Unit Ops/Reactor R-201/Overview
2 CRITICAL
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Control Room Operator
COOLING JACKETFEED AFEED BPRODUCTCW INCW OUTMTI-1041340 CTI-1042342 CTI-1043338 CPPI-300428.4 barLI-100172%
Reactor R-201
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Vessel TypeCSTR (Continuous Stirred)
Design Pressure45 bar
Design Temperature420 C
Volume12.5 m3
MaterialSS 316L
Last Inspection2026-01-15
SIL RatingSIL 2
Cascade Structure
TEMPERATURETC-101 (Master)COOLING FLOWFC-201 (Slave)PRESSUREPC-301 (Independent)LEVEL (Master)FEED RATE (Slave)Solid = Primary loopDashed = Cascaded outputArrow = SP cascade link
SIL 2
Overall Safety Integrity Level -- All SIF functions verified. Next assessment due 2026-06-15.
Safety Interlock Matrix
SIS IDDescriptionInput ConditionTrip ActionStatusAction
SIF Logic -- High Temperature Shutdown
TI-1041 > 380CTI-1042 > 380CTI-1043 > 380C2oo3VOTETimer > 5sANDClose Feed ValvesOpen Emergency VentMax Cooling FlowAlarm: CRITICAL
SIS Trip History
TimestampSIS IDCauseAction
2026-04-02 08:14:22SIS-006CW flow < 2 m3/hFeed cutoff, max cooling
2026-03-28 14:41:07SIS-001T > 380C sustained 5sEmergency shutdown
2026-03-15 03:22:51SIS-005P > 40 bar spikeEmergency vent opened
2026-02-20 11:08:33SIS-002P > 35 bar for 10sPressure relief activated
2026-02-01 22:55:18SIS-006CW pump failureFeed cutoff, alarm
2026-01-12 06:30:44SIS-003Level dropped < 15%Feed cutoff
Proof Test Schedule
SIS IDLast TestDue DateStatus
SIS-0012026-03-012026-06-01On schedule
SIS-0022026-02-152026-05-15On schedule
SIS-0032026-01-202026-04-20Due soon
SIS-0052026-03-102026-06-10On schedule
SIS-0062026-03-202026-06-20On schedule
Priority:
State:
Category:
TimeTagDescriptionPriCatStateValueTrip PtActions
Standing Alarm Summary
P1 - Critical2
P2 - High4
P3 - Medium6
P4 - Low3
Total Active15
Alarm Rate (per hour)
DCS Network: Online
SIS: Armed
Reactors: 3/3 Online
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Shelve Alarm
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