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Jens Dall Bentzen

Dall Energy biomass furnace- Fuel flexible & low emission

Jens Dall BentzenManaging director

Jens Dall Bentzen

Challenges with standard technology

2

Narrow specification of biomass -> High fuel cost

Emission standards -> expensive filters

50-100% load -> Summer boiler + winter boiler

Standard technologyanno 2015

With new emission standards must Multicyclone be replacedwith Electrostaticfilter

Jens Dall Bentzen

Dall Energy solution Multifuel – low emission – high efficient - biomass system

3

Costumer benefits

1.Furnace - Low cost fuel

(20-50% cheaper biomass)

- 95% less dust - 10-100% load adjustment - Low NOx & CO - Low maintenance- Low power consumption

2.Energy recovery10-20% extra efficiency

Developed with support from EUDP & the Danish Agency for Science Technology and Innovation

1

2

Same CAPEX ….but 20-40% reduction in OPEX!

DallEnergy Furnace

Standard boiler

DallEnergy

Scrubber System

Jens Dall Bentzen

Dall Energy multi fuel furnace

4

Biomass

Biomass converted to gas and ash In the updraft gasifier is the gas produced. Due to low gas velocity through the biomass layer most particles are kept in the bed and few are transported to the combustion zone.

The temperature in the ash layer is kept at 100oC, hence low maintenance and long lifetime of screws

Hot flue gas with ultra low particle content

700oC

800oC

Gas is burned Gascombustion chamber designed for low NOx, CO and dust emissions.The radiation from the gas combustion transfers heat to the top of the biomass layer resulting in bed height of only 2 m.

25oC

950oC

100oC

Jens Dall Bentzen

European Patent award 2011

Jens Dall Bentzen

Dall Energy in CNN internationalhttp://edition.cnn.com/videos/business/2013/10/24/spc-make-create-innovate-biomass-power.cnn

6

Jens Dall Bentzen

Dall Energy Technology Timeline

7

2009/10 2011/13

Process verification

1. Gen.8 MW

2014/15

3. Gen.2. Gen.

2 MW USA 9 MW-DK

2016 ->

Furnace at Bogense heating

Marcel & CharlieWarwick Mills

Heat only plants in Denmark + other

countries

2 MW pilot plantSønderborg

Plant

CHP plant in DK:10 MW heat

+ 2 MW power

Jens Dall Bentzen

Sønderborg plant

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Jens Dall Bentzen

EmissionsNo cyclone / ESP / bag filter

0

100

200

300

400

500

600

700

NOx CO Dust

mg/

Nm

3

Emissions from Dall Energy plants

Danish Limits

Bogense

Sønderborg

Warwick

Jens Dall Bentzen

Fuel flexibility

Fuel , Sønderborg 2015

Fuel samples, Bogense 2013

Jens Dall Bentzen

Dall Energy business model for Germany

Turn key partner

Sales

Project Management

Installation Services

After Sales Service

Customer

Contract

Dall Energy

Engineering

Sales feeEngineering fee

Furnace Control

Scrubber system

Hardware

• Feeder• Furncace• Ash system• Flue scrubber• Condensate filter• Insulation• Controll

• Jens Dall• Anders Brendstrup•Gert Bjørn• Paul Rietveld• Jørgen Beck• Bjørn Teislev• Claus Geest• FORCE technology

Suppliers

Ingeneering

Hardware

Jens Dall Bentzen

Thank you – any questions

Charlie Howland og Bolette DallApril 2015