MILENA – OLGA - IGCC Most Efficient Energy from Waste Technology

Jan-Willem Könemann

Washington October 27th 2014

Royal Dahlman

• Technology company, established in 1886

• Serving the Oil & Gas and Power market worldwide

• Developing gasification and syngas purification

systems in cooperation with ECN since 2001.

• License Holder of MILENA and OLGA technology

• Developing complete biomass and waste fuelled

IGCCs in cooperation with Synova since 2012

Royal Dahlman & partners

FCC Slurry Oil Filtration Package on transport

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ETI: Searching the best EfW technology

Worlds most robust and efficient energy from waste technology contest

• The British ETI selected Royal Dahlman and two British companies to compete

in this challenge. These three competitors, selected out many applicants from

all over the world, received funds to support waste gasification tests, a FEED

study and project development work.

• In the coming months the winner will be announced, which will receive an ETI

investment for the commercial demonstration plant.

• Primary goals:

- Commercial deployment scale 5-20 MWe,

- Overall net energy form waste efficiency > 25%

- Availability > 80%

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MILENA-OLGA-IGCC net efficiency

RDF/SRF to electricity net efficiency

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MILENA-OLGA-IGCC net efficiency

RDF/SRF to electricity net efficiency

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Note: The total Energy from waste efficiency, as defined by the ETI, including MRF parasitic and energy content of the fine wet fraction (to digester is approximately 2% lower than the RDF/DRF to energy efficiency

MILENA-OLGA-IGCC efficiency

RDF/SRF to electricity net efficiency

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The Grimsby Renewable Power facility

Project Statistics

Project location Moody Lane, Grimsby, Lincolnshire, UK

Plant design capacity (flexibility) 70 to 110% of nominal capacity

Plant commercial feedstock Flexible, designed for RDF - SRF - Biomass

Waste input (at MRF) 60,000 to 80,000 tpa (based on typical MRF operation)

Plant RDF/SRF input 37,000 tpa SRF or 47,000 tpa RDF

Plant input energy 22-23 MW (LHV) at nominal capacity

Plant gross electricity generation 9,4 MW

Plant net electricity sales 7.6 MW

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Grimsby site

GRP facility MILENA-OLGA-Taurus-60 7 MWe IGCC plant

GRP facility Red outline is lease for 7 MWe plant

GRP facility RDF receipt & storage building

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Plant layout impression

RDF/SRF receipt building Visitor Centre Existing RWE - NPower plant 7MWe MILENA-OLGA IGCC

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Plant layout impression

MILENA gasifier

Power block

OLGA – AQUA gas cleaning

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MILENA – OLGA Most Efficient EFW

MRF The GRP facility receives

RDF/SRF bales from Transwaste, but also has

MRF functionality for flexibility and robustness.

Two shredders, a sieve and magnet belts

MILENA The MILENA scope includes flue gas treatment, coolers

and the cyclones

OLGA - AQUA OLGA (green) captures tars and dust and recycles these

to the MILENA. Downstream OLGA (blue)

water is condensed out and components like HCL and

NH3 are removed

Power Block A Solar/Caterpillar Taurus60 gas turbine, heat recovery

steam generator and a steam turbine that also receives steam from the

MILENA coolers

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The MILENA gasifier

MILENA an indirect gasifier

• Both reactors in one refractory lined reactor vessel

• 100% carbon to gas ratio

o Resulting in carbon free ash

o Resulting in a 5 - 15% higher cold gas efficiency

typically 75 - 85% excluding tars and NH3

• Separate flue gas exhaust, no or minimized nitrogen

dilution of the product gas

o Compared to air blown gasification a 3 to 4

times higher heating value.

o Compared to oxygen/steam blown gasification

a much higher efficiency (no ASU parasitic),

while still having 60% more heating value

o Very suitable for gas turbines

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Typical gas compositions

Improved gas quality

Typical applicability Engine: Wobbe > 4, Gas Turbine: Wobbe > 12

Product gas composition

downstream water condensation

(saturated at 30-35 °C)

Specification Sand bed Sand bed Sand bed Sand bed

CO 12.5 28.0 22.0 24.7

H2 11.3 21.6 14.2 15.9

CO2 13.1 29.7 15.8 17.7

O2 0.0 0.0 0.0 0.0

H2O 6.0 6.0 6.0 6.0

CH4 2.9 8.6 15.3 17.2

N2 51.2 0.6 10.9 1.0

CxHy (>CH4 & < toluene) 1.7 3.7 13.9 15.6

Wobbe (LHV, MJ/Nm3) 5.1 12.0 21.8 24.5

Clean Product GasCFB

Air fluidisation

MILENA

Air fluidisation (riser)

MILENA

Steam fluidisation (riser)

CFB

oxygen/steam fluidisation

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OLGA tar removal

Portugal: CFB gasifier, OLGA gas cleaning,

Caterpillar 3516A+ gas engine

OLGA, a tar/oil based gas scrubber

• OLGA captures tars with high efficiencies, well within specification for gas engines, gas turbines, fuel cells and catalytic processes (SNG, FT-diesel)

• OLGA has low pressure drop and only consumes some electricity for pumps and tracing < 100 kW for a 9000 kW gross plant (<1%)

• OLGA does not change the main gas composition: high energy carriers like methane, ethene and the bulk of the benzene and toluene stay in the product gas

• OLGA is able to handle very high tar loads, up to 50 g/Nm3, allowing us to optimize the MILENA towards CH4 production and efficiency

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OLGA Experience & Performance

Lab scale pilot ECN Industrial Pilot ECN France

Caterpillar 3516 A+ engines

Portugal

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Tar analyses

Parameter Unit CFB gasifier

Raw Gas Downstream

OLGA Efficiency

Total tar mg/Nm³ 17,106 171 99.0%

Total tar excl. BTX mg/Nm³ 16,040 63 99.6%

Total tar excl. BTX & unknowns mg/Nm³ 10,349 9 99.9%

Naphthalene (key-component) mg/Nm³ 2,822 < 2.5 > 99.9%

Phenol (key-component) mg/Nm³ 386 < 2.5 > 99.9%

Tar dewpoint ° C > 350 < 15

° F > 660 < 59

Tar aerosols (incl. dust) mg/Nm³ -- 10

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Tests on refuse derived fuel so far Clean Gas flare

(downstream OLGA) Raw Gas flare

(downstream gasifier)

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Back to the MILENA-OLGA-IGCC

MILENA gasifier

Power block

OLGA – AQUA gas cleaning

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Energy Balance

Gas Turbine

MILENA Gas Cleaning

Heat Recovery Steam Generator

Steam Turbine

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Energy Balance

23,6 MW RDF

3,7 MW electricity

18,1 MW Clean Product Gas

13,3 MW steam

TOTAL NET (RDF to electricity): efficiency 32%,

5,7 MW electricity

Parasitic 1,8 MW

7,6 MW

28%

32%

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Grimsby development opportunities

The Grimsby facility is the ideal basis

for development of future applications.

Clean product gas is available at

pressure for slipstream tests

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SNG, green gas, overall efficiency 70%

FT liquid fuels

Thank You!

Jan-Willem Könemann

www.dahlman.nl

www.olgatechnology.com