Design Refinery
Transcript of Design Refinery
Mid & Downstream Business Training
ModuleHYDROCARBON PROCESSING – AN OVERVIEW
LNG
PR
OD
UC
ED
WA
TE
RG
AS
Upstream Mid and Downstream
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Module
Plant Design Cycle
DetailEngg.
Pre-Commissioning& Commissioning
Feasibility Study
Process Design /Basic Engg.
FEEDStable Operation& Performance
Testing
Trouble Shooting& Revamp
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ModuleFeasibility Study:
Conceptualization
Process Simulation
Development of Process Flow Scheme
Cost Estimation
Techno-Commercial Evaluation
Basic Engineering:
Mass and Energy Balance
Process Control Scheme
PFDs and Basic Process P&IDs
Sizing and Basic Spec. for Equipments and
Instruments
Mid & Downstream Business Training
ModuleFront End Engineering Design (FEED):
BEP to Project Specific Package (Residual Engineering)
Verification of Process data for Critical items
Preparation of Specifications
Identification of Scope Splits
Identification of applicable Codes & Standards
Commissioning:
Pre-Commissioning
Commissioning
Startup and Feed charging
Performance Guarantee test run
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Module
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ModuleWORK FLOW DIAGRAM
PP
CV
EL
ME
EQ
IN
PEBDEP BDEP
TQTQ
EQUIPMENT LIST
EQUIPMENT LIST
EQUIPMENT LIST
EQUIPMENT LIST
EQUIPMENT LIST
EQ. LIST EQ. LIST
UHD UHD
UHD
UHD
UHD
UHD
UHD
UTILITYSUMMARY
UTILITYSUMMARY
FLARE LOAD SUMMARY
FLARE LOAD SUMMARY
PROCESS D/S FOREQUIPMENTS
PROCESS D/S FOREQUIPMENTS
PROCESS D/S FOREQUIPMENTS
CHEMICALSUMMARY
CHEMICALSUMMARY
LINE LIST LINE LIST
LINE LIST
REVISED P&ID REVISED P&ID
REVISED P&ID
REVISED P&ID
REVISED P&ID
REVISED P&ID
REVISED P&ID
UPDATED D/S FOREQUIPMENTS
UPDATED D/S FOREQUIPMENTS
PROCESS D/S FORMACHINERY ITEMS
UPDATED D/S FORINSTRUMENTS
UPDATED D/S FORINSTRUMENTS
UPDATED D/S FORINSTRUMENTS
PRECOMMISIONINGMANUAL
PRECOMMISIONINGMANUAL
OPERATINGMANUAL
OPERATINGMANUAL
PROCESS D/S FOREQUIPMENTS
HAZARDOUSSOURCE LIST
HAZARDOUSSOURCE LIST
HAZARDOUSSOURCE LIST
PLOT PLANREVIEW & COMMENTS
VENDOR DOCUMENTSREVIEW & COMMENTS
FABRICATION DWG.REVIEW & COMMENTS
PC
EQUIPMENT LIST
LINE LIST
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ModuleREVIEW STAGE:
Review of Contract Documents
Preparation of TQs
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ModuleSTAGE 0:
P&IDs mark up based on General Specifications, Standards, Amendments etc.
Updation of Process Datasheets based on PFD and
other documents
Preparation of UHDs
Sizing of Utility lines
Preparation of Equipment list
Preparation of Utility summary
Preparation of Catalyst and Chemical summary
Preparation of Tie-in summary
Preparation of Line-list
Preparation of Hazardous source list
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Module P&IDs mark up based on General Specifications, Standards, Amendments etc.
Licensor P&ID
Standard Details
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Module
Marked up P&ID
As per the standards, the control valve assembly with block & bypass and Vent & Drain arrangement is shown in detail
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Module Updation of Process Datasheets based on PFD and other documents
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ModuleUpdated Process Datasheets
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Module Preparation of UHDs
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Module Sizing of Utility lines
Mid & Downstream Business Training
Module Preparation of Equipment List
MUMBAI
EQUIPMENT SERVICE NO. DIMENSIONS INTERNAL EQUIPMENT ERECTION DESIGN CONDITION INSULATION
NO. REQD. (ID).X(TL-TL) TYPE THICKNESS WEIGHT PRESSURE TEMP. TYPE THICKNESS
(m) (mm) (Tons) (kg/cm2g) (°C) (mm)
TOP BOTTOM TOP BOTTOM
COLUMNSLNHT UNIT
Top = 2.0
Bottom = 2.8
TL-TL = 27.9
Top = 3.2
Bottom = 4.0
TL-TL = 36.9
PENEX UNIT
Top =1.7
Bottom = 3.2
TL-TL=26.2
TITLE : EQUIPMENT LIST
OPERATING CONDITIONMOC + C.A
PRESSURE (kg/cm2g)
TEMP(°C)SHELL &
HEADTRAYS
125IH171Int : 15.82Ext : FV
91--DA-31701 STRIPPER KCS + 3 mm TP 4101
Trays, DistributorInternal baff les, Vortex Breaker,
DA-31702 DEPENTANIZER KCS + 3 mm TP 4101
Trays, DistributorInternal baff les, Vortex Breaker,
- - 70 119
STABILIZERDA-32810
DA-32811 LPG STRIPPER
57 179
1
1 KCS+3mm TP 410 - -
-TP 410CS+3mm
Int : 4Ext : FV
Int : 13.5Ext : FV
Int : 13.5Ext : FV
232171
IH
80
12060
210179
147119
120
- -
Trays, DistributorInternal baff les, Vortex Breaker,
Trays, DistributorInternal baff les, Vortex Breaker,
- 45 60
ISOMERISATION PROJECT
0.75 x 21
IH
MUMBAI
EQUIPMENT SERVICE NO. DIMENSIONS INTERNAL EQUIPMENT ERECTION DESIGN CONDITION INSULATION
NO. REQD. (ID).X(TL-TL) TYPE THICKNESS WEIGHT PRESSURE TEMP. TYPE THICKNESS
(m) (mm) (Tons) (kg/cm2g) (°C) (mm)
TOP BOTTOM TOP BOTTOM
COLUMNSLNHT UNIT
Top = 2.0
Bottom = 2.8
TL-TL = 27.9
Top = 3.2
Bottom = 4.0
TL-TL = 36.9
PENEX UNIT
Top =1.7
Bottom = 3.2
TL-TL=26.2
TITLE : EQUIPMENT LIST
OPERATING CONDITIONMOC + C.A
PRESSURE (kg/cm2g)
TEMP(°C)SHELL &
HEADTRAYS
125IH171Int : 15.82Ext : FV
91--DA-31701 STRIPPER KCS + 3 mm TP 4101
Trays, DistributorInternal baff les, Vortex Breaker,
DA-31702 DEPENTANIZER KCS + 3 mm TP 4101
Trays, DistributorInternal baff les, Vortex Breaker,
- - 70 119
STABILIZERDA-32810
DA-32811 LPG STRIPPER
57 179
1
1 KCS+3mm TP 410 - -
-TP 410CS+3mm
Int : 4Ext : FV
Int : 13.5Ext : FV
Int : 13.5Ext : FV
232171
IH
80
12060
210179
147119
120
- -
Trays, DistributorInternal baff les, Vortex Breaker,
Trays, DistributorInternal baff les, Vortex Breaker,
- 45 60
ISOMERISATION PROJECT
0.75 x 21
IH
Equipment list
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Module
Equipment List contains the information such as
• Equipment Number
• Service
• Dimensions
• Internals
• Material of Construction
• Operating and Design Conditions
• Insulation Details
• Other Special requirements
Preparation of Equipment List (Continued)
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ModuleSample view of Equipment list
MUMBAI
EQUIPMENT SERVICE NO. DIMENSIONS INTERNAL EQUIPMENT ERECTION DESIGN CONDITION INSULATION
NO. REQD. (ID).X(TL-TL) TYPE THICKNESS WEIGHT PRESSURE TEMP. TYPE THICKNESS
(m) (mm) (Tons) (kg/cm2g) (°C) (mm)
TOP BOTTOM TOP BOTTOM
COLUMNSLNHT UNIT
Top = 2.0
Bottom = 2.8
TL-TL = 27.9
Top = 3.2
Bottom = 4.0
TL-TL = 36.9
PENEX UNIT
Top =1.7
Bottom = 3.2
TL-TL=26.2
TITLE : EQUIPMENT LIST
OPERATING CONDITIONMOC + C.A
PRESSURE (kg/cm2g)
TEMP(°C)SHELL &
HEADTRAYS
125IH171Int : 15.82Ext : FV
91--DA-31701 STRIPPER KCS + 3 mm TP 4101
Trays, DistributorInternal baff les, Vortex Breaker,
DA-31702 DEPENTANIZER KCS + 3 mm TP 4101
Trays, DistributorInternal baff les, Vortex Breaker,
- - 70 119
STABILIZERDA-32810
DA-32811 LPG STRIPPER
57 179
1
1 KCS+3mm TP 410 - -
-TP 410CS+3mm
Int : 4Ext : FV
Int : 13.5Ext : FV
Int : 13.5Ext : FV
232171
IH
80
12060
210179
147119
120
- -
Trays, DistributorInternal baff les, Vortex Breaker,
Trays, DistributorInternal baff les, Vortex Breaker,
- 45 60
ISOMERISATION PROJECT
0.75 x 21
IH
Mid & Downstream Business Training
Module Preparation of Utility summary
Utility Summary summarizes the consumption / generation of utilities in
all equipments.
The utility data for consumption to be furnished with “- ve value”.
Similarly the utility data for generation to be furnished with “+ve value”.
Following are the Utilities taken into account
• Electricity
• Steam
• Condensate
• Boiler Feed Water
• Cooling Water
• Service Water and Portable Water
• Instrument Air, Plant Air and Nitrogen
• Fuel Gas and Fuel Oil
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ModuleSample View of Utility summary
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Module Preparation of Chemical summary
TITLE : CHEMICAL SUMMARY Rev.: 0
1 -- 3200kg MRPL
2 20% Wt 6.5m3 MRPL
3 100% 200kg MRPL
4 100% 20kg MRPL
5 99.9 % Min. 30m3 MRPL
6 -- 2500kg MRPL
7 20% Wt 25m3 MRPL
8 -- 350kg MRPL
Sodium Nitrate (NaNO3)
Make-up Caustic (NaOH) for Penex unit
Anhydrous Ammonia
L&T-CHIYODA LIMITED BARODA, INDIA
Document No.: A-317-4012
ISOMERISATION PROJECT
Required as corrosion inhibitor for LNHT unit
First fill quantity required
Scope of supply
Chemical Identification
Required for scrubbing of gases from stabiliser & during catalyst regeneration of naphta hydrotreating reactor.
As a sulfiding agent during stat-up
% Purity Chemical Service
Required during initial start up.Anhydrous Hydrochloric Acid (HCl)
Sr. No.
For preparing neutralizing solution during regeneration
For preparing neutralizing solution during regeneration
As a promotor for penex reactor catalyst
Required to neutraiize reactor effluent gases
Perchloroethylene (C2Cl4)
DMDS
Caustic for LNHT reactor neutralisation
Soda Ash (Na2CO3)
This document summarizes the consumption of Chemicals for the process.
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Module Preparation of Catalyst summary
TITLE : CATALYST SUMMARY
Bed (m3)
Contingency 5% (m3)
2500
3200
9240
2900 9240
UOP---- Sock 3.62
2600 930
11.2520 Sock2480
6.62Sock
UOP
6.8--
7 FA-32801A Puraspec 20201200Zinc oxide treater
ADS-11
UOP "H-8" Catalyst
FA-32802 1800
DC-32801
Reactor
Saturation Reactor
Sulfur guard bed
24003
2
1
Equip. Tag No.
Sr.No.
Catalyst
SockUOP "S-12" Catalyst
1065DC-31701 UOP
ServiceEquip ID (mm)
Bed Height (mm)
Bulk Density
(Kg /m3)Type
Type of Loading
4 DC-32810 Puraspec 24431100Methanator Reactor
Sock7160 UOP0.34 7.14 --
5 DC-32811UOP "I-8" Catalyst
2900 882 Dense 61 UOP
6 DC-32812UOP "I-8" Catalyst
61 UOP
3720
Manufacturer
19.215
QuantityTotal
quantity (m3)
0.91518.3
0.56 11.76
UOP0.331 6.951 6464.4
Total quantity
(kg)
20464.0
64.05
64.05
Penex Reactor
Penex Reactor
3.05
3.05882 Dense
0.181 3.801
6115.2
56492.1
56492.1
This document summarizes the consumption of Catalyst for the process.
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Module Preparation of Tie-in summary
Battery Limit Tie-in Summary contains the following information for all ISBL & OSBL lines
Flow rate of all process and utility streams going to B/L.
Operating and Design Conditions
Line Specifications
Main Properties of the Streams
(Optional)
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ModuleSample view of Tie-in summary
Sr. Stream Name From To Phase FlowratesNo. L/V/M Tons/hr kg/m3 (L) Visc.
Normal MW (V) cP Pressure Temperature Pressurekg/cm2 g deg C kg/cm2 gmin/nor/max min/nor/max
(C) INCOMING UTILITY LINES:
1 MP Steam B/L HEADER V 36066.0 18.0 0.02 14/15/16 255/260/270 22
2 LP Steam B/L HEADER V 33180.0 18.0 0.02 3/3.5/4 160/175/200 10
3 HP Steam B/L HEADER V 2930.0 18.0 0.01 39/40/41 330/390/408 45
4 Instrument Air B/L HEADER V 625.0 29.0 0.02 4.5/6.5/ - - /40/ - 10.5
5 Cooling Water Supply B/L HEADER L 2378207.0 1000.0 0.60 - /4.5/ - - /33/ - 7
6 Fuel Gas B/L HEADER V 1212.0 15.5 0.01 - /4.5/5 - /40/ - 6
7 Fuel Oil B/L HEADER L 2273.0 854.0 11.50 - /13/20 - /170/ - 25
TITLE : BATTERY LIMIT TIE-IN SUMMARY
MUMBAI
PropertiesOperating Conditions Design Conditions
ISBL
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Module Preparation of Line-list
Line List contains the data related to process conditions and the data related to mechanical design and test conditions for all the lines.
Line List is the base document utilized for verification of major deliverables of Piping department.
Line List contains the information such as
• Line Number• Line Size
• Fluid Code and Piping class
• From & To Location
• State and Nature of the fluid
• Operating (Normal&Alternative) and Design Conditions
• Steam out requirements• Insulation Details• Test fluid and Test pressure
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ModuleSample View of Line-list
TITLE : LINE LIST FOR LNHT UNIT
IDENTIFICATION LOCATION STATE OPERATING (A)
(L/V/M)
1 10-P-3170001-A1A1 606 10 P 317 0001 A1A1 FA-31701 P-3170215 L HC
2 6-P-3170002-A4A1 606 6 P 317 0002 A4A1 GA-31701A P-3170046 L HC
3 10-P-3170003-A1A1 606 10 P 317 0003 A1A1 P-3170001 P-3170216 L HC
4 6-P-3170004-A4A1 606 6 P 317 0004 A4A1 GA-31701B P-3170002 L HC
5 0.75-P-3170005-A1A1 691 0.75 P 317 0005 A1A1 P-3170002 SN-31701 L HC
6 0.75-P-3170006-A1A 691 0.75 P 317 0006 A1A SN-31701 FLARE L HC
7 0.75-P-3170007-A4A1 691 0.75 P 317 0007 A4A1 SN-31701 P-3170001 L HC
8 6-P-3170008-A4A1 606 6 P 317 0008 A4A1 P-3170002 FV-002 L HC
9 6-P-3170009-A1A1 606 6 P 317 0009 A1A1 FV-002 FA-31701 L HC
LINE NO. FROM TONATURE
OFFLUID
INS
UL
AT
ION
TY
PE
INS
UL
AT
ION
TH
K. (M
M)
SR. NO.
P &
ID
NO
.
SIZ
E(IN
CH
)
FL
UID
CO
DE
UN
IT N
O.
LIN
E N
O.
PIP
ING
CL
AS
S
MUMBAI
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Module Preparation of Hazardous Source List
Hazardous Source List is the base document utilized for hazardous area classification drawing deliverable of Electrical department.
This document contains the information such as
• Inlet and Outlet streams of all equipments• State and Nature of the fluid• Composition
• Max. operating temperature
• Properties like Density and Molecular weight
• Flammability
• Flash point• Auto-ignition temperature
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ModuleSample View of Hazardous Source List
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ModuleSTAGE 1:
Hydraulic Check of Process lines
Sizing of Vessels
Thermal rating of Heat exchangers
PSV Sizing & Flare hydraulics
Preparation of Flare Load Summary
Preparation of Equipment datasheets for new items
Scope demarcation for Vendor items
Updation of P&IDs based on Hydraulic results
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ModuleSTAGE 1 (Continued):
Updation of Pumps and Instruments datasheets based on Hydraulics
Updation of Equipment list
Development of Control and Safeguarding Narratives
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Module Hydraulic Check of Process lines
Loop identification in PFD
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Module Hydraulic Check of Process lines
Collecting Inputs required for hydraulic calculations
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ModuleSample View of Hydraulic Calculation Sheet
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Module Sizing of Vessels
Sizing of vessels is carried out based on Project
Design Criteria (Droplet size, Residence time)
Sometimes, Sizing is governed by separation of
fine entrained droplets using mesh pad, impact
separators, etc.
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ModuleSample view of Vessel Sizing calculation sheet
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Module Thermal rating of Heat exchangers
Designing / Rating of heat exchangers is carried
out with the help of HTRI computer program.
This activity enables the designer to model heat
exchangers, allowing the designer to gauge the
performance, geometry and inherent limitations of
the shell and tube heat exchanger even before its
fabrication.
This results in lower risks of damage to the
equipment while in service.
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ModuleSample HTRI Specification Sheet
Sample HTRI Tube Layout
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Module PSV Sizing and Flare Hydraulics
The safety of personnel and the protection of equipments due to overpressure are the basis for the design, sizing, and selection of pressure relieving systems.
All systems and pressure relief devices shall be
designed based on the applicable codes (API 520,
521, etc.), industry standards and practices.
For Flare header Sizing, first we have to determine the appropriate relief contingencies yielding maximum loads
Flare header size has to be large enough to prevent excessive backpressure on the plant safety valves and to limit gas velocity and noise to acceptable levels.
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ModuleSample view of Flare Hydraulics calculation sheet
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Module Preparation of Flare Load Summary
This document summarizes the relief load of all PSVs for the applicable relieving cases.
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Module Preparation of Equipment datasheets for new items
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Module Scope demarcation for Vendor items
Vendor scope of supply has to be identified and to be clearly marked in the P&IDs.
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Module Updation of P&IDs based on Hydraulic results
Licensor P&ID
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Module Updated P&ID based on Hydraulics
Compressor Suction line is increased to 6” from 4” as per hydraulic calculations
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Module Updation of Pumps and Instruments datasheets based on Hydraulics
Licensor Datasheet
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ModuleUpdated Pumps datasheets based on Hydraulics
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Module Development of Control Narratives
This narrative describes the plant control systems by instrumentation.
The purpose of this document are as follows :
(1) To explain control systems to those who may not be familiar with instrumentation symbols or functional logic diagrams.
(2) To define purpose and algorithm of each control system.
Pump auto start systems will be also covered in this
document.
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Module Development of Safeguarding Narratives
The purpose of this narrative is to thoroughly
explain the safeguarding scheme and its
significance. Based on the same it is possible to
understand how safeguarding scheme works and
how it will be depicted in “Cause and Effect
diagram” or “Safeguarding Matrix”.
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ModuleSample of Cause and Effect Diagram
P-5105B HP STEAM VALVE
P-5105A HP BFW PUMP
P-51203 HP BFW PUMP
P-51402A MP BFW PUMP
P-51206A HP BFW PUMP
P-51206B HP BFW PUMP
P-51206C HP BFW PUMP
P-51206D HP BFW PUMP
COMMON TRIP ALARM
CAUSE CLOSE TRIP TRIP TRIP TRIP TRIP TRIP TRIP ALARM ACTION
TAG NO. DESCRIPTIONPEFS NO.
51UZA-2103
51UZA-2102
51UZA-2104
51UZA-2100
51UZA-2105
51UZA-2106
51UZA-2107
51UZA-2108
51UZA-2100
TAG NO.
51LZA-2008 D-0098-51-25-0006 X X X X X 51LZA-2008
51LZA-2011 D-1651-51-50-0018 X X X X X 51LZA-2011
51LZA-2008 D-0098-51-25-0006 X X X X X X X X X 51LZA-2008
51LZA-2011 D-1651-51-50-0018 51LZA-2011
51LZA-2008 D-0098-51-25-0006 51LZA-2008
51LZA-2011 D-1651-51-50-0018 X X X X X X X X X 51LZA-2011
V-51203 LEVEL LOW LOW
V-51210 LEVEL LOW LOW
V-51203 LEVEL LOW LOW
V-51210 LEVEL LOW LOW
<51HS-2012 is 'V-51203' position>
EFFECT
51UZA-2100 V-51203 / V-51201 SGS
DESCRIPTION
<51HS-2012 is 'BOTH' position>
SAFE GUARDING MATRIX UNIT 51
<51HS-2012 is 'V-51210' position>
V-51210 LEVEL LOW LOW
V-51203 LEVEL LOW LOW
Cause Section
Effect Section
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ModuleSTAGE 2:
Interface Activities
Updation of Control & Safeguarding narratives and issue
for HAZOP Study
Updation of Utility summary
Updation of Line list
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Module Interface Activities
Vendor Document Review
Review of Engineering Drawings
Review of Plot Plan
3D-Model Review
Review of DCS Graphics
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Module Vendor Document Review
Some of the Critical points to be reviewed in Engineering Drawings are:
Consistency of Process data as per process datasheets such as Operating & Design Conditions, MOC, Special service requirements, etc.
Review of other technical aspects
(a) Meeting all Specifications as per requirement.
(b) Expected Utility consumption figures.
(c) Guarantee figures, if any.
(d) Other technical requirements specified in the requisition.
(e) Fulfilment of Scope of Supply.
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Module Review of Engineering Drawings
Some of the Critical points to be reviewed in Engineering Drawings are:
Consistency of Process data as per process datasheets such as Operating & Design Conditions, MOC, Special service requirements, etc.
Number of Nozzles
Sizes of Nozzles
Checking location and orientation of all nozzles
especially nozzles for Temperature, Pressure and
Level Instruments as per Project requirements
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Module Review of Plot Plan
Some of the Critical points to be reviewed in Plot plan are:
Consistency of equipments shown in plot plan with Equipment List, PFD and P&IDs.
Are the distances between equipment kept minimum with respect to pressure drop?
Are the height of Towers and vessels enough to provide NPSH of pumps?
Are the equipment located symmetrically such as column and reboilers?
Is there enough space around columns, towers and reactors for removal of internals?
Is there enough space to remove tube bundle of heat exchangers?
Are the equipments arranged considering safety aspects especially for Fired heaters, Compressors and Tanks?
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Module 3D-Model Review
Some of the Critical points to be considered in 3D-model review are:
Is piping arranged to provide straight run requirement such as inlet of tower?
Are CV sets placed as per Project requirements such as closeness to equipment, at high or low level, etc., if any?
Are symmetrical piping considered for AFC’s?
Are the valves located at operable location from the nearest platform or grade?
Is piping arranged to keep special bending radius requirements, if any?
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Module Review of DCS Graphics
Review of Control logics as per Control & Safeguarding narratives
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ModuleSTAGE 2 (Continued):
Updation of Control & Safeguarding narratives and issue
for HAZOP Study
Updation of Utility summary
Updation of Line list
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ModuleSTAGE 3:
Safety Studies / Analysis
Updation of P&IDs based on Safety Studies
recommendation
Preparation of Precommisioning manual
Preparation of Operating manual
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Module Safety Studies / Analysis
HAZOP Study
SIL Study
FIREPRAN Study
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Module
HAZard and OPerability study is a technique to examine
a system, part by part, in a very systematic manner, to
find out the cause and consequence of every conceivable
deviation in the normal operation of the system as well
as during emergencies, start-ups and shutdowns. The
method enables prediction of all possible ways in which
a hazard or an operating problem could arise, whether
the design takes preventive care of them and if not,
recommends changes (Action) as may be necessary.
HAZOP Study
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ModuleSIL
Measurement of confidence level for performance of safety function is called the Safety Integrity Level(SIL)
Safety integrity of a system can be defined as “ The probability (likelihood) of a safety-related system
performing the required safety function under all the stated conditions within a stated period of time”
SIL is a measure of the reliability of the safety function performing to specification.
The SIL is based on the accepted risk level and ranges from 1 to 4
Probability of Failure Safety
Integrity Level (SIL)
Mode of Operation – On demand (average probability of failure to perform
its design function upon demand)
Mode of Operation – continuous (probability of dangerous failure per
hour) 4 > 10-5 to < 10-4 > 10-9 to < 10-8 3 > 10-4 to < 10-3 > 10-8 to < 10-7 2 > 10-3 to < 10-2 > 10-7 to < 10-6 1 > 10-2 to < 10-1 > 10-6 to < 10-7
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Module FIREPRAN study
FIRE PRotection & ANalysis is a new technique employed at the design phase of a facility or installation to achieve the following objectives
Overview the role of the facility and its significance to the overall operation.
Review the facility’s Fire and Explosion Strategy (FES) in the context of the role of the facility and its significance to the overall company.
Analyze threats to loss of containment or other potential sources of combustion events.
Assess release event consequences and explosion scenarios
Review and assess adequacy of threat control measures, mitigation and recovery measures.
Make recommendation for risk reduction measures to achieve levels as low as reasonably practicable (ALARP).
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ModuleExample for Firepran Study
Column middle cut pool fire and isopleths is analyzed as shown below in case of possible explosion due to oil leakage above its Auto Ignition Temperature.
Heat Flux kW/m2
Effects on Human Effects on Property
4
Sufficient to cause pin to personnel if unable to reach cover within 20 seconds.
No damage
12.5
This level of radiation will cause a 30% chance of fatality for a prolonged exposure.
Minimum energy required for piloted ignition of wood, melting of plastic tubing
37.5
Sufficient to cause damage to process equipment. Exposure to this level of radiation is assumed to give rise to a 100% chance of fatality
Failure of steel structures within 30 minutes
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ModuleCritical Area identification
Area in red needs to be given extensive consideration for fire protection systems
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Module
Updation of P&IDs based on Safety Studies
recommendation
Preparation of Precommisioning manual
Preparation of Operating manual
STAGE 3 (Continued):
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Module