Biogas Upgrading System  Biogas is a renewable energy source and mostly produced from anaerobic digestion (AD). Biogas composition varies with the biomass digested and contains mainly methane (CH4) and carbon dioxide (CO2), as well as traces of hydrogen sulfide (H2S), ammonia (NH3), hydrogen (H2), nitrogen (N2), carbon monoxide (CO), oxygen (O2). Membrane technology as purification process is a relatively recent but very promising technology. Also, hybrid processes where membranes are combined with other processes are believed to have lower investment and operation costs compared with other processes. Product Paramenters Biogas Upgrading System Specification Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.15-0.25 Kwh/Nm³ Methane Operating Pressure: Medium or Low Pressure, 5-10 or 10-20 Bar (According to the product configuration) Environmental Benefits: Minimum Greenhouse Gas Emissions System Composition Introduction of Membrane Technology Membrane Technology For the Membrane we choose EVONIK as our partner and membrane supplier. Their membrane upgrading process with SEPURAN® Green delivers a constant high biomethane grade with more than 99% purity. In other words, almost all the methane is recovered in bio natural gas quality. Evonik has developed a biogas upgrading process that makes best use of the membranes' separation properties: Through skillful connection of SEPURAN® Green membranes it is possible to obtain methane with a purity level of up to 99% from the crude gas. Just one compressor is needed. Polymide Membrane SEPURAN® Green membranes have the highest CO2/CH4 selectivity and are therefore a superior technology for upgrading biogas. This selectivity of the membranes enables the production of high purity biomethane with superior methane recovery. This distinguishes the Evonik membranes from other membranes that are available.   BENEFITS OF SEPURAN® GREEN MEMBRANE TECHNOLOGY * Reduced operating costs * Low Investment * Easy to operate * Low space requirement and short installation times * Flexible and modular Installation * No chemicals required * No additional drying stage Typical Configurations ● Three Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 99% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Minimum Greenhouse Gas Emissions ● Two Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 97% Mode to utilize Biomethane: CNG Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Lower Greenhouse Gas Emissions ● Two Stage Membrane Process — Low Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: Gas Network Unit Energy Consumption: 0.15-0.20 Kwh/Nm³ Methane Operating Pressure: Low Pressure, 5-10 Bar Environmental Benefits: Lower Greenhouse Gas Emissions Pictures

Biogas Upgrading System  Biogas is a renewable energy source and mostly produced from anaerobic digestion (AD). Biogas composition varies with the biomass digested and contains mainly methane (CH4) and carbon dioxide (CO2), as well as traces of hydrogen sulfide (H2S), ammonia (NH3), hydrogen (H2), nitrogen (N2), carbon monoxide (CO), oxygen (O2). Membrane technology as purification process is a relatively recent but very promising technology. Also, hybrid processes where membranes are combined with other processes are believed to have lower investment and operation costs compared with other processes. Product Paramenters Biogas Upgrading System Specification Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.15-0.25 Kwh/Nm³ Methane Operating Pressure: Medium or Low Pressure, 5-10 or 10-20 Bar (According to the product configuration) Environmental Benefits: Minimum Greenhouse Gas Emissions System Composition Introduction of Membrane Technology Membrane Technology For the Membrane we choose EVONIK as our partner and membrane supplier. Their membrane upgrading process with SEPURAN® Green delivers a constant high biomethane grade with more than 99% purity. In other words, almost all the methane is recovered in bio natural gas quality. Evonik has developed a biogas upgrading process that makes best use of the membranes' separation properties: Through skillful connection of SEPURAN® Green membranes it is possible to obtain methane with a purity level of up to 99% from the crude gas. Just one compressor is needed. Polymide Membrane SEPURAN® Green membranes have the highest CO2/CH4 selectivity and are therefore a superior technology for upgrading biogas. This selectivity of the membranes enables the production of high purity biomethane with superior methane recovery. This distinguishes the Evonik membranes from other membranes that are available.   BENEFITS OF SEPURAN® GREEN MEMBRANE TECHNOLOGY * Reduced operating costs * Low Investment * Easy to operate * Low space requirement and short installation times * Flexible and modular Installation * No chemicals required * No additional drying stage Typical Configurations ● Three Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 99% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Minimum Greenhouse Gas Emissions ● Two Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 97% Mode to utilize Biomethane: CNG Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Lower Greenhouse Gas Emissions ● Two Stage Membrane Process — Low Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: Gas Network Unit Energy Consumption: 0.15-0.20 Kwh/Nm³ Methane Operating Pressure: Low Pressure, 5-10 Bar Environmental Benefits: Lower Greenhouse Gas Emissions Pictures

Biogas Upgrading System  Biogas is a renewable energy source and mostly produced from anaerobic digestion (AD). Biogas composition varies with the biomass digested and contains mainly methane (CH4) and carbon dioxide (CO2), as well as traces of hydrogen sulfide (H2S), ammonia (NH3), hydrogen (H2), nitrogen (N2), carbon monoxide (CO), oxygen (O2). Membrane technology as purification process is a relatively recent but very promising technology. Also, hybrid processes where membranes are combined with other processes are believed to have lower investment and operation costs compared with other processes. Product Paramenters Biogas Upgrading System Specification Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.15-0.25 Kwh/Nm³ Methane Operating Pressure: Medium or Low Pressure, 5-10 or 10-20 Bar (According to the product configuration) Environmental Benefits: Minimum Greenhouse Gas Emissions System Composition Introduction of Membrane Technology Membrane Technology For the Membrane we choose EVONIK as our partner and membrane supplier. Their membrane upgrading process with SEPURAN® Green delivers a constant high biomethane grade with more than 99% purity. In other words, almost all the methane is recovered in bio natural gas quality. Evonik has developed a biogas upgrading process that makes best use of the membranes' separation properties: Through skillful connection of SEPURAN® Green membranes it is possible to obtain methane with a purity level of up to 99% from the crude gas. Just one compressor is needed. Polymide Membrane SEPURAN® Green membranes have the highest CO2/CH4 selectivity and are therefore a superior technology for upgrading biogas. This selectivity of the membranes enables the production of high purity biomethane with superior methane recovery. This distinguishes the Evonik membranes from other membranes that are available.   BENEFITS OF SEPURAN® GREEN MEMBRANE TECHNOLOGY * Reduced operating costs * Low Investment * Easy to operate * Low space requirement and short installation times * Flexible and modular Installation * No chemicals required * No additional drying stage Typical Configurations ● Three Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 99% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Minimum Greenhouse Gas Emissions ● Two Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 97% Mode to utilize Biomethane: CNG Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Lower Greenhouse Gas Emissions ● Two Stage Membrane Process — Low Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: Gas Network Unit Energy Consumption: 0.15-0.20 Kwh/Nm³ Methane Operating Pressure: Low Pressure, 5-10 Bar Environmental Benefits: Lower Greenhouse Gas Emissions Pictures

Detailed Product Description Material: Glass-Fused-To-Steel Service Year: 30 Years Holiday Test: Up To 1500V Type: Bolted Steel Tank High Light: biogas purification equipment, h2s removal system Chemical desulfurization system/ H2S purification/ Plug and useWhy we need desulphurizationRemoval of H2S is often required for reasons of health, safety, environment and corrosion of equipment such as gas engines, boilers and piping. Desulphurization is also is necessary when biogas is upgraded to natural gas quality and injected in the grid.Benefits WIth YHR Chemical desulphurization Professional team Experienced in biogas industry Low investment Plug and use, no conmissioning time needed

Detailed Product Description Holiday Test: Up To 1500V Coat Thickness: 0.25-0.45mm Type: Bolted Steel Tank Material: Glass-Fused-To-Steel High Light: biogas scrubbing system, h2s removal system Biogas desulfurization system/ H2S purification/ YHR scrubberWhy we need desulphurizationRemoval of H2S is often required for reasons of health, safety, environment and corrosion of equipment such as gas engines, boilers and piping. Desulphurization is also is necessary when biogas is upgraded to natural gas quality and injected in the grid.Benefits WIth YHR Chemical desulphurization Professional team Experienced in biogas industry Low investment Plug and use, no conmissioning time needed

Biogas Upgrading System  Biogas is a renewable energy source and mostly produced from anaerobic digestion (AD). Biogas composition varies with the biomass digested and contains mainly methane (CH4) and carbon dioxide (CO2), as well as traces of hydrogen sulfide (H2S), ammonia (NH3), hydrogen (H2), nitrogen (N2), carbon monoxide (CO), oxygen (O2). Membrane technology as purification process is a relatively recent but very promising technology. Also, hybrid processes where membranes are combined with other processes are believed to have lower investment and operation costs compared with other processes. Product Paramenters Biogas Upgrading System Specification Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.15-0.25 Kwh/Nm³ Methane Operating Pressure: Medium or Low Pressure, 5-10 or 10-20 Bar (According to the product configuration) Environmental Benefits: Minimum Greenhouse Gas Emissions System Composition Introduction of Membrane Technology Membrane Technology For the Membrane we choose EVONIK as our partner and membrane supplier. Their membrane upgrading process with SEPURAN® Green delivers a constant high biomethane grade with more than 99% purity. In other words, almost all the methane is recovered in bio natural gas quality. Evonik has developed a biogas upgrading process that makes best use of the membranes' separation properties: Through skillful connection of SEPURAN® Green membranes it is possible to obtain methane with a purity level of up to 99% from the crude gas. Just one compressor is needed. Polymide Membrane SEPURAN® Green membranes have the highest CO2/CH4 selectivity and are therefore a superior technology for upgrading biogas. This selectivity of the membranes enables the production of high purity biomethane with superior methane recovery. This distinguishes the Evonik membranes from other membranes that are available.   BENEFITS OF SEPURAN® GREEN MEMBRANE TECHNOLOGY * Reduced operating costs * Low Investment * Easy to operate * Low space requirement and short installation times * Flexible and modular Installation * No chemicals required * No additional drying stage Typical Configurations ● Three Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 99% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Minimum Greenhouse Gas Emissions ● Two Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 97% Mode to utilize Biomethane: CNG Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Lower Greenhouse Gas Emissions ● Two Stage Membrane Process — Low Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: Gas Network Unit Energy Consumption: 0.15-0.20 Kwh/Nm³ Methane Operating Pressure: Low Pressure, 5-10 Bar Environmental Benefits: Lower Greenhouse Gas Emissions Pictures

Biogas Upgrading System  Biogas is a renewable energy source and mostly produced from anaerobic digestion (AD). Biogas composition varies with the biomass digested and contains mainly methane (CH4) and carbon dioxide (CO2), as well as traces of hydrogen sulfide (H2S), ammonia (NH3), hydrogen (H2), nitrogen (N2), carbon monoxide (CO), oxygen (O2). Membrane technology as purification process is a relatively recent but very promising technology. Also, hybrid processes where membranes are combined with other processes are believed to have lower investment and operation costs compared with other processes. Product Paramenters Biogas Upgrading System Specification Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.15-0.25 Kwh/Nm³ Methane Operating Pressure: Medium or Low Pressure, 5-10 or 10-20 Bar (According to the product configuration) Environmental Benefits: Minimum Greenhouse Gas Emissions System Composition Introduction of Membrane Technology Membrane Technology For the Membrane we choose EVONIK as our partner and membrane supplier. Their membrane upgrading process with SEPURAN® Green delivers a constant high biomethane grade with more than 99% purity. In other words, almost all the methane is recovered in bio natural gas quality. Evonik has developed a biogas upgrading process that makes best use of the membranes' separation properties: Through skillful connection of SEPURAN® Green membranes it is possible to obtain methane with a purity level of up to 99% from the crude gas. Just one compressor is needed. Polymide Membrane SEPURAN® Green membranes have the highest CO2/CH4 selectivity and are therefore a superior technology for upgrading biogas. This selectivity of the membranes enables the production of high purity biomethane with superior methane recovery. This distinguishes the Evonik membranes from other membranes that are available.   BENEFITS OF SEPURAN® GREEN MEMBRANE TECHNOLOGY * Reduced operating costs * Low Investment * Easy to operate * Low space requirement and short installation times * Flexible and modular Installation * No chemicals required * No additional drying stage Typical Configurations ● Three Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 99% Mode to utilize Biomethane: CNG or Gas Network Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Minimum Greenhouse Gas Emissions ● Two Stage Membrane Process — Medium Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 97% Mode to utilize Biomethane: CNG Unit Energy Consumption: 0.25-0.25 Kwh/Nm³ Methane Operating Pressure: Medium Pressure, 10-20 Bar Environmental Benefits: Lower Greenhouse Gas Emissions ● Two Stage Membrane Process — Low Pressure Biogenic Methane Index: Over 97% or recovered in bio natural gas quality Methane Recovery: Over 96% Mode to utilize Biomethane: Gas Network Unit Energy Consumption: 0.15-0.20 Kwh/Nm³ Methane Operating Pressure: Low Pressure, 5-10 Bar Environmental Benefits: Lower Greenhouse Gas Emissions Pictures