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BIOTEN Corp.

Bioten Process

Producing distributed renewable energy by converting wood mill wastes

into electricity and useable heat

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Patented Bioten Process

The Best Biomass Technology Available: Because: It is environmentally correct It is economical in a small size It requires no process water It has no liquid discharges It is efficient for its size It is modular and moveable It is safe It is proven

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Bioten Process Emissions

Emission Summary Emissions Permit1

Actual2

Tons per yearTons per year

SO2 017.85 05.73 CO 028.03 06.80 NOx 194.41 14.31 VOC 038.98 00.00 Visible emissions 20%, EPA Method 9 NoneTOTAL 310.81 96.63

1: Tennessee Permit: 942241F 1995 to 20082: Power and Generation Testing, Hermitage, TN

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The Bioten Process: Brayton cycle power plant ( gas turbine), consisting of adiabatic compression, constant-pressure heating, and adiabatic expansion of hot air using mill waste biomass as the heating fuel

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BIOTEN PROCESS Is A Qualified Gas Turbine Facility

18 CFR Ch. 1 Part 292 small power production and cogeneration qualified facility

Brayton cycle power plant (gas turbine)

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The Bioten Process Block Diagram

Mill Waste

Bark

ForestWaste

Scrap OSB

GrindPulverize

Dry or Wet

Combustorand

Cyclone

Fuel Prep Fuel combustionand APC

Turbineand

Generator

ProcessHeat

Equipment

PowerGeneration

VOC Destruction

Fue

l Col

lect

ion

Stack

ElectricityHot oilSteam

Hot Water

HeatRecovery

LiquidWaste

VOCAshGlaze

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The Bioten Process

Generator

Cyclone

Combustor

Process pipe

Stack

TurbineGear Box Brake

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Plant Layout

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Bioten Patented Process

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Combustor IR Camera

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Fuel Collection and Prep

Mill Waste

Bark

ForestWaste

Scrap OSB

GrindPulverize

Dry or Wet

Combustorand

Cyclone

Fuel Prep Fuel combustionand APC

Turbineand

Generator

ProcessHeat

Equipment

PowerGeneration

VOC Destruction

Fue

l Col

lect

ion

Stack

ElectricityHot oilSteam

Hot Water

HeatRecovery

LiquidWaste

VOCAshGlaze

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Fuel Collection Methods

Live bottom truck with vacuum collection Dump bins Pneumatic transfer Storage Building

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Typical Fuel Storage Building

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Fuel Building Contents

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Fuel Preparation

Air swept pulverizer Dries or Wets Fuel to

Bioten Specifications Pulverizes Wood to

Fuel Dust Classifies Fuel Dust

<1200 Microns Mixes different Fuel

Types i.e. bark and wood

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Fuel Combustion and APC

Mill Waste

Bark

ForestWaste

Scrap OSB

GrindPulverize

Dry or Wet

Combustorand

Cyclone

Fuel Prep Fuel combustionand APC

Turbineand

Generator

ProcessHeat

Equipment

PowerGeneration

VOC Destruction

Fue

l Col

lect

ion

Stack

ElectricityHot oilSteam

Hot Water

HeatRecovery

LiquidWaste

VOCAshGlaze

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Bioten Process Injection, Emissions and Discharge Points

Fuel dust andwaste liquidsInjection at bottom of combustor

VOC’s Mixed with turbine air

Ash/Glaze Discharge

Air Emissions

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Bioturbine Turbine HeatMillion BTU/hr vs. Power

0

1

2

3

4

5

6

7

8

9

10

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150

Fuel (MBTU/hr)

Po

we

r (M

W)

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Bioten Power Plant Fuel Feed Requirements

Wood Fuel Dust Feed Rate vs. HZ

y = 0.0818x + 0.0242R20.9946 =

0

1

2

3

4

5

6

0 10 20 30 40 50 60 70

Auger setting (HZ)

Fe

ed

Ra

te (

lb/s

)

Wood feed vs power

y = -0.1088x22.8442x - 4.4185 +

0

1

2

3

4

5

6

7

8

9

10

0 1 2 3 4 5 6 7

Wood feed rate (lb/s)

Po

wer

(M

W)

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Combustion and APC

Combustor Low NOx

(<3 PPM) 99.99 %

combustion No CO

Cyclone Ash is saleable

as ceramic glaze

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Combustion Pressure Versus Power: Complete Combustion

Power vs pressure

0

1

2

3

4

5

40 60 80 100

CV pressure (psig)

po

wer

(M

W)

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Power Gen and VOC Destruction

Mill Waste

Bark

ForestWaste

Scrap OSB

GrindPulverize

Dry or Wet

Combustorand

Cyclone

Fuel Prep Fuel combustionand APC

Turbineand

Generator

ProcessHeat

Equipment

PowerGeneration

VOC Destruction

Fue

l Col

lect

ion

Stack

ElectricityHot oilSteam

Hot Water

HeatRecovery

LiquidWaste

VOCAshGlaze

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Bioturbine

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Bioturbine Performance

SFC GG speed Wood feed Power wood feed wood feed

HP (lb diesel/hr-HP) (rpm) (ton/hr) (MW) MBTU/hr lb/second

2100 1.01 5500 3.05 0.0 38.8 1.7

3101 1.00 6523 4.46 2.2 56.7 2.5

4000 0.87 6522 5.02 2.8 63.8 2.8

5000 0.79 6631 5.66 3.5 72.0 3.2

6000 0.73 6723 6.30 4.3 80.1 3.5

7000 0.68 6806 6.89 5.0 87.6 3.9

8000 0.65 6875 7.53 5.7 95.7 4.2

9000 0.64 6950 8.24 6.4 104.8 4.6

10000 0.62 7023 8.93 7.1 113.5 5.0

11000 0.61 7100 9.72 7.8 123.6 5.5

12000 0.60 7177 10.40 8.5 132.3 5.9

13000 0.59 7254 11.12 9.2 141.5 6.3

HREW

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Synchronous Generator

6.5 mWe 4160 VAC 3 Phase 60 Hz

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Heat Recovery

Mill Waste

Bark

ForestWaste

Scrap OSB

GrindPulverize

Dry or Wet

Combustorand

Cyclone

Fuel Prep Fuel combustionand APC

Turbineand

Generator

ProcessHeat

Equipment

PowerGeneration

VOC Destruction

Fue

l Col

lect

ion

Stack

ElectricityHot oilSteam

Hot Water

HeatRecovery

LiquidWaste

VOCAshGlaze

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Heat Recovery

HEAT RECOVERY STEAM GENERATOR

PROCESS HOT OIL HEATER (GTS) PROCESS HOT WATER HEATER

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Environmental Benefits

Qualified renewable facility Minor source operating permit 2-4 month permitting process No water requirements Exempt new source by EPA

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Construction 12 months design and construction

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Business Model

Huber owns Power distributor owns and leases to

Huber Combination of Huber and distributor as

owners Contract operations and maintenance Contract fuel pickup

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Tangible Benefits

Excellent rate of return The Bioten Process with GTS has the capability

to supply all the OSB plant utility and energy needs with complete VOC destruction using waste fuel

Low cost source of process heat Backup for existing hot oil systems Increased production (second source of

process heat) Major reduction of natural gas and power bills

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Intangible Benefits

Separate emissions permit Solid and liquid waste destruction Renewable power and heat Environmentally correct National “Green” exposure Contracted operations VOC destruction possible CO2 neutral