2. Agenda
1 Biomethane Incentives
2 Membrane Technology for Gas Upgrading
3 Case Study: Gas Upgrading
4 Membrane Technology and Anaerobic Digestion Integration
5 US Application
6 About Eisenmann
7 Conclusions and Questions
2
3. Agenda
1 Biomethane Incentives
2 Membrane Technology for Gas Upgrading
3 Case Study: Gas Upgrading
4 Membrane Technology and Anaerobic Digestion Integration
5 US Application
6 About Eisenmann
7 Conclusions and Questions
3
4. Drivers
Most biogas plants generate electricity and heat with a CHP
The thermal energy cannot always be used close by
Incentives to use biogas as biomethane or CNG for transportation fuel
More than 250,000 natural gas vehicles in the US
(source: GE)
12-15% public transit buses in US
(source: CNG Now)
A natural gas powered bus can displace 1,400 gallons of
diesel fuel a year
(source: CNG Now)
Natural gas vehicles reduce greenhouse gas emissions
between 20-29%
(source: Natural Gas Vehicle Association)
4
5. Advantages of Biomethane
Decentralized production
Independent, flexible and storable energy source
Efficient use according to requirements
Storage capability for when demand is higher
Offsets non-renewable sources
(coal, oil, fossil fuel derived natural gas)
Production creates US jobs and benefits local economies
5
6. Agenda
1 Biomethane Incentives
2 Membrane Technology for Gas Upgrading
3 Case Study: Gas Upgrading
4 Membrane Technology and Anaerobic Digestion Integration
5 US Application
6 About Eisenmann
7 Conclusions and Questions
6
8. Flow diagram
biogas cooling desulfurization compressor
and drying
temperature
particle filter control filter
control
membrane membrane biomethane
stage I stage II > 98% CH4
biogas production
pre-treatment membrane offgas CO2
compression stage III < 0.5% CH4
purification
gas separation purified gas
offgas treatment
0.0% CH4
8
9. Advantages of Upgrading with Membrane Technology
Biogas upgrading with selective and permeable
membranes offers advantages over other technologies
Minimized gas recirculation rates
Lower operating costs
Low capital expenditure
Compact modular design
Rapid system start-up
Easier system control
Low methane leakage
High energy efficiency
No need for additional chemicals or water
Injection into the natural gas grid without
further compression
9
10. Agenda
1 Biomethane Incentives
2 Membrane Technology for Gas Upgrading
3 Case Study: Gas Upgrading
4 Membrane Technology and Anaerobic Digestion Integration
5 US Application
6 About Eisenmann
7 Conclusions and Questions
10
11. Case Study: Membrane Technology
Project: Biogas Plant in Switzerland
Limited success with previous biogas upgrading technology
Installed Membrane Upgrading System in 2012
Gas is used to fuel city buses
11
13. Facts and Figures
Biogas plant: Volume flow biogas: 123 CFM
Volume flow biomethane: 73 CFM
high solids digestion of biowaste Concentration biomethane: > 96 vol.-%
Utilization:
grid injection and fuel
for public transportation fleet
Membrane room Biogas upgrading plant
13
14. Measurement Data
Successful test operation in December 2012
Grid injection since January 26, 2013
concentration [vol.-%]
concentration [vol.-
concentration biomethane [vol.-%]
concentration methane [vol.-%]
concentration CO2 [vol.-%]
concentration CO2 [vol.-%]
%]
Dec 3 Dec 4 Dec 5 Dec 6 Dec 7 Dec 3 Dec 4 Dec 5 Dec 6 Dec 7
2012 2012
Biomethane to grid injection: methane > 96 % Offgas to atmosphere: methane leakage < 1.0 %
14
15. Operating Data
Specific energy consumption without peripherals
Compressor duty
0.20 kWh/Nm³ biogas
Specific energy consumption with peripherals
Compressor duty
Blower, cooling and air conditioning
0.29 kWh/Nm³ biogas
Operation
Fast start-up and shut-down
Good adjustability
No heat requirement
No operational supplements
Easy handling
15
16. Agenda
1 Biomethane Incentives
2 Membrane Technology for Gas Upgrading
3 Case Study: Gas Upgrading
4 Membrane Technology and Anaerobic Digestion Integration
5 US Application
6 About Eisenmann
7 Conclusions and Questions
16
17. Anaerobic Digestion and Biogas Upgrading
Total process chain from a single source.
Plug flow digester CHP / biogas upgrading
17
19. Pre-treatment
Requirements for grid injection concerning pollutant gas components and dew point reached.
Heat exchangers Blower Activated carbon filters
Cooling, condensation Pre-compression, drying Fine desulfurization
T = 41°F p = 17.4 PSI, T = 86°F H2S < 10 ppm
19
20. Compression
Ensuring the required pressure difference for gas separation.
Oil injected screw compressor
Stable operation
No pulsation
Waste heat from engine used
for container air conditioning
Internal heat recovery
Oil deposition
Heat utilization for temperature control
p = 232 PSI and T = 131°F Detail oil circulation Construction compressor
20
21. Purification
Fine purification in order to ensure a long lifetime of the membranes.
Heat exchangers Control filter Particle filter
Temperature control Activated carbon for fine cleaning ISO-filter for fine particulate matter
T = 77 - 86°F Pollutant gas, oil Particles, aerosols (ISO 8573-1)
21
22. Gas separation with highly selective membranes
Small recirculation rate minimizing compressor duty
High selectivity facilitating a methane yield greater than 99.5%.
compressor
membrane membrane biomethane
stage I stage II > 98% CH4
vacuum
membrane offgas CO2
stage III < 0.5% CH4
Two-staged upgrading to biomethane Third membrane stage to minimize methane leak
22
23. Process Control and Visualization
Automated operation and process control
Walk-in switch cabinet
Process control
Siemens S7
Remote access
Monitoring and operation
through internet access
Failure report notification via
mobile phone
Visualization
Touch-screen
Biogas upgrading visualization
23
24. Agenda
1 Biomethane Incentives
2 Membrane Technology for Gas Upgrading
3 Case Study: Gas Upgrading
4 Membrane Technology and Anaerobic Digestion Integration
5 US Application
6 About Eisenmann
7 Conclusions and Questions
24
25. Business Study: Waste Collection Vehicles
Fuel costs for waste collection fleets are negatively impacted by
Low miles per gallon
Long service routes
Increasing age of the fleets
Current Situation – 179,000 waste collection vehicles in America
91% are diesel-fuel
40% are over 10 years old
Average 25,000 miles driven annually
Fuel Costs
Average 3 miles to the gallon
8,600 gallons of fuel use on average per truck per year
For a fleet of 100 trucks, the average annual fuel costs would be $3.44 Million
(assuming $4/gallon cost of diesel)
25
26. Business Study: Waste Collection Vehicles
Benefits of switching a fleet to natural gas
Cleaner alternative fuel
Significant cost savings
At $2/gallon of CNG, on 100 truck fleet: daily savings is $4,800, annual savings is $1.75 M
ROI: Just over a year with annual fuel savings
(based on average cost of converting diesel engines)
Cleaner, less noisy truck
Non-corrosive, non-carcinogenic fuel is not a threat to soil, surface water or ground water
Up to 90% less air pollution than diesel fuel
26
27. Business Study: Waste Collection Vehicles
Example: Waste Management displaces 8 million gallons of petroleum and eliminates over
45,000 metric tons of greenhouse gas emissions in just one year by operating 1,400 natural
gas trucks.
27
28. Business Study: Waste Collection Vehicles
Assumptions: Diesel - $4 / gallon
CNG - $2 / gallon
Feed Rate of Biogas System 100 tons/day @ 350 days/yr
Methane Production 540,933 SCF (CH4)/day
Methane (HHV) 1,000 BTU/SCF
Upgrading Slip (Loss) 1%
Energy potential of upgraded RNG 535 MM BTU/day
Equivalent Diesel Production 3938 DGE/day
Trucks Fueled by System 164 Trucks per day
Potential Fuel Savings (240 days collection) $ 2,873,000.-/year
28
29. Agenda
1 Biomethane Incentives
2 Membrane Technology for Gas Upgrading
3 Case Study: Gas Upgrading
4 Membrane Technology and Anaerobic Digestion Integration
5 US Application
6 About Eisenmann
7 Conclusions and Questions
29
30. Leading International Supplier
Environmental technology
General finishing
Material handling & conveyor systems
Process and high-temperature technology
1 30
31. Offerings
Green, sustainable engineering
Top quality and reliability
Modular and custom solutions
Detailed system and process solutions
Dedicated industrial service team
Worldwide reference installations
Global services
2 31
32. Facts and Figures
Established 1951; Stuttgart, Germany
12 locations worldwide
US location since late 70‘s; Crystal Lake, IL
3,600 employees
More than 90 biogas facilities
Founding
Member
3 32
33. Eisenmann Biogas
Since 2003 Since 2008 Since 2012
Agricultural biogas plants Biowaste biogas plants Biogas upgrading plants
Plants in operation: Plants in operation: Plants in operation:
Germany, 55 plants Sweden, 1 plant Switzerland, 1 plant
Italy, 22 plants Switzerland, 3 plants
Czech Republic, 1 plant
33
34. Agenda
1 Biomethane Incentives
2 Membrane Technology for Gas Upgrading
3 Case Study: Gas Upgrading
4 Membrane Technology and Anaerobic Digestion Integration
5 US Application
6 About Eisenmann
7 Conclusions and Questions
34
35. Conclusions
There is a rising demand for biomethane to be used as CNG, especially as transportation fuel
The use of biomethane has many advantages including being a lower cost and clean,
alternative fuel
Biomethane can be upgraded to pipeline grade natural gas by using highly selective and
permeable membranes
By using membrane technology,
there is less methane slip
35
36. Questions
Green Engineering
Sustainability is in Our System
36
37. New Website
Introducing Eisenmann’s New Website
www.eisenmann.us.com/biomass13
Available for download:
Today’s presentation
CNG to Fuel your Fleet
(white paper)
Sustainability in an Urban Environment
(white paper)
37
38. Contact
Kyle Goehring
Regional Sales Manager
Phone: (815) 900-1443
E-Mail: kyle.goehring@eisenmann.com
150 East Dartmoor Dr. Crystal Lake, IL 60014
www.eisenmann.us.com
Follow Us:
Eisenmann Corporation Eisenmann Corporation @EISENMANNUSA
38
Editor's Notes
Thank Valentino for the introduction and BBI for the great forum. Touch on previous speakers upgrading technology before beginning.
(Insert Description of Format)
There are a number of incentives for renewable energy projects across technologies and geographies. Biomethane, with its capabilities and advantages over other forms of fuel and/or energy, is entirely renewable when derived from biogas and a low carbon alternative fuel.
The US and European markets are very different. In Sweden more than half of the natural gas vehicles are running on biomethane. In fact, the word biogas in Sweden is associated with a vehicle fuel due to this prevalence. Additionally, Germany and Austria have established biomethane vehicle fuel target goals. There are several factors why the markets for biomethane are so different across the world. 1.) The physical size of the US makes for infrastructure challenges 2.) The availability of fossil fuels in the US lead to lower costs per unit of energy which in turn make the financing of biomethane projects more difficult as signing a long-term off-take agreement with a utility or fleet is difficult or impossible 3.) European countries are more like US states than the US in total. An overarching structure for upgraded biogas across the US is problematic due to differing state laws and regulations 4.) Population density – outside of the major cities, the US has very few people over many square miles. The US is the 142 nd ranked country in population density while many EU countries are ranked much higher with 8 in the top 50, including the Netherlands, Belgium, the UK, Germany, Italy and Switzerland.
A vast network of pipelines in the US allows for convenient distribution of upgraded biogas while offering the advantage of lower distribution losses. Electricity grid is an aging, deteriorating system with an increasing costs required to maintain. Power lines and systems are subject or exposed to natural phenomena which increases risk and likelihood of power outages (i.e. Hurricane Sandy) There are currently 400 underground gas storage fields in the US (source: Forbes)
Gas permeation with selective membranes from high-performance polymers Design membrane module Biogas: CH 4 + CO 2 (feed) Biomethane: CH 4 (retentate) Offgas: CO 2 (permeate) Hollow fiber membranes Separation of CO 2 and CH 4 through different gas permeation velocities CH 4 slow CO 2 fast
Speak slowly through the stages!
While these are all advantages, lets focus on two primarily: methane leakage or slippage, and lower operating as well as initial costs. As the rate of return and return on investment are primary drivers in initial project approval, the lower cost of a membrane system can be THE difference as to whether a project is financeable. With the purpose of a biomethane project being production of biomethane, a system which offers less slippage or methane loss during the upgrading process holds obvious benefit: more of the desired output!
If I were in the audience right now, I would be thinking that all of this sounds great in theory but I need to learn about an actual application or system. Let’s explore one such facility.
(Note: What was the technology? This will likely be a question and I need the answer!)
Fueling station for buses is off-site so biomethane is injected. We could reach a higher % of CH4 but it is not necessary with this location or under the regulations As evidenced with the picture on your right, the membranes are within a containerized unit
(Go through the graphs as it may be difficult to see in the room) We chose this case study as it is recent and relevant
Even with energy consumption not directly related to the biomethane conditioning, the energy required is offset by the low rate of slippage associated with the membrane technology. Once again numerous advantages associated with this technology. One we haven’t discussed yet is that with the membrane, one does not need a source of heat for treatment of solution or material. The heat requirement associated with other upgrading technologies leads a facility or system to invest in peripheral equipment such as a boiler and divert a % of biogas to generate said heat.
Standard equipment and technologies shown here. Note: the greater sulfur content in the biogas, the more activated carbon or material needed to absorb this gas is required.
I have discussed and highlighted numerous advantages of the membrane technology. The modularity of the systems can serve benefit both in purification methane as well as treating increased volumes of biogas.
Eisenmann as an organization prides itself upon service and reliability. With this as a core value, our biogas upgrading technology utilizes the latest in remote access technology keeping Eisenmann’s service team and the owner/operator in contact with the system.
Environmental Technology Air and water treatment Anaerobic Digestion We were commissioned by the US Gov’t. to build munitions disposal facility which combines multiple technologies of Eisenmann’s including water treatment, high temperature kilns, exhaust air treatment and others. A very unique project which sets Eisenmann further apart from biogas companies. General Finishing Painting auto bodies, wood, plastics Material Handling Moving autobodies and parts through factories Pallet distribution systems Process and High Temp High temp kilns Ceramic firing lines
This global network and rich history affords Eisenmann opportunities and capabilities few companies, if any, can match. A true solution based company, we will optimize or configure a technology to meet the exact need or desire for a client. Outstanding customer support with a 100% customer satisfaction rating over the past 9 years.
Established in 1951 outside of Stuttgart Germany. Since, we have grown to 12 locations globally. Our US Office was one of the first locations outside of Germany and has been successfully completing projects for over 35 years. We are in Crystal Lake IL in the greater Chicago area. As I like to say it, we are where Chicago meets cornfields. We have 3,600 employees with the vast majority of engineers. To date, we have successfully realized over 90 biogas facilities and broke ground on our first US facility in the greater Chicago area in 4 th Q 2012. And we are one of the founding members of the American Biogas Council who’s goals are promoting environmental stewardship, promoting greenhouse gas reduction, and policy development
Eisenmann installed over 2,500 environmental technology installations, including water treatment, exhaust air purification and waste treatment across the globe. Biogas technology only recently in our company history become a focus and is just a small part of the Eisenmann product portfolio. A company as diverse and deep as Eisenmann has begun allocating more resources toward the biogas industry which lead to our recent development and deployment of the membrane technology. Eisenmann’s primary digester technology is the horizontal plug flow technology. My colleague, John McDowell, will be presenting on this tomorrow afternoon and I strongly encourage you to attend!