January 28th 2014

Renewable Fuel in Iowa

Innovation towards 2nd Generation

Introduction

Iowa has an impressive record of supplying a significant portion of the nation’s fuel demands by

building an infrastructure and supply chain in a relatively short period of time

This infrastructure, coupled with a helpful legislative environment, makes Iowa a natural place for

innovators to develop the next generation of biofuels.

The Fiberight Story

• Corn isn’t the only sugar source.

• Anaerobic Digestion - Pathways

• Hydrolysis - Pathways

• Project Update

Sugar fromTrash

MSW Composition

52%

15%

5%

2%

4%

4%

11%

6%

Organic (Low Lignin)

Plastics & Rubber

Metals

Glass

Textiles & Leathers

Durables

C&D/Wood

Non Processible

Typical waste composition Iowa Example

Process

Process

Organic Pulp

Sugar Concentration

& Refining Module

Rapid rate Digester & Gas Compression

Bio-Plastics

Bio-Diesel

Alcohols

Bio-Chemicals

CNG

Core Intellectual Property

Organics rendered for processing

4,000 hrs Demonstration Completed

Upstream processes separate soluble organics (for A/D), recyclables and contaminants, providing in a clean cellulose feedstock for enzymatic hydrolysis.

Organic Pathways

Organic Processes

Anaerobic Digestion

Cellulosic Hydrolysis

Low Solids A/D

High Solids A/D

C5 & C6 Sugars

Biogas & Compost

Biogas & Bio-Products

Biofuels & Biochemical

s

Enzymatic Hydrolysis

RNR

EG I, II

EG III

CBH II

CBH I

CBH: exocellobiohydrolaseEG: endoglucanase

BG: ß-glucosidase

BG

Provided the feedstock is optimized for the process, different enzyme systems hydrolyze the cellulosic structure and produce sugars.

Recent Developments – High Yields

Combining two developed processes has resulted in

high conversion of cellulose to sugars at low

enzyme dosing

Combining with A/D Innovation

Low-rate anaerobic reactors High-rate anaerobic reactors

Anaerobic pond

Septic tank

Standard rate anaerobic digester

Imhoff tank

Anaerobic sequencing batchreactor (ASBR)

Anaerobic contact process

Anaerobic filter (AF)

Upflow anaerobic sludge blanket (UASB)

Fluidized bed reactor

Hybrid reactor: UASB/AF

Properly designed high-rate anaerobic digesters can increase COD conversion by 50%, whilst reducing dwell time by a factor of 50.

Typical Low Solids A/D

FeedingTank

Biogas

Effluent

Peristaltic pump

Media

PerforatedAl plate Sampling

port

Heater

Constant temperaturerecirculation line

Water bath

Peristaltic pump

Sludge wastage

Methanogenic Colony remains in digester

reactor, with significantly higher surface area

contact. Key is to manage

TSS.

Fiberight Low Solids A/D plant

Fiberight’s proprietary processes recover over 90% of COD, via

anaerobic digestion, in less than 8 hours

Experienced up to 26 kg COD destruction per M3 reactor/day

Integrated Process Pathway

Processed Biomass

Anaerobic Digestion

Cellulosic Hydrolysis

Low Solids A/D

C5 & C6 Sugars

Biogas & Bio-Products

Biofuels & Biochemical

s

Energy Generation

Part of an integrated solution

Low solids A/D and cellulose hydrolysis is only feasible when integrated with upstream processing.

Organic rich streams are processed via high solids pulping to create a biomass for further upgrading.

Project Status

Marion Waste Recovery Facility

15 Year agreement signed in August 213, construction starting early summer 2014 – Operational Q4 2014.

Blairstown Biorefinery

Plant conversion commenced Q3 2013, New building addition commencing when ground not frozen!!!!. Equipment install

slated for July 2014.

Craig Stuart-Paul – CEO

With Thanks to Dr. Stephanie Lansing, University of MDcraigsp@fiberight.com

Turning trash into finished biofuel…a disruptive and transformational clean technology