Value Maximization through PRAJ's 2nd Generation Smart Bio Refinery. Amol Sheth October, 17 th 2016

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1 Value Maximization through PRAJ's 2nd Generation Smart Bio Refinery Amol Sheth October, 17 th 2016

2 Discussion Points Technology development & commercialization Praj s 2G Ethanol Technology Innovative Tech. Value Maximization Praj Industries Ltd CONFIDENTIAL 2

3 Technology Development, Scale up & Commercialization Praj Industries Ltd CONFIDENTIAL

4 Praj R&D Capability Innovation Centre Overview 80,000 sq ft of Labs, Pilot Plants, and Offices 90 technologists - 25 PhDs, 65 Masters 5 Technology Centers of Excellence - Biology, Chemistry, Engineering 18 Well Equipped Labs Pilot Plants 1 MTPD (bone-dry) second generation ethanol pilot plant 1 multi purpose pilot plant Intellectual Property Granted Patents 16 Patent Applications Filed 7 Patents Applications in Progress - 8 FOCUS BIO Refinery Bio-Fuels, Bio-Chemicals Environment Health & Wellness Praj Industries Ltd CONFIDENTIAL 4

5 Praj expertise in technology scale-up 100 KLPD 6 KLPD (5.5 MGPY) 200 KLPD 1200 KLPD (110 MGPY) Praj s ethanol plants across globe Quick scale-up & commercialization expertize End to end solutions from feedstock processing to final product Integration engineering water/energy optimization Front end engineering & design (FEED) Process & equipment design SKID mounted systems Architectural & civil engineering Praj has rich expertise of over 3 decades of technology scale-up Praj Industries Ltd CONFIDENTIAL 5

6 Building success ladder 1G 1.5G 2G Praj s core competencies Technology & Integration engineering Engineering & Manufacturing Project & construction management Quick scale-up & technology Commercialization Research & Development 16 Patents Knowledge base of 750 References 75 countries 5 Continents Over 3 Decades of rich experience of ethanol industry along with Praj s core competencies enabled us in developing sustainable future ready technologies Praj Industries Ltd Confidential 6

7 Feedstock s 1G vs. 2G Technical Complexity Technical Complexity Technical Complexity SO What are these Sugars and Why Should I Care? C6 H12 O6 Hexose, Glucose is the main one C5 H10 O5 Pentose, Xylose is the main one

8 Feedstock mapping and testing Global Feedstock mapping samples of Lignocellulosic biomass from India, Latin America, N. America and Europe. 100 corn residue samples from USA. Feedstock type distribution samples across India : Sugarcane residues, Corn residues, Rice Straw, Cotton stalk. Accomplishments Validated analytical methods from NREL USA. Continuous Program Evaluation of newer feedstock's like Empty Fruit bunches from Palm, grasses, MSW etc. Comprehensive mapping of Cellulosic Feedstocks Regional & Seasonal Variability Praj Industries Ltd Confidential 8

9 Feedstock variation. Parameters Unit Test Values Bagasse Bagasse Pith Corn Residues Cotton Stalk Palm EFB Rice straw Total solids %w/w Moisture %w/w Glucan %w/w Xylan %w/w Arabinan %w/w Acetate %w/w Acid Insoluble lignin %w/w Acid soluble lignin %w/w Ash %w/w Protein %w/w Extractives (water) %w/w Extractives (95% ethanol) %w/w Wheat Straw Robust technology which can handle feedstock variation Analysis done using standard NREL lap method Praj Industries Ltd Confidential 9

10 India - State wise biomass availability State Total Biomass produced (MMT) Surplus Biomass available after current utilization (MMT) Surplus biomass CONVERTIBLE for ethanol production (MMT) Collectable Biomass (40%) of Convertible (MMT) Tamil Nadu Rajasthan Kerala MP Gujarat Punjab Karnataka Orissa West Bengal Maharashtra Chhattisgarh Andhra Pradesh Bihar Haryana Telengana Uttrakhand Uttar Pradesh Jharkhand Total Praj Industries Ltd CONFIDENTIAL 10

11 enfinity Praj s 2G Ethanol Technology Praj Industries Ltd CONFIDENTIAL

12 enfinity Praj s 2G Ethanol Technology Our technology brings infinite possibilities to the environment and energy challenges confronting mankind by making use of nature s endless resources. That s why we proudly call it..enfinity. Praj Industries Ltd CONFIDENTIAL 12

13 Bio-Refinery 2G ethanol/bio-chemicals plant processing biomass Feedstock Handling Feedstock Preparation Pretreatment System / Washing Enzymatic Hydrolysis / Liquefaction Fermentation Distillation & Dehydration Waste Water Treatment End to End integrated Process Addition of challenges Praj Industries Ltd Confidential 13

14 Pre-treatment Choice of pre-treatment is critical. It must take into account Solids concentration Compatibility with Feedstock Selection of enzymes Fermentation organism Limited size reduction to avoid high power requirement Praj Industries Ltd Confidential 14

15 Pre-treatment Pervasive impact on Size Reduction Feedstock cleaning & Washing Hydrolysis Fermentation Product Recovery Residue Processing Waste water treatment and water recycle potential Leading to overall impact on Project economics Praj Industries Ltd Confidential 15

16 Pre-treatment Following undesirable byproducts formed Furfural HMF Acetic Acid Phenolic Undesirable due to Lower sugar production and lower process efficiencies Inhibit enzymes and Inhibit fermentation microorganisms Aldehydes Gypsum Praj Industries Ltd Confidential 16

17 Pre-treatment Strategies to deal with? inhibitors and toxins MANAGE REMOVAL of Toxins/ Inhibitors Toxins/ Inhibitors Praj Industries Ltd Confidential 17

18 Removal of Toxins/Inhibitors Solid liquid separation - followed by Membrane Reverse Osmosis OR Activated carbon OR Ion exchange Impacts OPEX - water, energy and waste water treatment Adds CAPEX Compromises economics of the technology Praj Industries Ltd Confidential 18

19 Managing Toxins/Inhibitors Adopt suitable hydrolysis strategy Selection of enzymes Mode of operation Fed batch, Continuous, etc. Solids concentration Adopt suitable fermentation strategy Selection of tolerant yeast / micro-organism Mode of operation Fed batch, Continuous etc. Adapt culture / platform for WWTP Bio-methanation Impact of phenolic components Incineration of residues Impact of alkalinity Needs investment in technology development Praj Industries Ltd Confidential 19

20 Benefits of low solids concentration in pretreatment Better flow characteristics Better mixing efficiency More efficient enzyme use Higher enzymatic and fermentation efficiencies Fewer choking issues Far lower erosion issues & Process downtime Praj Industries Ltd Confidential 20

21 technology optimization journey Pilot Plant Operations Optimization on customer preferred biomass & Engineering package for commercial scale units 2016 Execution of 12 TPD 2 nd Gen Bio refinery & Commercial offerings Biomass to Bio refinery Operational since January 2009 Raw material processing capability Corn Cobs + Corn Stover Sugarcane Bagasse, Cane trash, Pith Rice straw, Wheat straw, Cotton stalk Technology optimization journey Praj Industries Ltd CONFIDENTIAL 21

22 Data on Feedstock processing at Pilot plant Sugarcane Bagasse 120 MT Corn Cobs 150 MT Corn Stover 60 MT Corn Residues (Mixed) 15 MT Palm Residues 5 MT Wheat Straw 5 MT Rice Straw 40 MT Bagasse Pith 20 MT Processed > 400 Metric tons of diverse feedstocks over a span of 3 years and over with 800,000 man hours of R&D spent on the pilot plant and still ongoing. Praj Industries Ltd Confidential 22

23 Technology Evolution via process flows Material Handling Washing Pre-treatment S/L Separation Detoxification Delignification Enzymatic Hydrolysis Co C6 Fermentation C5 Fermentation Distillation & Dehydration Waste Water Treatment 23

24 Praj Industries Ltd Confidential 24 End-to-End Holistic & Integrated solution Performance parameters at par with global benchmarks

25 enfinity Performance over the years 261 Yield (Liters / Ton ) of Feedstock Conversion Cost (Rs/Liter) Bagasse Bagasse Corn Cob Corn Cob (P) 2017 (P) (P) 2017 (P) Praj has made significant performance improvements over last three years Praj Industries Ltd Confidential 25

26 Summary : Technology highlights Proprietary robust end to end process Multi-feed capability Pre-treatment Efficient degradation of biomass to sugars Better biological processing ability Efficient enzymatic hydrolysis Performance in spite of inhibitors No detoxification steps leading to lower capex and opex Thermally integrated process to achieve low net energy usage Water recycled; achieve zero process liquid discharge Enzyme Flexibility Co- Fermentation Intellectual Property Proven technology on multiple enzymes High yields with different enzyme strains Yeast strain for efficient utilization of C5 (pentose ) and C6 (hexose) sugars Higher yield Lower reaction time Higher tolerance to solids Enfinity Technology Process patent filed and already granted in India, SA, Kenya; pending approval in other countries Praj Industries Ltd Confidential 26

27 Summary Feedstock Handling Feedstock Preparation System / Washing Pretreatment Enzymatic Hydrolysis / Liquefaction Fermentation Distillation & Dehydration Waste Water Treatment End to end process and energy integration Integrated 2G Bio refinery for Biofuels & Biochemical Good integration, key to success Praj Industries Ltd CONFIDENTIAL 27

28 Innovative Integrated Bolt-on model Praj Industries Ltd Confidential 28

29 Integrated Bolt-On Existing Sugar Factory Existing Cogeneration Existing 1G Bioethanol complex 2G Bolt-On Module Many 1G ethanol plants operate days / annum Additional days operation using 2G bolt-on module Results in year round operations of bio-ethanol complex Higher asset utilization Fewer unit operations hence lower capex Substantial increase in ethanol production at lower capex Fermentation Distillation Dehydration Utilities Pre-treatment Enzymatic Hydrolysis Hydrolyzed slurry Praj Industries Ltd Confidential 29

30 Grain Fiber to Cellulosic Ethanol Pretreatment Fiber Existing Starch to ethanol Co-product: Bio Oil & DDGS Ethanol 1 G Technology Fiber to Ethanol Hydrolysis Patented Technology Starch Slurry (with Separated bound starch) SELECTIVE GRIND & FIBER SEPARATION TECHNOLOGY Fiber Up to 8 % increase in ethanol yield compared to conventional technology CORN Praj Industries Ltd Confidential 30

31 Value Maximization through PRAJ s 2 nd Gen SMART Bio refinery Praj Industries Ltd CONFIDENTIAL 31

32 Praj Approach... Process Know-how Understanding Feedstock Ethanol & Ethanol based Chemicals Beverage Alcohol Fuel Alcohol Biochemicals Furfural Xylitol Co-Products CO2 Recovery Liquid /Solid Pretreatment & Fermentation Technologies Waste water treatment & recovery Pharma Alcohol Ethylene Propylene Acetic Acid Ethyl Acetate Ethyl Levulinate Levulinic acid Lactic acid Succinic acid Acetic acid Bionutrients Bio-CNG Biogas to Power Praj Industries Ltd CONFIDENTIAL 32

33 Multi-Feedstock, Multi Product SMART Bio Refinery Multi-Feedstock Molasses CO 2 Multi-Product Fuel Industrial grade Alcohol Ethanol 1 st Gen Next Gen Juice Grain Lignocellulosic MSW BIO-REFINERY Bio Fertilizers DDGS Biogas Lignin cake Pharma Rectified grade Spirit Ethanol Bio-Chemicals Bio-Jet Fuel Praj Industries Ltd CONFIDENTIAL 33

34 Multi-Feedstock, Multi Product SMART Bio Refinery Multi-Feedstock Multi-Product 2 nd Gen Rice/Wheat Straw Corn Residues CO 2 Fuel Industrial Ethanol Alcohol Liters Rectified Bio-CNG Spirit KG Sugarcane Residue Bio-Chemicals* Cotton Stalk Biomass cost ~ INR / MT Bio Fertilizers Power export Kwh Note: 1) Liquid CO2 market price of INR8/Kg 2) Bio-CNG price INR 50/KG 3) Bioethanol price INR 46.50/Liter 4) Power price INR 4/Kwh 5) Carbohydrate content in biomass assumed at ~55% * Bioethanol yield will reduce when sugars are diverted for bio chemicals Total Revenue potential ~ INR 17,000 23,000 / MT Praj innovative 2G Bio refinery provides higher returns Praj Industries Ltd CONFIDENTIAL 34

35 Headquarter : PRAJ Tower, Pune - India Thank You / / ) A truly global Organization with multiple & diverse business sectors Praj Industries Ltd 35

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