1. APPLICATION OF SMART MODULAR SAMPLE SYSTEMS AT AN OLEFINS PLANT John B. Cumbus ExxonMobil Chemicals Baytown Olefins Plant

2. History Concept first described at 1998 WAN Meeting Dan Podkulski active on IP 76 “footprint” Committee Industrial Experience has shown benefit of monitoring Semi-conductor industry experience CPAC NeSSI effort

3. Expected Advantages Minimum Engineering /Drafting Effort Simplicity of Construction Ease of Maintenance Leverage Technicians for Higher Priority Activity Higher Service Factors

4. Installation Considerations Designed for relatively clean, dry process streams (light hydrocarbons) Sensors connected to gas chromatograph (analog inputs and analog outputs) Power for sensors originates in the analyzer

5. Supply Filter Bypass Flow Controller Sample Supply Sample Bypass Supply Pressure To Analyzer Calibration Supply Stream Valve (config-1) Guard Filter Stream Valve (config-2) From Analyzer Return F Supply Shut-Off NC NO NC Atmos. Vent Calib. Shut-Off FE PI F Analyzer Flow Controller FE PE Pressure Transmitter

6. Engineering Package Provided by Configurator Pressure Indicator left for Technicians Eight Single Stream and One Dual Stream Three Analog Outputs, Two Inputs

7. Modular Sample System (minus MFMs)

8. Modular System Connections Inside Enclosure

9. New System in an Old Box

10. Assembly Test of Smaller System (76 Pieces)

11. Assembly Test Configuration

12. Assembly Drawings Provided

13. Completed Assembly

14. Example of Mechanic’s Previous Work

15. The “Mechanic”, Age 9

16. Comparison of “Old” and “New” Sample Systems

17. Sample System (Exterior) and Gas Chromatograph (Interior)

18. Gas Chromatograph Display Panel

19. Experience So Far Six of Nine Systems have been in Service since early to mid December Minor Start -Up Problems Encountered with Wiring Inside Sample System One MFM Operated Briefly, then Ceased to Control Flow No other Problems Encountered

20. Conclusions Smart Modular System has performed as expected in limited evaluation time Expected benefits appear to be realistic Thought should be given to GC/Controller programming and what to do with system data Need to expand parts availability,meet electrical classification of at least Div 2

21. John B. Cumbus Master’s in Analytical Chemistry from Auburn University in 1979 (After Pat Sullivan, but before Bo Jackson) Analyzer Engineer at Celanese in Bishop, Texas 1979-1981 Analyzer Engineer at Exxon Baytown Olefins Plant 1981- Present Chairman Exxon Chemicals NA Analyzer Network 1987-1990 Chairman ExxonMobil Worldwide Analyzer Network 1998 to Present Proudest of: Two Daughters and One Son Favorite Activities: Traveling to Florida’s Beaches, Enjoying Fine Rum, and Shooting Handguns (Not at the Same Time)