2003
Amorim e Irmãos (EC - Biomass and Coal Combustion)

Mechanical ReCyclone® MH system for PM emission control in a 8 000m3/h at 280ºC cork dust boiler.  

  • This equipment is composed by 6 hurricane cyclones and 4 mechanical recirculators.
  • It was installed to replace a cyclone deduster, which was above the legal emissions limit (150mg/Nm3).
  • Emissions: 30-90mg/Nm3
Amorim & Irmãos, S.A.
Portugal
2003
Plysorol (EC - Biomass and Coal Combustion)

Mechanical ReCyclone® MH system  for PM emission control in a 57,000m3/h (9 MWth) at 280ºC wood waste boiler. 

  • This equipment is composed by 24 hurricane cyclones and 24 mechanical recirculators.
  • It was installed to replace a multicyclone deduster which was above the legal emissions limits (100 mg/Nm3).
  • Emissions: < 100 mg/Nm3
Plysorol
France
2006
MJO (EC - Biomass and Coal combustion)
Mechanical ReCyclone® MH system for PM emission control in a 50,000m3/h (6MWth) at 280ºC cork waste boiler.
  • This equipment is composed by 24 hurricane cyclones and 4 mechanical It was installed in a new boiler and is working without recirculation, since emissions are under the legal limit (150mg/Nm3).
  • Emissions: < 150mg/Nm3
MJO Lda.
Portugal
2007
Laminar (EC - Biomass and Coal combustion)
Mechanical ReCyclone® MH system for PM emission control in a 27,000m3/h at 200ºC wood waste boiler.
  • This equipment is composed by 18 hurricane cyclones and 12 mechanical recirculators.
  • It was installed to replace a multicyclone deduster, which was above the legal emissions limit (150mg/Nm3 at 11% O2).
  • Emissions: < 100mg/Nm3 at 11% O2
Laminar, S.A.
Portugal
2006
CSC Portuguesa (EC - Biomass and Coal Combustion)
Mechanical ReCyclone® MH system for PM emission control in a 9600m3/h at 250ºC wood waste boiler.
  • This equipment is composed by 6 hurricane cyclones and 4 mechanical recirculators.
  • It was installed in a new boiler in France.
  • Emissions: < 100mg/Nm3
CSC (Portuguesa)
France
2008
Granorte 2008 (EC - Biomass and Coal combustion)
Mechanical ReCyclone® MH system for PM emission control in a 9500m3/h at 320ºC cork waste boiler.
  • This equipment is composed by 4 hurricane cyclones and 6 mechanical recirculators.
  • Expected emissions: < 100mg/Nm3
Granorte, Lda.
Portugal
2008
PT Basuki 2011 Indonesia (EC - Biomass and Coal Combustion)

Hurricane system for PM emission control in a 14,000m3/h at 230ºC coal BFB boiler.

  • The system is composed by 8 hurricane cyclones with ø850mm, and 8 mechanical recirculators with ø800mm. 
  • Emissions: < 100mg/Nm3
PT Basuki
Indonesia
2011
L Sole 2011 (EC- Biomass and Coal Combustion)
Electrostatic ReCyclone® EH system to reduce PM from biomass boiler (pine residues) operating at a maximum continuum flow rate of 3,900m3/h at 180ºC.
  • The installation is composed by 4 Hurricane cyclones and 4 electrostatic recirculators with ø600mm.
  • Expected emissions: < 30mg/Nm3
L. Solé
France
2011
L Sole Chile 2011 (EC- Biomass and Coal Combustion)

Mechanical ReCyclone® MH system for PM emission control in a 30,000m3/h (6MWth) at 280ºC biomass boiler.

  • This equipment is composed by 16 hurricane cyclones and 16 mechanical recirculators.
  • It was installed in a new boiler in Chile.
  • Emissions: <55mg/Nm3
L. Solé.
Chile
2011
Sonae Novobord (EC - Biomass and Coal Combustion)

Mechanical ReCyclone® MH system designed to control PM emissions from two biomass boilers burning wood waste and wood chips summing more than 90,000m3/h in flow rate. 

  • The purpose is to reduce particulate matter emissions below the limit of 100mg/Nm3
  • Emissions: < 100mg/Nm3
Sonae Novobord
South Africa
2012
Jaremar Honduras 2013 (EC - Biomass and Coal Combustion)

Hurricane system to reduce PM emissions from the off gases of a palm shell and fibers biomass boiler with a gas flow rate of 114,935m3/h at 204ºC.

  • The system is composed by 36 hurricane cyclones with ø800mm
  • ACS guarantees emissions below 150mg/Nm3 with a pressure drop of 1.0 kPa
  • Expected emissions: <150mg/Nm3 at 11% O2
Jaremar
Honduras
2013
Jaremar Caicesa 2013 (EC - Biomass and Coal Combustion)

Hurricane system to reduce PM emissions from the off gases of a palm shell and fibers biomass boiler (Fraser) with a gas flow rate of 85,127m3/h at 256ºC. 

  • The system is composed by 24 hurricane cyclones with ø800mm
  • ACS guarantees emissions below 150mg/Nm3 with a pressure drop of 1.0 kPa
  • Expected emissions: <150 mg/Nm3 at 11% O2
Jaremar
Honduras
2013
ACC (EC - Biomass and Coal Combustion)

Hurricane MK system designed for particle reduction in biomass boilers (cork dust) at Amorim Cork Composites ( 52 000 Nm3/h at 170ºC )

  • Each system is composed by 32 hurricane cyclones 
  • Emissions: <100 mg/Nm3
Amorim Cork Composits
Portugal
2014
Basuki Philippines 2013 (EC - Biomass and Coal Combustion)

Mechanical ReCyclone® MH system for PM control in a coal and rice husk BFB 4ton/h boiler with a flow rate of 9,300m3/h at 230ºC.

  • The system is composed by 6 hurricane cyclones with ø700mm and 6 mechanical recirculators with ø600mm
  • It was installed to comply with emissions below 150mg/Nm3
  • Emissions: < 150mg/Nm3
Basuki
Philippines
2013
Basuki 2013 Indonesia (EC - Biomass and Coal combustion)
Mechanical ReCyclone® MH system for PM control in a coal BFB 15ton/h boiler with a flow rate of 34,000m3/h at 230ºC.
  • The system is composed by 12 hurricane cyclones with ø850mm and 6 mechanical recirculators with ø800mm
  • It was installed to comply with emissions below 150mg/Nm3
  • Emissions: < 150mg/Nm3
Basuki
Indonesia
2013
Hurricane HR System to reduce particulate matter from a biomass boiler burning pellets ( Norbidel )
Hurricane HR System to reduce particulate matter from a biomass boiler burning pellets under 50 mg/Nm3 for NORBIDEL ( 10 500 m3/h at 220ºC )
Expected maximum emissions ( mg/Nm) [<30]
Expected total pressure drop (Kpa) [1.2]
Norbidel, Fepsa
Porto, Portugal
2013
ReCyclone MH System to Reduce Particulate Matter from a biomass boiler burning a mixture of mesocarp fibre and palm kernel shell
Recyclone MH to Reduce Particulate Matter from a biomass boiler burning a mixture of mesocarp fibre and palm kernel shell ( 137 620 m3/h at 320ºC )

Guaranteed emissions 12% CO2 (mg/Nm3), after the system [<150]
Expected emissions 12% CO2 (mg/Nm3), after the system [ <100]
Expected total pressure drop (KPa) [<1.25]

Tradewinds
Bintulu, Malaysia
2016
Hurricane MK Cyclones for PM emission reduction at Britton Timbers
Hurricane MK cyclone system for PM emission reduction on a 2.5MWth biomass boiler at Britton Timbers. (8 760m3/h at 328°C)

Emissions to Guarantee (mg/Nm3) [<80]
Expected total pressure drop (kPa) [0.9]
Measured Emissions in April/2016 (mg/Nm3) [48]

Britton Timbers
Smithton, Australia
2016
Hurricane HR System to reduce particulate matter emissions at KMW Energy
Hurricane HR cyclone system to reduce particulate matter emissions from a 600Hp biomass boiler burning bark at KMW Energy ( 27 959m3/h at 254°C )

Guaranteed emissions (mg/Rm3dry at 7%O2) [?150]

Expected emissions (mg/m3 | mg/Rm3dry at 7%O2) [36 | 108]

Expected pressure drop (kPa | in H2O)* [1.2 | 4.8]

* This pressure drop is only for the system, does not include ducts.
KMW Energy
Quebec, Canada
2017
Hurricane
Numerically optimized cyclones, considering particle agglomeration

Hurricane lines of cyclones are a solution to reduce coal and biomass combustion emissions to under legal emission limits. Depending on the type of furnace (Grate, BFB, CFB), on the type of fuel (different types of coal and biomass), and on the chosen Hurricane line of cyclones, emissions from the furnace can be reduced in 85% to 96%, depending on the requirements of the client. 


If a new developed Hurricane MK type of cyclone is chosen,  a sole Hurricane MK system is able to reduce emissions under 30mg/Nm3 for an inlet concentration of 700mg/Nm3 after the boiler, or 250mg/Nm3, if a pre-separator is used upstream.


For non-abrasive dusts, the pre-separator can be exempted, with no significant results in emissions.

  • Very low emissions, ranging from [26-105mg]/Nm3 depending on the boiler, fuel and Hurricane line of cyclones used. 
  • Custom designs (single or parallel arrangement)
  • Low pressure drop: [100 - 150] mm w. g.
  • No temperature restrictions
  • Robust construction with no moving parts
  • Near zero maintenance and downtime costs
  • Very low operating costs
  • Pre-assembled modular system with very easy and fast installation. Batteries of 2, 4, 6 or 8 cyclones are shipped pre-assembled in a supporting structure with or without thermal insulation.
  • Low investment cost

Features

1.  Air with fly ash from the boiler or from the pre-separator

2.  Hurricane Cyclones. (Batteries of 2, 4, 6 or 8 units )

3.  Rotary discharge valve

4.  Dust receiver & Collected particles

5.  Clean air

Note: supporting structure, insulation and ductwork are not represented

ReCyclone MH
Optimized cyclones with mechanical recirculation

A ReCyclone MH can work with several lines of Hurricane cyclones with different performances depending on the requests of the clients.


Depending on the type of furnace (Grate, BFB, CFB), on the type of fuel (different types of coal and biomass), and on the chosen Hurricane line of cyclones, emissions from the furnace can be reduced in 92,5% to 98,2%. A ReCyclone® MH decreases emissions of Hurricane cyclones alone by 40 to 60 %


As with cyclone systems, ReCyclone® MH systems are very robust, do not have temperature limitations and do not have moving parts to be frequently changed. For non-abrasive dusts, the pre-separator can be exempted, with no significant results in emissions.

  • Very high efficiencies: decreases emissions of Hurricane Cyclones by [40-60]%
  • Very low emissions, ranging from [13-53mg]/Nm3 depending on the boiler, fuel and Hurricane line of cyclones used. 
  • Pressure drop: [140-180] mm w. g.
  • No temperature restrictions
  • Robust construction with no moving parts
  • Near zero maintenance and no downtime costs
  • Low operating costs
  • Pre-assembled modular system with very easy and fast installation. Batteries of 2, 4, 6 or 8 cyclones or mechanical recirculators are shipped pre-assembled in a supporting structure with or without thermal insulation. 
  • Low investment costs

Features

1. Air with fly ash from the boiler or from the pre-separator

2. Hurricane Cyclones. (Batteries of 2, 4, 6 or 8 units )

3. Rotary discharge valve

4. Dust receiver & Collected particles 

5. Clean Air

6. Mechanical recirculators. (Batteries of 2, 4, 6 or 8 units)

7. Recirculation fan 

 

Note: supporting structure, insulation and ductwork are not represented

ReCyclone EH
Optimized cyclones with electrostatic recirculation

Electrostatic ReCyclone Systems (ReCyclone EH) are used for biomass and coal combustion emission control whenever very low emissions are required and whenever there is a large proportion of very small particules in the fly ash.

A ReCyclone EH can work with several lines of Hurricane cyclones with different performances depending on the requests of the clients.


Depending on the type of furnace (Grate, BFB, CFB), on the type of fuel (different types of coal and biomass), and on the chosen Hurricane line of cyclones, emissions from the furnace can be reduced in 96,5% to 99,4%.


ReCyclone® EH decreases emissions of a ReCyclone® MH alone by 40 to 70 %. As with cyclone systems, ReCyclone® EH systems are very robust, do not have temperature limitations and do not have moving parts to be frequently changed.


ReCyclone® EH systems have low sensitivity to either low or high dust electrical resistivity which is a significant advantage to treat emissions from high resistive biomasses, such as straw. 

  • Very high efficiencies: decreases emissions of a ReCyclone MH by [40-70]%
  • "Bag Filter comparable" emissions: ranging from [4-25mg]/Nm3 depending on the boiler, fuel and Hurricane line of cyclones used. 
  • Pressure drop: [120-160] mm w. g.
  • Operates up to 400oC
  • Robust construction with no moving parts (no rapping mechanisms)
  • Low maintenance and downtime costs
  • Low operating costs (Electrical field power = 5 % fan power)
  • Pre-assembled modular system with very easy and fast installation. Batteries of 2, 4, 6 or 8 cyclones or electrostatic recirculators are shipped pre-assembled in a supporting structure with or without thermal insulation.
  • Reasonable investment costs
  • Not sensitive to variable flow rates
Features
1. Air with fly ash from the boiler or from the pre-separator
2. Hurricane Cyclones. (Batteries of 2, 4, 6 or 8 units)
3. Rotary discharge valve
4. Collected particles
5. Clean Air
6. Recirculation ducting
7. Recirculation fan
8. Electrostatic recirculators. (Batteries of 2, 4, 6 or 8 units )

Note: supporting structure, insulation and ductwork are not represented
Biomass and Coal Combustion
For particulate matter (PM) emission control in high temperature exhaust streams, such as those from biomass or coal boilers and heaters, common dedusters such as cyclones and multicyclones are not able to comply with current emission limits. This is mainly due to their low efficiency, particularly for small particles (< 10µm). In order to meet emission limits this usually requires an additional investment in a final stage deduster.

Bag filters (BF) are very efficient dedusters. They can also be very high maintenance requiring regular cleaning and new filter elements. Biomass and coal boilers frequently release burning particles that damage filter elements and result in immediate increases in emissions. Solving this problem means spending money and production downtime.

Electrostatic Precipitators (ESPs) are very effective for a given range of dust resistivity. However, efficiency frequently drops outside this range as a consequence of temperature changes. The cost of retrofitting an ESP or process changes are out of reach for many companies.

Venturi Scrubbers are a good alternative for end stage dedusters if the infrastructure to treat the liquid effluent already in place. If not the cost of secondary wet pollution restricts its usage.

Clients' needs include a highly efficient final dedusting system at a reasonable price, robust enough to operate for several years without significant maintenance or operating costs and avoiding production downtime.
Biomass & Coal Combustion
Biomass & Coal Combustion
Biomass & Coal Combustion
Biomass & Coal Combustion

Biomass and Coal Combustion | General Arrangement  


The general arrangement of a biomass coal combustion plant is the use of a pre-separator to reduce the concentration of particles after the boiler, especially the coarser dust which is richer in Silica (SiO2).  This is the case of several types of biomass, such as Eucalyptus, Palm Shell and Fibers, Empty Fruit Bunch, Rice Husk and all types of coal. 


The Median Volume Diameter (MVD) of the fly ash coming directly from the furnace is typically 11µm with 8% under 1µm. The MVD of the particles escaping the pre-separator is usually 6 to 8µm.


The end stage deduster (either a Bag Filter, a ESP, a Venturi Scrubber, a Hurricane or a ReCyclone System), is placed downstream of the pre-separator.