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BDI - BioEnergyInternational AG

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BDI at a glance

• Highly professional special plant construction company from Austria

• Tailor-made, turn-key solutions

• Industrial BioDiesel & BioGas Multi-Feedstock technology

• 20 years of experience: more than 40 reference plants worldwide

• Listed at Frankfurt stock exchange, equity ratio more than 50%

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BioDiesel

RetroFit

Chemical Processing

BioLife Science

BioGas

BDI – Company presentation

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Financial numbersEquity

EmployeesTurnover

Order intake

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Overview

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Perfect fit for brew industry1. Brewery Process

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2. Raw Materials

Raw Materials of the BreweryProcess Malt Hops Yeast Water

Filter aid Diatomite

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3. Products

• Products and by products of the brewing process

Beer

Spent Grains ~ 20 kg/hl brewed beer

Surplus Yeast ~ 1,5 kg/hl brewed beer

Filtration Sludge ~ 0,9 kg/hl brewed beer

Waste Water*

* The amount of waste water depends on the rate of internal recirculation of waste water

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4. By - Products green energy potential

• Spent Grain

TS ~ 18-28%, VS ~ 95% of TS

TKN ~ 8 kg/t

Methane Yield ~ 435 Nm³ CH4 per t VS, ~ 50 days to > 99%

• Surplus Yeast

TS ~ 15%, VS ~ 95% of TS

TKN ~ 12 kg/t

Methane Yield ~ 444 Nm³ CH4 per t VS, ~ 30 days to > 99%

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5. Brewery example

• Production of 1.000.000 hl produced beer

specific energy demand of ~ 15 kWh per hectoliter

energy production out of by-products ~ 15 Mio kWh

biogas out of by-products can substitute up to 100% of the energy demand of a brewery

• Digestate

high quality digestate due to high quality raw materials

high rate on nitrogen, phosphorus and potassium

in process for the certification as a bio-fertilizer (high value)

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Challenges

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1. Fluctuation

• Seasonal fluctuation

the brew amount varies from month to month

high rates in summer, middle rates in winter and low rates in fall and spring

• Weekly fluctuation

brewing days per week varies from brewery to brewery

high rates of gas demand on only a few days per week

possibility that on weekend no gas is needed

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2. Feed vs. Fuel

• Spent Grain is rich in protein

often used as cattle feed

goes off very fast, specially in summer (~ 2 days)

demand of farmers depends on the weather conditions and the quality of grass harvest

to get rid of the spent grains, breweries depend on farmers

this results in price fluctuations

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Example Göss(Heineken Group)

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1. Motivation

• Getting the first big brewery which is 100% green

• Getting independent from energy prices

• Getting independent from farmers

• They already reduced their natural gas consumption by ~ 50%

using waste heat of the saw mill

1.500 m² solar field

producing biogas out of the waste water (UASB reactor)

technical and organizational changes

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2. Status Quo

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3. BDI biogas plant - green brewery

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BioGas | GössAustria

Capacity: 0,71 MW BioGas; 0,45 MWel.; 0,47MWth Substrate: 20.650 tons/year

Scope of delivery: construction, planning of overall plant

Scope of services: engineering, project management, plant construction, commissioning, operation

Substrates: Brewery residues: spent grain, surplus yeast, filtration sludge

Construction start: spring 2015

Start: October 2015

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Benefits

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Brew Industry - Green benefit

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Biogas to Boiler

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Biogas for use in Gas Engine (CHP)

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Biogas Cleaning and Upgrading

Pressure Swing Adsorption PSA

Absorptive processes (Amine scrubbing)

Waterscrubbing

Physical absorption with organic solvents

Cryogenic processes

Membrane processes

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Biogas Cleaning and Upgrading

Methane CH4

Carbon dioxide CO2

Nitrogen N2

Oxygen O2

Hydrogen sulphide H2S

Water vapor H2O

Ammonia NH3

Siloxanes (R2(SiO)n)

Dust

Particles

Upgrading

Biomethane / CH4(CO2, N2, O2)

CO2(CH4, N2, O2)

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Biogas Cleaning and Upgrading Membrane Technology

Different technologies (e.g.): • Amine scrubbing• PSA• Multi-stage membrane filtration

Requirements for grid injection:• <98% methane (area dependent)• Humidity• Pressure• Purification/conditioning• Odorisation

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Results

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Biogas Biomethane

Gas s

hare

in

% v

ol.

Nitrogen (N2)

Oxygen (O2)

Carbon dioxide (CO2)

Methane (CH4)

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Compressed Biogas (CBG) as vehiclefuel

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Natural gas & Biogas as alternative vehicles fuel• Fleets are converting to CNG for cost savings and

environmental sustainability.

• Compressed Biogas (Biomethane) can be used in vehiclesoperated with natural gas without any engine modification

* depending on driving style. Information based on the Audi A3. Average price. Publication of the Federal Ministry of Economics and

Technology (Germany) from 30.6.2014.

275 km

201 km

184 km

128 km

Biogas direct fuel station

Biogas via grid injection

Liquefied Petroleum Gas

Diesel

Gasoline

Distance with fuel for 10€*

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Compact stand-alone CBG fuel station - key parameters• Biogas upgrading unit

Plant capacity:

• 50 Nm3/h raw biogas

• ~25 - 30 Nm3/h bio methane

> 96% CH4

< 2% CO2

< 1% N2

< 1% O2

• Gas storage 18 bottles á 50 l (300 bar)

• Filling station

• Optional credit card payment station

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Examples for filling stations

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BDI Reference plants world wide

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Hrvoje MilosevicGlobal Business Development Manager

+43 664 6973409hrvoje.milosevic@bdi-bioenergy.com