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SEPURAN® Green for Efficientbiogas upgrading

German Pavilion REI Expo 2019 Greater Noida Sept 18-20, 2019

Aashish Maheshwari

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Evonik is the creativeindustrial group from

Germany and one of theworld’s leading specialty

chemicals companies.

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Where we can be foundEvonik operates worldwide

Parsippany

São Paulo

Vienna

Essen

Dubai

Shanghai

Singapore

North America

39 sites

Central & South America

15 sites

Asia-Pacific North

30 sites

Asia-Pacific South

23 sites

Eastern Europe

11 sites

Middle East & Africa

12 sites

Western Europe(incl. Germany)

42 sites

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Evonik Fibres GmbH, Austria

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Gas-separation processes using a hollow fiber membrane

Mode of operation of a membrane module for gas separation –bore side feed

Relative permeation rates of various gases

N2H2O Ar CH4H2He CO2 O2

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SEPURAN® Product family to be applied in diverse industries

N2

GreenNG

Noble

SEPURAN®

� Market leading selectivity

� Long term stability

� Industry standard productivity

� Market leader in Biogas upgrading units

� On site nitrogen generation

� Purities from 95-99.5%

� Superior air-factor (~2.2)

� High productive modules

� He recovery from Source gas or Diluted streams

� H2 recovery

� H2/CO ratio adjustment

� CO concentration

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SEPURAN® - value chain and business model

Monomer Polymer Hollow FibreMembrane Cartridge /

Module

OEM / Separation

Process

Evonik Business Technology Support &Application Development

VariousIndustries

End User

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SEPURAN® Green upgrading - biogas vs. biomethane

Organic Waste

Sewage Sludge

POME

Energy Crops

LandfillWaste

AgriculturalWaste

BiogasCH4 – CO2

Kitchen Waste

Pipeline Injection

CNGFuel

Heating

IndustrialProcesses

IndustrialRawmaterial

BiomethaneCH4

LNGFuel

biogasUpgrading

Food & Beverages

Industrial processes

Dry Ice

Greenhouseplants

Carbon dioxideCO2

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Biogas Upgrading – what is essential in order to start a global development

Government Support

• Legal Framework & Standards

• Tax benefits & incentives

• Environmental policies

Industrial & private motivation

• Sustainability & GHG saving mind-set

• Supply / demand CO2 neutral products

• Ready to give up convenience

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Biogas Upgrading Technologies

Main Biogas Upgrading

Technologies

SEPURAN® Green business introductionBiogas Upgrading Technologies

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We expect a lifetime of more than 10 years based on gathered experience

Membrane Technology

Prejudices about membrane technology

• Pre-treatment is needed• gas contamination

cannot harm themembrane

• If contaminationhappens membrane canbe brought back to original performance

Our 3 largest installations:• 6,250 Nm³/h• 5,340 Nm³/h• 4,000 Nm³/h • Plus 30 projects > 1,000

Nm³/h raw biogas

• Most efficienttechnology

• reliable and flexible• best optimum between

capex and opex• development ongoing

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Evonik Process Patent in Europe EP2588217

� IP-protection on 3-stage membrane + 1 compressor design

� Significant reduction of operational cost – minimized recycle streams

� Product qualities AND quantities (yield) > 99.5%

� Exclusively available for Evonik OEM partners

� Non authorized parties selling this protected design cause indirect patentinfringement and for respective customers it is even a direct patent infringement

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Global presence with strong focus on regional Application Technology

Business MGMT and/or AT

Production and AT

NBD in progress

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Feed (pFeed) Permeate (pPermeate)

pFeed pPerm

l

Membrane thickness

Flow

CO2

CH4

Transport mechanism

Sorption feed side

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1

2

2 Diffusion through membrane

pFeed > pPerm

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3 Desorption permeate side

Separation mechanismDifferences in flow across the membranelead to enrichment of the quicker componentin the permeate.

Separation of Methane and Carbon Dioxide with membranes is based on the differences in flow across the membrane

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Selective layer on the outside

Porous substructure for mechanical support

N2H2O Ar CH4H2He CO2 O2

Relative permeation rates of various gases

Sepuran® Membranes are hollow fibers membranes and allow to separate numerous gases inclusive Methane and Carbon Dioxide

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CO2 is passing through the membrane resulting in a methane-enriched Biomethane

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Upgraded Biogas is leaving the membrane as retentate under pressure

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Illustration of a gas separation process in a hollow fibre membrane

The main energy input for Biogas Upgrading with Sepuran® Green is only the electricity for a single compressor

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� IP-protection on 3-stage membrane + 1 compressor design

� Significant reduction of operational cost – minimized recycle streams

� Product qualities AND quantities with yield > 99.5%

� Exclusively available for Evonik OEM partners and their customers

� Non authorized parties selling this protected design cause indirect patent infringement and for respective customers it is even a direct patent infringement

� Patent Granted as MY165009 ; ID P000047617B ; PH 1-2012-502465 ; SG 186357

� Patent Application waiting to be granted as TH1201006751 and VN 1-2013-00260

Patented Biogas Upgrading with Sepuran® Green 3 Stages Processallows to operate only one compressor with reduced recycle rates

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Biogas Gas Separation Biomethane

Bio CNG for vehicles

Bio substitute for Natural Gas for

Electricity Production

Bio substitute for Natural Gas for

Residential & Industrial applications

Upgraded Biogas can be used for several energy intensive applications

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Experiences from more than 250 references

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2019: > 250 Global references of upgrading plants supplied with SEPURAN® Green

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Client: Yesco, ES, City Gas Seoul

Biogas: Sewage sludge from WWTP

Upgrading: 1,500 Nm³/h Biogas

Methane: 97,5 Vol% CH4

Operating Pressure: 9,8 bar

Process: 3-stage membrane

Downstream: Gas grid injection to supply private households & industry

Seoul City, Seoul, South Korea Yesco’s upgrading “Mefin” SEPURAN® Green piped in a rack

Yesco ES, Seoul City SK – City Gas Project in South Korea

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Client: Shandong Minhe BiologicalSci-tech Co. Ltd.

Biogas: Chicken Manure

Upgrading: 2 x 1,000 Nm³/h Biomethane

Methane: 97,0 Vol% CH4

Operating Pressure: 16,0 bar

Process: 3-stage membrane

Downstream: CNG – bottle trailer filling plant-distribution at public CNG stations

Penglai, Shandong Provence, China EnviThan Container, Gasholder Operator and membrane container

EnviTec-Biogas GmbH, Saerbeck DE – Minhe-Project in China

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Client: Montello

Biogas: Municipal Waste

Upgrading: 5 x 1,250 Nm³/h Biogas

Methane: 97,0 Vol% CH4

Operating Pressure: 16,0 bar

Process: 3-stage membrane

Downstream: CNG & gas grid injection CO2-liquefaction sold to respective industry

Montello, Region Bergamo, Italy Montello Waste Treatment Plant Disgester – 5 new ones installed

Tecno Project Industriale, Curno IT – “Montello-Project” in Italy

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Apex AG, Däniken Switzerland – Project “Schönenwerd” Switzerland

Client: ARA Schönenwerd

Biogas: WWTP

Upgrading: 40 Nm³/h Biogas

Methane: 97,0 Vol% CH4

Operating Pressure: 16,0 bar

Process: 3-stage membrane

Downstream: CNG fueling station

Schönenwerd, Solothurn, CH Upgrading Container CNG Storage Fueling Process

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2018: > 150 Global references of upgrading plants supplied with SEPURAN® Green membrane technology

Sepuran® Green membrane can be used in small-, mid- and large scale installations.

* not all installations are displayed here yet

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Summary SEPURAN® Green

Advantages of SEPURAN® Green based Biogas upgrading in a nutshell:

o Best price performance of all membrane systems

o High methane yield of up to >99 % and high purities >99% (patented 3-stage process)

o Highest energy efficiency (~ 0.2 kWel/Nm3/h crude biogas)

o Biomethane is provided at system pressure, dry and in pipeline spec

o Easy to operate, little maintenance – easy start & stop

o No chemical use and no waste water

o Easy to scale up – containerized system

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Summary SEPURAN® Green

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