Biogas Upgrading Plants.

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1 Biogas Upgrading Plants

2 Xebec Biogas Solutions From Biogas to Biomethane Biogas is a mixture of CH 4, CO 2, and other trace gases. It is produced from anaerobic digestion of food waste, animal manure, landfills, and sewage. After pre-treatment (H 2 S, VOCs, Siloxanes, Ammonia and H 2 O) and purification steps, biogas is upgraded to biomethane, a renewable substitute for natural gas. How the Process Works Organic Waste Wastewater Treatment Plant Landfill RAW BIOGAS Gas Conditioning PSA upgrading Plant Membrane upgrading Plant BIOMeTHANe Heating & electricity CHP Natural Gas Grid LNG CNG Renewable Hydrogen

3 Fast Cycle PSA Technology Xebec s compact, Fast Cycle Pressure Swing Adsorption (PSA) is designed to upgrade biogas feed streams containing CO2, H2O, H2S, and high amounts of N2 and O2 (total molar content of 0% to 30%). Xebec s proprietary PSA technology is highly efficient, with proven recovery rates up to 96%. Our Point of Difference High N2 and O2 removal rates The adsorbents used in Xebec s PSA system have high kinetic selectivity toward N2 and O2 Apart from high rates of CO2 removal, up to 95% of the inlet N2 and O2 can be removed from CH4 in the adsorption process Gas Molecules Adsorption Process Biomethane CH4 O2 / N2 CO2 H2O / H2S Adsorption Tower Best in class performance Recovery rates up to 96% Biomethane purity up to 99.8% ease of operation Biogas CH4 / CO2 / N2 / O2 / H2O / H2S Off Gas CO2 / N2 / O2 / H2O / H2S Xebec PSA Rotary Valve Our single proprietary Rotary Valve can replace up to 36 solenoid valves which are used in conventional PSA systems Product purity and flowrate can be easily controlled by changing the rotary valve speed The PSA turndown rate can be turned to 40% of full flow No chemicals are required Reliability Xebec s proprietary Rotary Valves only need servicing at 5-year intervals, resulting in lower maintenance costs Our proven PSA availability is 99.5% Xebec Installation Scalability Xebec s Advanced Process Cycle delivers high quality gas which is in continuous production with minimal product fluctuations Lower cost. Smaller footprint Xebec s compact Fast Cycle PSA allows the adsorber vessels to be significantly smaller than conventional PSA systems, and it reduces installation cost

4 Membrane Technology Xebec s high-performance polymer membranes are suitable for treating biogas streams which mainly contain CH 4 and CO 2. Xebec membranes selectively separate CH 4 from CO 2 and other trace gases and upgrade biogas to pure biomethane with recoveries as high as 99.8%. Our Point of Difference Best in class performance Recovery rates up to 99.8% CH 4 Biomethane purity up to 99% ease of operation No moving parts High turndown rates No chemicals required Xebec s membrane system is modular and easily scalable Hollow Fiber Membrane CO 2 / O 2 / H 2 O / H 2 S Biomethane [CH 4 ] up to 99% Green energy Due to the very low CH 4 concentration in the exhaust stream, no post-treatment is required when releasing the stream into the environment Biogas Reliability With the right pre-treatment design, membranes last for many years Lower cost Xebec membranes offer high capacity and selectivity when separating CH 4 from CO 2 and other gases The recycle flow rates are relatively smaller than that of our competitors, resulting in energy savings in compression Images courtesy of Evonik 2015 Evonik Industries

5 Turnkey Project Management Operational Support Xebec offers its customers a total biogas upgrading solution from plant design to manufacturing, installation, commissioning and start up. Xebec Service and Aftermarket Teams are focused on delivering maximum plant availability. Single point customer contact Plant design, purchasing, fabrication, and delivery Process safety assistance Installation supervision, commissioning, site engineering coordination, and start up Remote plant performance monitoring for reliable and safe operation Spare parts inventory Service, maintenance and support available Gas analysis and sampling to verify plant performance Operator training and certification

6 Xebec Offices Committed to first class customer service. Xebec stands behind the service, spare parts and technical support needed to ensure the most complete and effective solution for every installation throughout the world. united STATeS XEBEC Adsorption USA, Inc Katy Freeway, Suite 320 Houston, TX Phone: (832) Toll Free: 1 (866) Fax: (832) sales@xebecinc.com CANADA XEBEC Adsorption, Inc. 730 Boul. Industriel Blainville, Quebec J7C 3V4 Phone: (450) Toll Free: 1 (877) Fax: (450) sales@xebecinc.com CHINA XEBEC Adsorption (Shanghai), Co. Ltd. No. 92, Block 5, East Jiangtian Road Songjiang Economic Zone, Shanghai Phone: Fax: chinasales@xebecinc.com