Flotech / Greenlane Company Overview

Flotech / Greenlane Company Overview

Flotech The Flotech Group founders started a business in 1983 to provide machinery installation services to the then burgeoning Compressed Natural Gas (CNG) industry in New Zealand. The organization operates internationally, offering solutions for: Industrial Heat Exchange Gas Purification, Drying and Conditioning Gas Compression Technical Support, Field Services and Spare Parts

Greenlane Biogas Greenlane Biogas is known as the global leader in biogas upgrading solutions. Our team has been developing biogas upgrading projects for more than 20 years. Development and implementation of market leading biogas upgrading technology is the major driver for the Flotech Group. Biomethane CNG Station - Sweden

Engineering professionals Greenlane Biogas has a unique vertically integrated technology, design and manufacture with supporting installation and commissioning services. Our clients are serviced by a worldwide AfterCare team. Permanent staff include: Process engineers Instrumentation and electrical (E&I) engineers Mechanical, pressure vessel and structural engineers Rotating equipment specialists Skilled, experienced craftspeople in our fabrication and assembly shops Experienced managers and supervisors Quality assurance professionals Flotech FPSO Project - Singapore

Biogas/ Landfill Gas Upgrading

Biogas Upgrading Biogas is produced by the anaerobic digestion of organic matter such as manure, sewage sludge, industrial waste, the organic fractions of household waste, etc Biogas can be upgraded to be a substitute for natural gas The typical gas composition of biogas and biomethane are as follows: Biogas CH 4 : ~60% CO 2 : ~39% N 2 +O 2 : <1% H 2 S: 50-5000 ppm H 2 O: Saturated Siloxanes: Trace Biomethane CH 4 : >96% CO 2 : ~1% O 2 : <0.4% Total inerts: <4% H 2 S: <1 ppm H 2 O: <1 ppm Siloxanes: <1 ppm

How Water Scrubbing Works The raw biogas is compressed, then fed to a scrubbing vessel where it is contacted with water. CO2, H2S, siloxanes and other trace contaminants are preferentially absorbed by the water. Absorbed methane is flashed off, in a vessel at a lower pressure and recovered by returning it to the start of the process. Product gas is further purified by a proprietary TSA, before being analyzed and delivered to the customer.

Technology Comparison Process Benefits Disadvantages Physical Solvent (other than water) Physical Membrane (high pressure process) PSA / VSA (pressure swing adsorption or molecular sieve) Water Scrubbing (with PSA/TSA purifier) 1. High absorption rate 2. High CH4 yields possible 3. Can deliver biomethane at low pressure 1. Low capital cost 2. Simple plant 3. Experience upgrading LFG 1. Can remove some inert gases, often with an additional process module 2. Low efficiency version cost effective on small scale 1. Excellent safety; proven performance 2. Reliable, simple and easy to maintain 3. Low capital and operating costs 4. Siloxanes effectively removed 1.Safety solvent is dangerous to handle 2. Complex process difficult control system 3. Prohibitive capital costs for new equipment 4. Biogas / LFG contaminants cause foaming 1. Low biomethane purity 2. High energy consumption 3. Membranes foul and require replacement 1.Media becomes fouled and needs replacement 2.Process difficult to control problems maintaining high CH 4 recovery 3.Bed fluidization causes dusting of media 4.Upstream H 2 S removal required 1. Practical capacity limit of ~2500 Nm3/h 2. Does not remove inerts (e.g. O 2 and N 2 )

Flotech Water Scrubbing Technology in Focus Water used as the scrubbing agent - Water scrubbing process upgrades raw biogas to vehicle fuel or pipeline standards efficiently, and with less impact on the environment Biomethane quality exceeds recognized international vehicle fuel standards and natural gas quality specifications. Hydrogen Sulphide - Flotech s innovative, patented polishing process is proven to reduce biomethane H2S carryover to less than 1 ppm in the biomethane. Siloxanes -Flotech s system removes siloxanes to the levels required for reliable use for internal combustion engines Track Record - Flotech has the longest and best track record in the industry

High Availability Biomethane Systems Greenlane biomethane plants have the highest availability in the market. Twenty years of experience and seven generations of design have translated into a set of standard systems with no surprises. Issues around biogas liquids handling, contaminant fouling, biogas composition variations, etc., have been solved. Repeating proven designs with reliable components controlled by verified software is our recipe for eliminating operational risk. Remote monitoring and management ensure plants perform as expected. Greenlane Totara Front End

Key Elements of System Support Site Assistance Installation Support Capable Commissioning Personnel Performance Validation Operator Training Remote Management 24/7 Data Collection and Trending 24/7 Phone Support Maintenance Packages -For 6 and 12 month service Callout Support with <48 hr Guaranteed Onsite Response Times Greenlane Totara Scrubber Vessel Installation Flotech AfterCare Remote Monitoring

Greeenlane Products Model Name Nominal Capacity Raw Gas Capacity Range Estimated Plot Dimensions Estimated Weight (Tonnes) Nm3/h SCFM* Nm3/h SCFM* Length x Width Shipping Operating Manuka 80 50 0-80 0-50 1 x std. 20' container 7 8 Manuka+ 130 80 0-130 0-80 1 x std. 20' container 7.5 8.5 Kanuka 300 185 100-300 60-185 1 x std. 20' container 9 11 Rimu 800 500 250-800 155-500 1 x std. 40' container + towers 18 22 Matai 1200 745 400-1200 250-745 1 x std. 40' container + towers 32 38 Totara 2000 1245 650-2000 405-1245 1 x std. 40' container + towers 40 48 Totara+ 2500 1555 1000-2500 620-1555 12.2m (40') x 6.9m (22.5') + towers and balance of plant 37 45

International Installations

Greenlane Biogas References 15

Abbotsford, BC First ADG to biomethane project in Canada Installed June 2010 with 800 Nm 3 /hr capacity Digester feedstocks include dairy, hog, poultry, vegetable waste, along with some FOG and DAF Biomethane fed to FortisBC (Terasen) grid, with biomethane quality measurement by Flotech and FortisBC Catalyst Greenlane Rimu Fully Installed The overall system is fully automated with a remote monitoring package to minimize the time requirement for on-site attention Catalyst Site August 2010

Flint, Michigan Greenlane s first Kanuka installation in North America Biogas is generated from the City of Flint s waterwater treatment plant (WWTP) The system capacity is 300 Nm 3 /hr and the biomethane is for vehicle fuel and pipeline injection Greenlane s client is Swedish Biogas International, a company we have partnered with for many biogas upgrading projects Greenlane Kanuka Biogas Upgrading Plant Flint, Michigan

Hamilton, Ont. First waterwater treatment plant (WWTP) biogas to biomethane project in Canada 10,000 Nm 3 /day biogas flow from the Woodward WWTP Being installed and commissioned this month Union Gas is the gas utility accepting the biomethane. City of Hamilton, Ontario Rimu System Installation This installation will become a key reference for Ontario s proposed biomethane program. Greenlane Biogas Upgrading System Hamilton, Ontario

Our Philosophy Flotech is committed to continuing to lead the biogas upgrading market. Our first focus is ensuring biomethane quality, so that the biomethane produced is fully interchangeable with natural gas for either vehicle or natural gas pipeline applications Secondly, we maximize the value of the biogas resource, by providing 98%+ CH 4 yield with the highest plant availabilities in the market. Thirdly, we have standardized our system offering to six capacities and leveraged our global supply chain to minimize capital costs while maintaining market leading quality. Finally, our systems have been designed to minimize operating costs, including power consumption, maintenance costs, the supervision requirement for operators, and total plant consumables Greenlane MANUKA - Motala, Sweden

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