bdi - bioenergy international ag - fakultet strojarstva i...
TRANSCRIPT
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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