Critical P & ID Reviews Using HAZOP-LOPA Methodology Overkil
3
AIChE CCPS SBE CEI IfS Search CCPS Events & Resources Technical Presentations Critical P & ID Reviews Using HAZOP/LOPA Methodology Overkill or Underrated? Share 1 Share Share Safety and Health Division AIChE Spring Meeting and Global Congress on Process Safety Critical P&ID Reviews Using HAZOP/LOPA Methodology ? Overkill or Underrated? Mr. John T. Perez, P.E. Mr. Andrew Madewell Cognascents Consulting Group, Inc. 11777-A Katy Fwy Ste 438 Houston, TX 77079 [email protected] Keywords: Process Safety Management (PSM), HAZOP, LOPA, Process and Instrumentation Drawing (P&ID), Process Hazard Analysis (PHA), Inherently Safer Design (ISD). Abstract Prior to moving from define phase to execution phase on a given project, the typical project protocol is to perform a critical process and instrumentation drawing (P&ID) review as a transition from ?issued for information or preliminary design? to ?issued for design or HAZOP?. The objectives of a critical P&ID review are to (1) identify commercially-positive design changes early in the project lifecycle to reduce downstream implementation costs, (2) identify operational concerns to ensure optimal resolution and long-term operational effectiveness, and (3) identify safety vulnerabilities for early application of inherently safer design (ISD) principles where possible and early identification of safety integrity levels (SIL) for required safety-instrumented systems (SIS). Companies perform critical P&ID reviews using various evaluation methods, including P&ID symbology/element checklists, process hazard analysis (e.g. Checklist, HAZID, and HAZOP), and ?cold-eyes? review. Each of these approaches provides structure to a critical P&ID review; however, each also provides opportunities for commercial, operability, and safety vulnerabilities to remain in the design when applied independently. The author posit that use of a hybrid HAZOP/LOPA process hazard analysis methodology to conduct critical P&ID reviews results in a more rigorous evaluation and reduces the likelihood for commercial, operability, and safety vulnerabilities to persist into the design/execution phase of projects. In this paper, the authors present the advantages and disadvantages of using a hybrid HAZOP/LOPA approach for critical P&ID reviews. They also provide recommendations to enhance the effectiveness of the HAZOP/LOPA methodology when applied to critical P&ID reviews. Specifically, the authors provide examples of commercial benefits realized, enhanced operational insight, ISD successes, and application pitfalls when applying a hybrid HAZOP/LOPA PHA methodology to a critical P&ID review. The target audience for this paper includes project managers, project engineers, EH&S managers, PSM coordinators, and operators; however, anyone involved with small or large capital projects may also benefit from this paper's content. Select Language Preparing for OSHA's Chemical NEP Inspections Presented on Oct 15, 2009 Teaching Reactive Chemical Hazards to Chemical Engineers Presented on Mar 3, 2010 Strategies for Addressing ABET Safety Curriculum Requirements Presented on Feb 6, 2013 Managing Process Safety Risks During Organizational Change Presented on Jul 24, 2013 Topics Events & Resources People & Community Log in About Join Contact Critical P & ID Reviews Using HAZOP/LOPA Methodology Overkill or Underrated? | CCPS 01/05/2014 https://www.aiche.org/ccps/resources/chemeondemand/conference-presentations/critical-p-id-reviews-using-hazoplopa-methodology-overkill-or-underrated 1 / 3
description
Critical P & ID Reviews Using HAZOP-LOPA Methodology Overkil
Transcript of Critical P & ID Reviews Using HAZOP-LOPA Methodology Overkil
AIChE CCPS SBE CEI IfS
Search
CCPS Events & Resources Technical Presentations Critical P & ID Reviews Using HAZOP/LOPA Methodology Overkill or Underrated?
Share 1ShareShare
Safety and Health DivisionAIChE Spring Meeting and Global Congress on Process Safety
Critical P&ID Reviews Using HAZOP/LOPA Methodology ? Overkill or Underrated?
Mr. John T. Perez, P.E.
Mr. Andrew Madewell
Cognascents Consulting Group, Inc.
11777-A Katy Fwy Ste 438
Houston, TX 77079
Keywords: Process Safety Management (PSM), HAZOP, LOPA, Process andInstrumentation Drawing (P&ID), Process Hazard Analysis (PHA), Inherently Safer Design(ISD).
Abstract
Prior to moving from define phase to execution phase on a given project, the typical projectprotocol is to perform a critical process and instrumentation drawing (P&ID) review as atransition from ?issued for information or preliminary design? to ?issued for design orHAZOP?.
The objectives of a critical P&ID review are to (1) identify commercially-positive designchanges early in the project lifecycle to reduce downstream implementation costs, (2)identify operational concerns to ensure optimal resolution and long-term operationaleffectiveness, and (3) identify safety vulnerabilities for early application of inherently saferdesign (ISD) principles where possible and early identification of safety integrity levels (SIL)for required safety-instrumented systems (SIS).
Companies perform critical P&ID reviews using various evaluation methods, including P&IDsymbology/element checklists, process hazard analysis (e.g. Checklist, HAZID, andHAZOP), and ?cold-eyes? review. Each of these approaches provides structure to a criticalP&ID review; however, each also provides opportunities for commercial, operability, andsafety vulnerabilities to remain in the design when applied independently.
The author posit that use of a hybrid HAZOP/LOPA process hazard analysis methodologyto conduct critical P&ID reviews results in a more rigorous evaluation and reduces thelikelihood for commercial, operability, and safety vulnerabilities to persist into thedesign/execution phase of projects. In this paper, the authors present the advantages anddisadvantages of using a hybrid HAZOP/LOPA approach for critical P&ID reviews. Theyalso provide recommendations to enhance the effectiveness of the HAZOP/LOPAmethodology when applied to critical P&ID reviews. Specifically, the authors provideexamples of commercial benefits realized, enhanced operational insight, ISD successes,and application pitfalls when applying a hybrid HAZOP/LOPA PHA methodology to a criticalP&ID review.
The target audience for this paper includes project managers, project engineers, EH&Smanagers, PSM coordinators, and operators; however, anyone involved with small or largecapital projects may also benefit from this paper's content.
Select Language
Preparing for OSHA's Chemical NEPInspectionsPresented on Oct 15, 2009
Teaching Reactive Chemical Hazards toChemical EngineersPresented on Mar 3, 2010
Strategies for Addressing ABET SafetyCurriculum RequirementsPresented on Feb 6, 2013
Managing Process Safety Risks DuringOrganizational ChangePresented on Jul 24, 2013
Topics Events & Resources People & Community Log in About Join Contact
Critical P & ID Reviews Using HAZOP/LOPA Methodology Overkill or Underrated? | CCPS 01/05/2014
https://www.aiche.org/ccps/resources/chemeondemand/conference-presentations/critical-p-id-reviews-using-hazoplopa-methodology-overkill-or-underrated 1 / 3
Use credits
Buy now
Buy now
Free access
Free access
Related Topics:
You will be able to download and print a certificate for these PDH credits once the contenthas been viewed. If you have already viewed this content, please click here to login.
John T. Perez
Watch the following preview of this presentation.
No problem. You just have to complete the following steps.
You have completed 0 of 2 steps.
You must be logged in to view this content. Log in now.
You must purchase this technical presentation using one of the options below.If you already purchased this content recently, please click here to refresh the system'srecord of ownerships.
Credits 0.5
List Price $25.00
AIChE Members $15.00
AIChE Undergraduate Student Members Free
AIChE Graduate Student Members Free
Critical P & ID Reviews Using HAZOP/LOPA Methodology Overkill or Underrated? | CCPS 01/05/2014
https://www.aiche.org/ccps/resources/chemeondemand/conference-presentations/critical-p-id-reviews-using-hazoplopa-methodology-overkill-or-underrated 2 / 3
About Join Contact Privacy & Security AIChE Code of Ethics AIChE Home
Copyright © American Institute of Chemical Engineers. All rights reserved.
Commitment to ProcessSafety
+
Understand Hazard & Risks+Manage Risks+Learn From Experience+
Venting and EmergencyReliefUpstreamSafety InstrumentationSystemsSafe DesignResearch and DevelopmentHuman Factors and CultureDust HazardConsequence ModelingChemical Reactivity HazardsBiotechChemical SecurityTransportation Safety
CCPS MeetingsEvents Calendar
Videos en espaňolVideos in English
Process Safety Beacon+PERD: Process Equipment Reliability DatabasePSID: Process Safety Incident DatabaseReactivity Management Tool (RMT)Process Safety GlossaryProcess Safety MetricsCCPS Plus Knovel
About+
Value of MembershipBusiness Case for Process SafetyCCPS Membership BenefitsCCPS Membership Costs
Certificate of Safety Achievement
Critical P & ID Reviews Using HAZOP/LOPA Methodology Overkill or Underrated? | CCPS 01/05/2014
https://www.aiche.org/ccps/resources/chemeondemand/conference-presentations/critical-p-id-reviews-using-hazoplopa-methodology-overkill-or-underrated 3 / 3
