Safety Instrumentation Systems

Safety instrumentation systems can help companies achieve risk reduction and incident prevention. A safety instrumented system (SIS) takes automated action to keep a plant in a safe state, or to put it into a safe state, when abnormal conditions are present. The SIS may implement a single function or multiple functions to protect against various process hazards in your plant.

Auditing IPLs -- Using Safety Critical Functions Manuals

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, March 31, 2014 - 4:30pm-5:00pm
The three criteria for an independent layer of protection (IPL) are effectiveness, independence, and auditability. The effectiveness and independence...

Offshore Process Overview

Conference Presentation
Southwest Process Technology Conference
Friday, October 4, 2013 - 1:00pm-3:30pm
Offshore topside facilities are typically designed for minimum processing of the well fluids to minimize the topside facilities weight and footprint...

Calcium Stearate Deflagrations A Series of Unfortunate Events

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, May 1, 2013 - 3:00pm-3:30pm
A series of deflagrations occurred in a plant unloading Calcium Stearate from bulk bags. Each one had a different root cause and illustrates the...

Sound Alarm Management Improves Safety and Profitability

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, May 1, 2013 - 9:45am-10:15am
At the core of ethylene manufacturing, plant operators play a critical role in maintaining safe, sustainable and profitable production. For nearly...

Safety Controls, Alarms, and Interlocks As IPLs

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 30, 2013 - 11:15am-11:45am
Layers of Protection Analysis (LOPA) involves the analysis of the sequence of events leading to an identified scenario. This analysis yields an...

Operations Management Panel Discussion

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 2, 2012 - 12:00am
The intent of this session is to present and develop a framework for management of rotating equipment within the plant. The papers and panel...

How to Structure a Basic Care Strategy for Rotating Equipment

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 2, 2012 - 12:00am
Do your operators and management know the real health of your machinery?. Do they depend too much on the alarm notification of the abnormal condition...

Prediction of Corrosion in Pipes

Conference Presentation
Global Congress on Process Safety
Monday, April 2, 2012 - 12:00am
ABSTRACT AIChE Spring 2012 Meeting Prediction of Corrosion in Pipes Sally Nicola, Victor Carreto, Ray A. Mentzer, M. Sam Mannan Mary Kay O'Connor...

Using LOPA for Sil Assignment: A Tale of Two Plants

Conference Presentation
Global Congress on Process Safety
Sunday, March 13, 2011 - 8:00pm
Two plants operated by the same company have ?identical? ammonium nitrate (AN) solution pump installations. Yet the LOPA teams concluded that the...

Modification of Risk Using Barrier Methodology

Conference Presentation
Global Congress on Process Safety
Tuesday, March 23, 2010 - 8:00pm
Risk assessments use frequency data mostly from generic sources, typically from the North Sea offshore environment or from process facility records...

Instrumented Protective Systems for Distillation Operations

Conference Presentation
Global Congress on Process Safety
Sunday, March 21, 2010 - 8:00pm
Distillation is one of the most common unit operations in the chemical processing industry. Using relative volatility as a means of separating...

HAZOP, LOPA, SIL: Be Careful What You Ask for!

Conference Presentation
Global Congress on Process Safety
Sunday, March 21, 2010 - 8:00pm
In recent years Process Safety Engineers have promoted the use of HAZOP to identify hazards and assess safeguards, followed by LOPA to identify if...

Mechanical Integrity - State of the Art

Conference Presentation
Global Congress on Process Safety
Tuesday, April 28, 2009 - 4:00am
This session presents papers on the latest mechanical integrity concepts, practices and programs. All aspects of mechanical integrity are covered,...

Guidelines for Safe and Reliable Instrumented Protective Systems

April, 2007
This book explains the decision-making processes for the management of instrumented protective systems (IPS) throughout a project's life cycle. It uses the new IEC 61511 standard as a basis for the work processes used to achieve safe and reliable process operation. By walking the reader through a...

Guidelines for Mechanical Integrity Systems

July, 2006
In recent years, process safety management system compliance audits have revealed that organizations often have significant opportunities for improving their Mechanical Integrity programs. As part of the Center for Chemical Process Safety's Guidelines series, Guidelines for Mechanical Integrity...

Guidelines for Safe Automation of Chemical Processes

October, 1993
Increased automation reduces the potential for operator error, but introduces the possibility of new types of errors in design and maintenance. This book provides designers and operators of chemical process facilities with a general philosophy and approach to safe automation, including independent...

Reliability for Safety Instrumented Systems

September
2004
Instrumentation
__
J. Patrick Williams
This article offers a detailed reliability-based methodology for determining the safety integrity level of instrumented systems by providing overpressure protection where arrangements of multiple pressure-relief valves are impractical to implement.
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