SNOW LEOPARD PROJECTS GMBH BIOGAS IS OUR BUSINESS · ©Snow Leopard Projects GmbH Advantages...
Transcript of SNOW LEOPARD PROJECTS GMBH BIOGAS IS OUR BUSINESS · ©Snow Leopard Projects GmbH Advantages...
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© Snow Leopard Projects GmbH
SNOW LEOPARD PROJECTS GMBHBIOGAS IS OUR BUSINESS
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High Performance Anaerobic Digestion of
Straw, Manure and Agricultural By-Products
& Production of Solid Fertiliser
Katharina Danner, MSc. Beijing, 23. October 2018
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Situation
99,9% of biogas plants are build to treat
MAIZE SILAGE and SLURRY
Future is not Maize Silage.
Future are AGRICULTURAL BY-PRODUCTS:• Straw (maize, rice, etc)• Manure • Fibrous (=cellulosic) material
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Flexibility in Feedstock 进料的灵活性- Example SLP AD Plant Laburnum, UK 在英国建立的厌氧发酵工程
Old potatoes 坏土豆
Straw 秸秆 Corn moulded 玉米颗粒
Chicken Manure 鸡粪Residues of pea plants 豌
豆残渣
Vegetable Waste 素菜残余物
Cattle Manure 牛粪
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Situation
• ca. 50% rice straw
• ca. 30% maize straw
Source: http://www.efdinitiative.org/sites/default/files/publications/rb_15-06_final_nov_16_2015.pdf;
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© Snow Leopard Projects GmbH
Situation
Existing Biogas Plants cannot
Mix it
Heat it
Feed it
FAILED Biogas Plants in China and Germany
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Solution
Batch Hydrolysisworks like the rumen of a cow
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SLP – Mimicking the Bovine Digestion System
Cellulose is most common and cheapest biomass worldwide!The aim is to digest cellulose!
Cattle have 4 stomachs- and can digest cellulose
Pigs have only 1 stomach- and can only digest starch, protein and
fat
STRAW
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low fiber
= Pig Stomach
Single Stage Biogas Plant
95% of the biogas plants are Single StageLow Fibre
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© Snow Leopard Projects GmbH
low fiber
Important:
Single Stage Biogas Plant
2 pigs do notequal 1 cow!
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= Cow Digestion System
high fiber
2-stage Biogas Plant
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2-stage Biogas Plant
Feedstock: Straw / Gras
Low Energy
Cheap
high fiber
High Fibre
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Bas
ic-L
ayou
t
Pump Room
Hydrolysis 1 Hydrolysis 2
DigesterFinal Storage
CHP
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Solution
Batch Hydrolysis• 60°C Temperature• 40 – 50 kg VS/m³ loading rate (Mixers!)
Example: 20 days retention time instead of 100 days retention time
leads to 20% tank volume, 20% pipe length
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Solution
Batch Hydrolysis• 60°C Temperature• 40 – 50 kg VS/m³ loading rate (Mixers!)• Batch process: PROCESS CONTROL• 100% Hydrolysis Gas is used
Hydrolysis gas can be burned in every biogas CHP
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Solution
What about existing
biogas plants?
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Solution
REPOWERING
with
Batch Hydrolysis
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© Snow Leopard Projects GmbH
Repowering
Hydrolysis 1
Hydrolysis 2
Digester
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© Snow Leopard Projects GmbH
Advantages
Batch-Hydrolysis
Higher biogas yield / to input
Cheaper and more available fibrous raw materials digestible
High-energy raw materials digestible (Slaughterhouse waste)
Without impairing the biology
Seasonally available raw materials digestible (fruit waste)
Independence of world prices (expensive raw materials)
Higher flexibility (raw materials and feeding)
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© Snow Leopard Projects GmbH
A quick word on
Continous no process control
50% of material is not hydrolysed
Open and/or continous hydrolysis
Open High methane slip (after 1 year methane levels of up
to 30% in the hydrolysis gas!)
Loss of biogas Greenhouse gas methane (21 times higher than CO2!)
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Fertilizer Quality after 2-stage Digestion
• Nutrients are conserved in fertilizer
• Fertilizer contains only what is being fed
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More than 20 years
experience in biogas
More than 12 years experience with Straw as feedstock
SNOW LEOPARD PROJECTS GMBH (SLP)
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© Snow Leopard Projects GmbH
More than 20 years experience
Founded (2011) from Rottaler Modell (since 1994)
Biogas Entrepreneur since 1994
Managing Directors – Katharina Danner and Walter Danner
Development, planning and construction of
50 biogas plants in 13 countries in
Germany, Europe, Africa, Asia and South America
Biogas Management School
SNOW LEOPARD PROJECTS GMBH (SLP)
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Thailand
RwandaKenya
Malaysia
India
Germany
TanzaniaZanzibar
Maldives
Chile
Peru
Italy
UK
Ivory Coast
Croatia
China
Acting Worldwide
Development, planning and construction of
50 biogas plants / 13 countries
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International Experience
from 10 kW
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International Experience
to 2.8 MW (2,800 kW)
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We know, how to
build & operate
biogas plants worldwide!
SLP Statement
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Do YOU haveany questions?
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© Snow Leopard Projects GmbH
Snow Leopard Projects GmbH
Marktplatz 2394419 Reisbach
Tel.: +49 (0) 8734 / 93977-0Fax: +49 (0) 8734 / 93977-20
Mail: [email protected]
Contact