High Level Operating Manual (HLOM) Example

Example of a High Level Operating Manual (HLOM) Slugcatcher & Condensate Stabilisation

Contents

• Introduction

• Purpose

• About Unit

• Purpose Of The Unit

• Block Diagram Of Unit

• Process Narrative

• Design Basis & Underlying Theory

• Process Description

• Modes Of Operation

• Description Of All Allowable Phases & Modes

• Specific Mode Switch Diagram

• Description Of Key Issues For Each Mode

• Line-Up & Isolation Strategy

• Relationship With Other Plants/Units/Operating Systems

• Relationships With Other Process Units

• Relationships With Utility Units

• Relationship Sketches

• Relationships With Feeds, Intermediates & Final Product Storage & Handling Facilities

• High Level Power Supply Diagram

• Table Of Feed Streams, Describing Flows, Conditions & Quality Requirements

• Table Of Utility Requirements (Quality & Quantity)

• Table Of Catalyst & Chemical Requirement

• By Products & Waste Products

• Unit Equipment List

• Systemization Catalogue

• Asset Register

• Detail Isolation Requirement

• Performance Criterion

• Key Operating Parameters & Operating Window

• Operating Parameters

• Summary Heat & Material Balance For Each Operating Mode

• Safe Operating Windows For Each Operating Mode

• Design Throughput

• Impact Of Change In Feed Stock Quantity & Quality

• Design Turndown Ratio

• Performance Control Plan

• Process Sampling Scheme

• Transition Procedure For Mode Switch

• Control

• Process Control Narrative

• Control System

• Alarm Description

• Probable Causes For Alarm Excursion & Recovery Actions

• Alarms & Trip Setting Table

• Safeguarding

• Process Safeguarding Narrative

• Process Safeguarding Flow Scheme

• Safeguarding Trips Setting Table

• Description Of ESD System

• Cause And Effect Diagram

• Recovery Procedure For ESD Trips

• Fire And Gas Systems

• List Of Fire & Gas Detectors

• Cause And Effect Diagram For Fire & Gas System

• Fire Fighting Equipment

• List Of Interlocking Valves

• Lock Open/Lock Close Valves

• List Of Pressure Relief Valves

• Unit Performance & Integrity

• Sparing Philosophy

• Equipment Change Over Schedule

• Availability Of Unit

• System Effectiveness Of Unit

• System Effectiveness Unit Throughout Lifetime

• System Effectiveness Unit Systems

• Strategies For Achieving System Effectiveness

• Design System Effectiveness

• Key Parameters For Achieving Design System Effectiveness

• Capacity/Utility Consumption

• Equipment Capacity

• Utility Consumption

• Risk

• Short Term Risk To Operation, Prevention, Mitigation & Recovery Measures

• Identification Of Hazardous Area

• Degradation

• Long Term Risks To The Operation

• Prevention, Mitigation & Recovery Measures

• List Of Operational Limitations Due To Material Of Construction

• Special Areas Of Attention & Risks

• Operator Tasks

• Work Area Split (Inside/Outside) & Operator Rounds

• Key Operator Tasks & Monitoring Requirements For Each Operator Position

• Key Operator Monitoring Tasks

• Inspection Records

• Change History

• Changes Made During Feed Phase

• Changes Made During EPC Phase

• Changes Made During Start-Up (SU) Phase

• Changes Made During Normal Operation (No) Phase

• Overview Of Critical HSE Aspects Of The Unit

• Health Hazards

• Safety (Process Safety)

• Material Safety Data Sheet (MSDS)

• Environmental Hazards

• Continuous Or Intermittent Flare Streams

• Unit Specific HSE Tasks & Activities

• List Of Safety Critical Equipments

• Description Of Fixed Fire Fighting Equipment

• Control Of Open Connections To Process Equipment

• HSE Checklist

• Noise Contour Diagram

• Unit Emergency Response Flow Chart

• Pre-Incident Plans For Emergency Scenarios Rated High In Unit Safety Case

• Plant Layout

• Asset Work Register

• Reference Documents

• Design Memorandum

• Engineering Drawings

• Alarm & Trip Schedule

• Safety Memorandum

• Analytical Memorandum