1 Potential for Lower Cost Gas Analysis Using Miniaturized Industrial Raman Spectroscopy IFPAC 2004 Presentation January 13, 2004 Ronald R. Rich, President Atmosphere Recovery, Inc nd Avenue North, Suite 110 Plymouth, MN Ph: (763) Fax: (763) Web:

2 Company Background  Founded Dana Corporation & DOE R&D  Heat Treating Furnace Processes  Grant & Contract Funding  Process Gas Recycling System Development  Laser Raman Gas Analyzer & Gas Processing Development  – Analyzer/Controller Field Trials  – Furnace Analyzer Offerings  – Bio-Pharma Analyzer Offerings

Significant Process Industries - Gas Based  Metal Processing – Initial Success  Automotive & Aerospace Heat Treating  Metal Refining & Powdered Metal  Many Others – Ready for Trials  Bio-Pharma  Petrochemical  Semiconductor  Energy Utilities  Glass & Ceramic  Continuous Emission Monitoring

Manufacturing Process Goals – General  Lower Production Costs  Higher Productivity and Yields  Improved Quality  Capital Avoidance  Reduced Feedstock & Energy Use  Other Factors  New Processes & Materials  Lower Analyzer Cost of Operation  Reduced Process Air Emissions  12 Month Payback (Max.)

5 Process Gas Conceptual Needs – Better Control, Less Use Fixed Flow or Single Gas High Use (H) Std. Multi-Gas Adds Control Med. Use (M) Complete Gas Control/Reuse Low Use (L) Gas- Based Process Reactor Natural Gas and Liquid Fuels Process Gases and Liquids (Vapors) Waste Gas Amounts H M L

6 Typical Process Gas Control - Measures Only One Gas Species  Example Types  Zirconia Oxygen Probe – Measures Oxygen  Dew Point Meters – Measures Water Vapor  Electrochemical Cells – Low Range Single Gases  Thin Film Technologies – Too Many Interferences  Benefits  Proven Technology (Typically)  Lower Capital Cost  Low Complexity  Disadvantages  Other Gas Constituents Assumed (Guessed)  Assumptions Often Wrong  Least Accurate Process Control Option  Limits Process Control Options & Improvements

7 Improved Process Gas Control – Absorption-Based Optical (IR)  Measures Multiple Gas Species  Carbon Monoxide  Carbon Dioxide  Methane  Benefits  Proven Technology and Vendors  Can be Used to Reduce Process Gas Use Somewhat  Disadvantages  Cannot Measure Most Diatomics (H 2, N 2, F 2, O 2, Etc.)  Expensive to Measure Many Corrosive Gases  Detectors Have Limited Measurement Range  Requires Frequent Calibration  Species Measurement Has Significant Overlap  Limits Use of Higher Efficiency Gas Mixtures

8 Other Gas Analysis Technologies – Higher Cost of Ownership  Gas Chromatography (GC)  High Installed Capital Cost ($25,000 - $60,000+)  Slow (2 Minutes+)  Complex – Use Requires Training  Carrier Gas and Frequent Calibration  Laboratory and Petrochemical Processes Predominate  Mass Spectroscopy (MS)  Higher Capital Cost ($50,000 - $120,000)  Requires Vacuum Pump  Ionizer Susceptible to Water Damage  Expensive to Maintain  Gas Mixtures Often Require Second Analysis Method

9 Ultimate Process Control Goal – Practical Complete Gas Analyzer  Measure All Reactive Gas Species  Detector Range - Low PPM to 100%  Work with Elevated Sample Temperatures  Fast Response  Compact and Operator Friendly  Rugged, Reliable, Easy to Service  Minimal Calibration  Low Cost of Ownership  Potential for Miniaturization

10  Unique Frequency “Shift” for Each Chemical Bond  Little Interference Between Most Gases  Measures Gases of All Types (Except Inerts)  Rapid “Real Time” Response Rates Possible  Signal Directly Proportional to Number of Gas Atoms  PPM-100% Gas Concentrations with One Detector  Resolution and Accuracy Depends On:  Laser Power and Optics Variation  Gas Concentration and Pressure  Molecular Bond Type  Background and Scattered Radiation  Optical and Electronic Detector Circuitry Laser Raman Gas Spectroscopy - Features

11 Core of Laser Gas Control – Unique 8 Gas Detector Module Mirror Polarizer Prism & Mirror Laser Beam Gas Sample Tube Gas Out 8 Optical Filters/Sensors (1 for Each Gas Measured) Detector Assembly Gas Out Special Particle Filter Plasma Cell Gas to be Analyzed In

12 Detector Module Features  Internal Cavity-Based Raman  Low Power Laser (Helium-Neon Plasma)  Sample Gas Flows Through Instrument  Higher Inherent Accuracy  Discrete Optical Filtering and Quantifying  Any 8 Gases Detected Per Module  Process Specific Configurations & Module #s  Simultaneous Detection of All Gas Species  Fast Detector Updates (50 milliseconds)  Only High Nitrogen Dioxide Levels Interfere  Array Based Interference Computations  10 Minute Module Exchange

13 Typical Gas Constituents Monitored and Detection Limits Gas SpeciesLower Limit Hydrogen - H ppm* Nitrogen - N 2 50 ppm Oxygen - O 2 50 ppm Water Vapor - H 2 O10-50 ppm* Carbon Monoxide - CO50 ppm Carbon Dioxide - CO 2 25 ppm Organics - C x H y ppm* Ammonia - NH ppm* *Customer Selectable – Selecting Lower Value Limits The Upper Range to 30%; Other Gas Species Substitutable as Options

14 Gas Analyzer – Current Subsystem Detector Assembly Integrated Computer & Control System Sample Pump, Valves and Pressure Control

15 Subsystem Features  Integrated Sampling and Calibration System  Internal Pump and Valves  Low Volume Sample Gas Flows (200 ml/minute)  Multiple Sample Port Options  Automated Zero and Span Calibration  Automated Sample Line Monitoring (Flow & Pressure)  Integrated Electronics & Software  Pentium III Computer w/ HMI and Data Trending  Customizable Process Deviation Analysis  Local and Remote Displays and Interfaces  OPC Server and Client for Connectivity  Available Analog and Digital I/O Options  Multiple Configurable Process and PLC Interfaces  NeSSI Integration Now  NeSSI Generation II Potential

16 Example Main Control Screen

17 R&D Analyzer – 4 Sample Locations Model 4EN Furnace Gas Analyzer Inside View Outside View

18 Mobile Furnace Audit Analyzer – 4 Samples, 8 Pressures, 8 Temperatures  Furnace Tuning & Commissioning  Furnace Performance Problem Resolution  Advanced Atmosphere Demonstration and Testing  ARI/APCI Consulting Service

19 RC Analyzer/Controller – 2 Batch Furnaces Inside View Outside View

20 Analyzer/Controller – 16 Zone Continuous Furnace Inside View Outside View

21 Current Product Integrates Sampling System & Added Features  Fully Integrated Sample System (1-16 Ports)  “Real Time” On-Line Monitoring and Control (1 to 15 Second to Update Each Sample Location)  Operates with Existing PLCs and Sensors  Low Volume Sample Gas Flows (200 ml/minute)  Electronic Flow and Pressure Monitoring  Optics Protection and Enclosure Inerting  Sample Line Pre-Purge and Back-flush Options  Automatic Condensate Removal  Precision Temp. Controlled NEMA Enclosures  Self-Monitoring of Critical Functions  Many Wired and Wireless Communication Options

22 Phase I Analyzer Subsystem Summary  Dimensions: 45 x 30 x 25 cm. (18” x 12” x 10”)  Weight: 20 kg. (45 lbs.)  Laser: HeNe Gas Intracavity  Detector Module: Discrete Optics & Detectors  Electronics: Discrete Components on Multiple Boards  Power: 150 Watts (with Detector Heaters)  Sample System Control: PC-Based - Fully Integrated  Process Control Function: PLC & PC-Based - Integrated  Subsystem Price: $15,000 (100 Units)

23 Phase II Analyzer Size Reduction  Dimensions: 20 x 15 x 10 cm. (8” x 6” x 4”)  Weight: 7 kg. (15 lbs.)  Laser: Solid State Intracavity  Detector Module: Integrated Optics & Detectors  Electronics: Discrete Components on Single Board  Power: 30 Watts (with Detector Heaters)  Sample System Control: External Controller (CANBus ?)  Process Control Function: Reliant on External Controllers  Subsystem Price: $5-7,000 (1,000 Units) Phase II Raman Multi-gas Analyzer Relative Size ( )

24 Phase III Analyzer Size Reduction  Dimensions: 3.8 x 3.8 x 10 cm. (1.5” x 1.5” x 4”)  Weight: 2 kg. (4 lbs.)  Laser: Solid State Intracavity, Chip Integrated  Detector Module: Chip Integrated Optics & Detectors  Electronics: Chip Integrated as Possible  Power: 3 Watts or less (with Detector Heaters)  Sample System Control: NeSSI on CANbus (or None)  Process Control Function: External Controllers  Subsystem Price: $1-3,000 (10,000+ Units) Phase III NeSSI Gen II Raman Multi-gas Analyzer Relative Size (2006) Phase II Raman Multi-gas Analyzer Relative Size ( )

25  Phase I – Current Fully Customizable Product  24/7 Manufacturing Multi-gas Analysis & Control  High Temperature or Severe Environments  Phase II – Next Product  Industrial, Portable and IAQ/Security Analysis  General Purpose Industrial, Commercial & Military  Phase III – Fully Compliant NeSSI Product  Replacement of Single Purpose Gas Detectors  Higher-End Direct Consumer and OEM Markets  Allows Close Proximity or In-Situ Installation Markets & Applications

26 Thank You For Listening  Looking for Demonstration Sites  Looking for Technology, Marketing & Financial Partners  Brochures if Interested  Questions?