Part 66 AND MORE
BPCS 66-12 ANTI-FOAM MIXER SHUTOFF
OBJECTIVE: PREVENT MIXER Y-6683 FROM RUNNING WITH NO LIQUID IN C-6682
RESULTING ACTIONS: TRIPS Y-6683 ON LOW LEVEL IN C-6682 OR MANUAL TRIP
BPCS 61-16 REACTOR INTERMITTENT BLOWDOWN
OBJECTIVE: CONTROL INTERMITTENT BLOWDOWN PROCESS TO PREVENT BUILD UP OF SOLIDS, TOCS, AND IMPURITIES IN REACTOR CONDENSATE
RESULTING ACTIONS: EACH IBV WILL OPEN FOR 20 SEC EVERY 12 HOURS
ESS 64-1 C-6401 CHIMNEY TRAY LIQUID LEVEL (BLOW THROUGH PROTECTION)
OBJECTIVE: PROTECT C-6404 AND EQUIPMENT FORM HIGH PRESSURE BLOW THROUGH
RESULTING ACTIONS: CLOSES LV 6401-10A/B
-CHIMNEY TRAY LO LEVEL, C-6404 HI HEAD PRESSURE
BPCS 63-11 QUENCH PUMPS G-6313/14 AUTO START
OBJECTIVE: DETERMINE WHEN G-6313/14 SHOULD START OR STOP
RESULTING ACTIONS: START OR STOP G-6313/14
-AUTO START=RUNNING PUMP IS TRIPPED OR HAS LOW AMPS
-STOP/TRIP=K-6116 TRIPS, LEAN SOLUTION FLOW TRIPS
BPCS 63-18 CATOX ISOLATION
OBJECTIVE: ENSURE CATOX FEED TEMP AND INST AIR FLOW IS APPROPRIATE FOR COMPLETE COMBUSTION OF ETHYLENE AND EO
RESULTING ACTIONS: CLOSES HV 6341-08 (CATOX INLET), OPEN HV 6341-11 (ATM INLET)
-TEMP IS LOW OR INST AIR FLOW IS LOW
ESS 66-4 ETHYLENE BATTERY LIMIT ISOLATION
ESS 66-5 OXYGEN BATTER LIMIT ISOLATION
OBJECTIVE: ISOLATE INCOMING ETHYLENE/OXYGEN BLOCK LIMIT VALVE
RESULTING ACTIONS: CLOSES HV 6601-87/HV 6135-40 (BLOCK LIMIT VALVES) ON HI CYCLE GAS PRESSURE
ESS 61-1 CYCLE GAS WASH PUMPS PROTECTION G-6110/12
OBJECTIVE: PREVENT POTENTIAL LOPC FROM PUMP CASING OR PIPING FAILURE FROM RUNNING PUMPS DEADHEADED
RESULTING ACTIONS: TRIPS G-6110/12 (AND TRIPS G-6206/7)
-HIGH CASE TEMP, K-6116 NOT RUNNING, CYCLE GAS CONDENSATE LOW FLOW
ESS 64-2 C-6401 SCRUBBER WATER BACKFLOW PREVENTION
OBJECTIVE: PREVENT CYCLE GAS BACK FLOW INTO ABSORBER WATER FEED
RESULTING ACTIONS: CLOSE HV 6401-16 AND FV 6401-18 (SCRUBBER WATER FEED VALVES), AND OPENS PV 6417-17 (SHORT LOOP)
-SCRUBBER WATER FEED LOW DP OR LOW FLOW, C-6401 TOP TRAY HI LEVEL, K-6116 TRIP
ESS 63-1 C-6301 BASE BLOW THROUGH PROTECTION
OBJECTIVE: TO PROTECT C-6305 EQUIPMENT FROM OVERPRESSURE CAUSED BY BLOW THROUGH OF CYCLE GAS
RESULTING ACTIONS: CLOSE HV 6301-04/29, FORCES PV 6310-15 TO OPEN
-C-6301 LOW LEVEL
BPCS 63-19 CATOX CONDENSATE PUMPS G-6342/3 AUTO START
OBJECTIVE: DETERMINE WHEN TO START/STOP G-6342/3 AND PREVENT OVERFILLING C-6341
RESULTING ACTIONS: START/STOP G-6342/3
-START=RUNNING PUMP LOW AMPS
-STOP/NOT RUN=LOW STEAM FLOW TO E-6307
ESS 66-6 ETHYLENE CHLORIDE TRANSFER PROTECTION
PREVENT DAMAGE TO G-6609 METERING PUMP
RESULTING ACTIONS: G-6609 TRIPS AND DISCHARGE HV 6608-05 CLOSES
-HI LEVEL IN C-6608, HI PRESSURE IN C-6608, HI SUCTION PRESSURE ON G-6609
ESS 61-3 C-6130 COOLANT SEPARATOR LEVEL
OBJECTIVE: PREVENT OVERFILLING C-6130 AND PREVENT WATER FORM ENTERING MP STEAM HEADER
RESULTING ACTIONS: OPENS HV 6130-22 (LEVEL BYPASS TO C-8107), CLOSES HV 6130-23 (BFW MAKE UP)
-HI LEVEL IN C-6130
ESS 64-5 C-6404 HI HEAD PRESSURE
OBJECTIVE: PREVENT OVER PRESSURE OF C-6404
RESULTING ACTIONS: CLOSE HV 6401-40 (C-6401 TAILS VALVE
-HI OVERHEAD PRESSURE ON C-6404 OVERHEADS
ESS 63-2 C-6301 LEAN SOLUTION ISOLATION
OBJECTIVE: PROTECT C-6305 FROM OVERPRESSURE CAUSED BY BLOW THROUGH OF CYCLE GAS, PROTECT REACTOR CATALYST FROM CARB SOLUTION CARRY OVER
RESULTING ACTIONS: CLOSE HV 6301-07/46 AND FV 6301-19 (HOT FEED), CLOSE HV 6301-06/45 AND FV 6301-05 (COLD FEED), HPCC HV 6301-47 OPENS TO WASH LOWER PACKED BEDS
-C-6301 QUENCH SECTION HI DP, K-6116 TRIPPED, SCRUBBER WATER LOW FLOW, COLD CARB SOLUTION LOW DP AND LOW FLOW
BPCS 63-25 CARBONATE SUMP LEVEL INLET VALVES
OBJECTIVE: ALLOW DRAIN VALVES ON D-6306 TO OPEN WHEN PLANT IS DOWN, PREVENT D-6306 FROM OVERFILLING, PROTECT G-6325 FROM RUNNING WITH LOW LEVEL IN D-6306
RESULTING ACTIONS: 1. CLOSE HV 6306-03 (G-6310/11 SUCTION) AND HV 6306-04 (FROM E-6319/Y-6320) AND LV 6302-02 (D-6323 LEVEL VALVE) ON HI LEVEL IN SUMP OR WHEN REACH OPERATOR SETPOINT 2. TRIP G-6325 ON LOW LEVEL IN SUMP
ESS 75-1 ERU ISOLATION
OBJECTIVE: PREVENT HIGH CONCENTRATION OF O2 IN THE ERU WASTE STREAM TO THE HI CAL HEADER, PROTECT ERU MEMBRANES FROM DAMAGE DUE TO HI TEMP OR LIQUID INGRESS
RESULTING ACTIONS: CLOSE HV 7572-10/11 (ERU INLET VALVES), CLOSE HV 7572-21 (CONDENSATE DRAIN), CLOSE PV 7572-17 (RETURN TO K-6116 SUCTION), OPEN FV 7572-16 (PERMEATE OUTLET)
ALSO SETS PARAMETERS FOR BATCHING LIQUID OUT OF CONDENSATE POT TO C-6401
ESS 61-4 HP N2 ISOLATION
OBJECTIVE: PREVENT LOW PRESSURE AND POTENTIAL BACKFLOW INTO HP N2 HEADER
RESULTING ACTIONS: CLOSE HV 6166-03 (HV BY SKID)
-LOW PRESSURE FROM THE SKID
ESS 64-10 C-6401 EO ABSORBER TOP TRAY LEVEL
OBJECTIVE: PREVENT LIQUID CARRY OVER TO K-6116, PREVENT HI PRESSURE BLOW THROUGH TO C-6404
RESULTING ACTIONS: CLOSE HV 6401-37/38 (UPPER TRAY BATCH VALVES ON LOW LEVEL), LOWERS FLOW SETPOINT ON SCRUBBER WATER FLOW ON HI LEVEL, CLOSES SCRUBBER WATER FLOW VALVES ON HI HI LEVEL
ESS 63-4 RICH SOLUTION FLASH TANK LEVEL PROTECTION
OBJECTIVE: PROTECT C-6305 FROM OVER PRESSURE FROM BLOW THROUGH FROM RSFT, PREVENT CARB SOLUTION CARRY OVER FROM RSFT TO C-6404
RESULTING ACTIONS: CLOSES PV 6305-01 (RSFT OVERHEAD ON HI LEVEL), CLOSES LV 6305-03 (RSFT LEVEL CONTROL TO BOTTOM ON LOW LEVEL)
-MORE PERMISSIVES FOR OPERATION OF LV 6305-03 FOR DRAINING RSFT
BPCS 64-11 EORC BASE HI LEVEL PROTECTION
OBJECTIVE: PROTECT C-6404 FROM HI LEVEL, PREVENT PACKED TRAY FROM HYDRAULIC DAMAGE
RESULTING ACTIONS: FORCES ALL STEAM VALVES CLOSED TO BASE OF C-6404, CLOSES LV 6401-10A
-HI LEVEL IN C-6404 OR HI DP IN LOWER PACKING
ESS-01 REACTION SYSTEM OVERALL LOGIC
OBJECTIVE: 1. REDUCE POTENTIAL OF FLAMMABLE OXYGEN AND HYDROCARBON MIXTURE IN CYCLE GAS, 2. REDUCE THE POTENTIAL FOR AUTO IGNITION OF CYCLE GAS MIXTURES RESULTING FROM EXCESSIVE RESIDENCE TIME, 3. PROTECT REACTOR CATALYST FROM THERMAL, CHEMICAL, AND OVER PRESSURE DAMAGE, 4. REDUCE POTENTIAL FOR EMISSION OF HAZARDOUS COMPOUNDS TO THE ENVIRONMENT
RESULTING ACTIONS: LEVEL 1 TRIP=BALLAST GAS, LEVEL 2 TRIP=ETHYLENE FEED, LEVEL 3 TRIP=OXYGEN FEED
ESS 61-5 METHANE FEED TO CYCLE GAS ISOLATION
OBJECTIVE: MANAGE METHANE BALLAST GAS TO PROCESS AND ISOLATE WHEN NECESSARY
RESULTING ACTIONS: CLOSES HV 6305-25/28 (RSFT ADDITION), HV 6135-15A/B (K-6116 DISCHARGE), AND HV 6400-10 (C-6459 ADDITION)
-ALL 3 ARE TRIPPED BY ESS-01 AND SPECIFIC MANUAL HS'S. RSFT HAS ADDITIONAL PARAMETERS THAT TRIP IT
BPCS 64-13 EORC VENT ISOLATION TO HI CAL WASTE HEADER
OBJECTIVE: PREVENT HI CAL VENT BACK FLOW INTO C-6404 OR FLARE HEADER
RESULTING ACTIONS: CLOSE HV 6404-64 AND FV 6404-39 (HI CAL VENT VALVES)
-LOW DP AROUND VALVES, LOW DP FROM C-6404 TO HI CAL, K-6460 NOT ISOLATED
BPCS 63-26 C-6305 REGENERATOR COLUMN HI LEVEL PROTECTION
OBJECTIVE: PROTECT C-6305 FROM HI LEVEL AND PREVENT DAMAGE TO COLUMN INTERNALS
RESULTING ACTIONS: CLOSE FV 6307-01 (PROCESS STEAM TO E-6307)
-HI LEVEL OR HI DP ON BOTTOM PACKING
ESS 64-6 C-6404 SPARGE STEAM SHUTOFF
OBJECTIVE: PREVENT LOCALIZED OVER HEATING IN THE CO2 STRIPPING SECTION OF C-6404, PREVENT OVER PRESSURE OF C-6404
RESULTING ACTIONS: CLOSES FV 6404-37A/B (UPPER SECTION SPARGE STEAM) AND FV 6404-18 (LOWER STEAM INJECTION)
-HI PRESSURE IN C-6404, LOW PROCESS WATER FLOW AND ETHYLENE FEEDS NOT TRIPPED