Turnkey Landfill Gas Processing Solutions

Transcription

1 1 Turnkey Landfill Gas Processing Solutions BIOFerm Energy Systems Thursday, October 05, 2017

2 2 BIOFerm Energy Systems Background Headquarters Madison, WI U.S.A. Established 2007 Turnkey Services Gas upgrading Anaerobic digestion Complete engineering and consulting services Experience ~90 Carbotech PSA gas upgrading plants (>900 N 2, H 2, O 2 ) >500 anaerobic digestion projects Guarantee Complete Viessmann performance guarantee/warranty Backing Viessmann year-old, multi-billion dollar company

3 3 BIOFerm Energy Systems Cross Sector Gas Processing & Biogas Solutions Landfills Wastewater Treatment Plants Municipalities Food Processors Agricultural

4 4 Gas Upgrading Carbotech PSA Benefits Turnkey Includes all upgrading components Efficient CH 4 yields >99%, low operating costs High uptime/machine redundancy Simple Pre- fabricated/assembled/tested Requires only slab foundation No buildings necessary Capabilities Handles high-n 2 gas Meets stringent pipeline requirements Reduces media cost with integrated desulphurization Handles sulfur load with active carbon polishing beds Removes VOCs with TSA system, reducing CH 4 losses

5 5 BIOFerm Energy Systems Warranty & Performance Guarantee Equipment warranty months on installed components/systems Maintenance can be covered under O&M contract Performance guarantee Over entire biogas system Any performance below agreed percent is reimbursed

6 6 Biogas and Biogas Upgrading Where does it comes from? What is it? What can I do with it? In an anaerobic environment with the presence of bacteria, organic matter will undergo a Physical, Chemical and Biological Process With the right temperature, bacterial Anaerobic Digestion will take place while converting the complex organic matter into much simpler gaseous compounds. Anaerobic digestion generates Biogas with a high fraction of CH 4 and CO 2 and a small portion of some other gases (NH 3, H 2, H 2 S, etc.). Cleaned and upgraded biogas, called Renewable Natural Gas (RNG), is achieved through the removal of CO 2 and other impurities in the Biogas. Gas Grid Injection CHP Cogeneration Conditioned biomethane is ready-to-use: CNG-Vehicle Fuel

7 7 Landfill Biogas to RNG Drivers for Upgrading Incentives: New legislation and environmental goals (i.e. California s AB 32) requiring mandatory landfill gas collection and destruction High dollar RINs generated from upgraded landfill gas to RNG transportation fuel Increased EPA requirement to purchase RNG RINs

8 8 PSA Gas Upgrading Typical Gas Qualities & Gas Regulations Component Typical Biogas Biomethane from PSA Example Pipeline Quality Methane CH Vol.-% Vol.-% >97.3 Vol.-% Hydrogen H 2 < 100 ppm < 200 ppm n.a. Carbon Dioxide CO Vol.-% Vol.-% < 2.0 Vol.-% Nitrogen N Vol.-% Vol.-% n.a. Oxygen O Vol.-% Vol.-% <0.2 Vol.-% Trace Elements Hydrogen Sulphide H 2 S < 500 ppmv gr/100cf < 0.25 gr/100cf Ammonia NH 3 < 300 ppmv < 1 ppmv Varies Hydrocarbons C x H y < 100 ppmv < 10 ppmv n.a. Water H 2 O Saturated Dew-point 1 bar Dew-point injection pressure Energy Characteristics Calorific Value H S,N BTU/ft BTU/ft 3 > 967 BTU/ft 3

9 9 BIOFerm Gas Upgrading Solutions Special Gas Streams Considerations Unique Raw Gas Considerations: High N 2 or air content (>5% N 2 ) Typical of Landfills High H 2 S concentrations (400+ ppm) Manure Digesters WWTP/Landfills High VOC/Siloxanes Landfills

10 10 Biogas Biomethane Environmental Regulations Biogas and Biogas Upgrading Process Compression & Cooling H 2 S Removal Methane enrichment Water Air Heat Gas Drying Off Gas treatment prior disposal Water Scrubber 8-10 bar Scrubber Regen. Tower Heat Gas Drier Biomethane H 2 S Scrubber Off-Gas Cleaning System Chemical Scrubber bar Activated Carbon Scrubber Regen. Tower Gas Drier Biomethane Off-Gas Cleaning System PSA 3-5 bar Activated Carbon PSA Biomethane ZETECH 4 Off-Gas Cleaning System Membrane 8-10 bar Activated Carbon 2-Step Membrane Biomethane Off-Gas Cleaning System

11 11 Biogas Upgrading Carbotech PSA (Pressure Swing Adsorption) Process Features: Completely integrated system Power Consumption: kwh/m³ Biogas Methane Recovery: > % Product Gas Quality: 90-99% CH 4 Pressure: 1 10 bar(g)

12 12 Gas Upgrading Carbotech PSA Upgrading Steps 1. Compress raw biogas 2. Remove condensed water vapor through cooling system 3. Remove trace components with activated carbon 4. Channel conditioned biogas through PSA adsorbers filled with carbon molecular sieves designed for adsorption 5. Remove CO 2, H 2 O, H 2 S, NH 3, siloxanes, odors and parts of O 2 and N 2 via adsorption in PSA 6. Produce RNG, a highly-enriched renewable natural gas, is produced

13 13 Carbotech Gas Upgrading Systems PSA 3D Drawing BUP2000 RNG Buffer Tank Chiller H 2 S removal LFG Inlet Separator Compressor Control Room Radiator Vacuum Pumps 40 Double Container 6-bed PSA

14 Carbotech Gas Upgrading Systems PSA Systems BIOFerm Energy Systems 14

15 Carbotech Gas Upgrading Systems Inside Upgrading Container BIOFerm Energy Systems 15

16 Carbotech Gas Upgrading Systems Workshop Pre-Assembly BIOFerm Energy Systems 16

17 Carbotech Gas Upgrading Systems Site Installation BIOFerm Energy Systems 17

18 18 BIOFerm Gas Upgrading Solutions Carbotech PSA Facility Sizing Plant Type Raw Gas Capacity [Nm 3 /h] (Raw Gas Capacity) [scfm] Container Compressors Vacuum Pumps Average Power 40 % CO 2 BUP x kw BUP x kw BUP x kw BUP x kw BUP x kw BUP x kw BUP x kw Custom Cont/Skid kw/nm³

19 19 BIOFerm Gas Upgrading Solutions Upgrade Biogas to Grid Entry Biogas Production & Upgrading biogas BUP Biomethane Conditioning & Grid Injection Unit Caloric Value Adjustment Unit Calibrated Quality Measurement Pressure Control Safety Valve LPG / Air Flow PGC PCV THT SAV Calibrated flow measurement Gas Booster Odorizing Biomethane to the Grid Gas Grid

20 20 Value of Energy from Biogas Electricity Generation vs. Renewable Natural Gas Parameter Biogas to Electricity Biogas to RNG (CNG) Raw Biogas Flow 1000 scfm 1000 scfm Methane Content 55% 55% Methane Flow 550 scfm 550 scfm Conversion to End Product 38% 96% End Product Energy Content 3,710 kwh/h (304 MMBTU/day) 6,740 GGE (768 MMBTU/day) Product Value $0.12/kWh ($35.17/MMBTU) $2.10/GGE $18.42/MMBTU Projected Product Revenue $10,684/day $14,146/day Assumes 38% electrical efficiency on CHP Assumes 96% methane recovery on upgrading Assumes previous PPA electricity rates offered in WI Assumes CNG pricing only no RINs

21 21 Value of Energy from Biogas Electricity Generation vs. Renewable Natural Gas Parameter Biogas to Electricity Biogas to RNG Raw Biogas Flow 1000 scfm 1000 scfm Methane Content 55% 55% Methane Flow 550 scfm 550 scfm Conversion to End Product 38% 96% End Product Energy Content 3,710 kwh/h (304 MMBTU/day) 768 MMBTU/day Product Value $0.035/kWh ($10.25/MMBTU) $20.88/MMBTU Projected Product Revenue $3,118/day $16,035/day Assumes 38% electrical efficiency on CHP Assumes 96% methane recovery on upgrading Assumes current offered PPA electricity rates offered in WI Assumes $10/MMBTU Contract + D5 RIN pricing on RNG sales

22 22 Case Study Carbotech PSA Gas Upgrading for Wisconsin Landfill Customer: Municipally owned landfill Input gas: High N 2 Landfill Gas Plant data: Biogas capacity: 2,500 scf/minute Production: >92% methane recovery Product gas: ~95% methane, despite high O 2 + N 2 in raw gas

23 23 Case Study Carbotech PSA Gas Upgrading for U.S. Food Processor, HPB Customer: High Plains Bioenergy (HPB)/Seaboard Foods Located in Guymon, OK U.S. Input gas: Lagoon biogas from pork waste Plant data: Biogas capacity: 1,200 scf/minute Production: 440 million scf RNG/year Product gas: ~96% methane, despite high O 2 + N 2 in raw gas

24 24 BIOFerm Energy Systems Copyright 2017 BIOFerm TM USA, Inc. Without BIOFerm TM Energy Systems prior written permission, you may not copy, modify, display, or prepare derivative works based upon the materials in this presentation. The BIOFerm TM logo, and other trademarks are registered trademarks of BIOFerm TM. Other BIOFerm TM graphics, logos, page headers, button icons, and scripts are trademarks or trade dress of BIOFerm TM. Other brand and product names mentioned herein may be registered or unregistered trademarks of their respective owners and are annotated. BIOFerm TM Energy Systems 440 Science Drive, Suite 300 Madison, WI USA