Process Safety Management

Developing optimum safety and risk management systems, guidelines and standards, and audit protocols worldwide.

A proactive approach, coupled with properly planned and implemented safety and risk management systems can help you comply with local, state and federal PSM regulations, as well as minimize loss of life, environmental impact, equipment damage, citations and litigation.

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How We Can Help You

ioMosaic pioneered many of the current risk assessment techniques for processes that handle hazardous chemicals.

Our experts support every aspect to ensure that your facility runs safely and efficiently.

Expertise to help you minimize your exposure to fire, injury, property damage, and litigation.

Integrating best practices with cost-effective solutions to address program deficiencies.

Helping manage risk with facility siting studies, assessments and recommendations.

Senior knowledgeable engineers facilitate PHAs or DHAs in nearly all sectors of the process and processing industries.

Decades of experience leading incident investigations for process industry companies.

We prepare expert opinion reports and provide expert testimony for process incident cases.

Experienced engineers who have performed LOPAs on a wide range of facilities and terminals.

Our experts are at the forefront of pipeline Process Safety Management proficiency.

Proven track record of performing QRAs for facilities, pipelines and transportation routes.

Well versed in assisting global companies with their sustainability reporting communications.

Decades of experience mitigating hazards for the chemical and pharmaceutical industries.

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Featured Case Studies

 

Corporate Guidance On Risk Management

The chemical company of a large integrated energy company was developing a corporate standard for LOPA, which incorporated a risk ranking matrix. The company was interested in obtaining an independent review of the design of the risk matrix, and in benchmarking the underlying risk tolerability criteria with generally accepted industry norms.

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A large Canadian refinery was performing risk assessments to identify personnel, environmental, and operational hazards in order to satisfy legal and business requirements. This work was being done on a planned schedule, with each unit being reviewed annually. The challenge was to use Process Hazard Analysis (PHA) methodologies that provided an effective analysis appropriate to the particular unit to be studied and the potential hazards.
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When a tank car failed at a customer’s plant, a release of toxic gas occurred. Our client, the supplier of the chemical, was the subject of a class action lawsuit.
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A major pulp and paper manufacturing company in Mississippi determined that its process safety management (PSM) program had to do more than merely follow OSHA regulations; they wanted it to also be effective in preventing accidents.

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Featured Video

PSM Frequently Asked Questions

Does your facility need a PSM program? Is your PSM program effectively implemented?

If your facility uses, stores, manufactures, handles, or moves flammable or highly hazardous chemicals on site above the threshold quantity (TQ), OSHA does require PSM implementation. Learn the facts about process safety management.

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Our Team

Georges A. Melhem, Ph.D., FAIChE

President & CEO The founder of ioMosaic and internationally renowned expert in the areas of pressure relief and flare systems design, chemical reaction systems, process safety and risk analysis. Read more...

Neil Prophet

Senior Vice President and Partner He brings over 20 years of experience in pressure relief and flare systems design project management and engineering expertise for chemical, pharmaceutical and petrochemical companies. Read more...

Katherine Anderson, CCPSC

Senior Principal Consultant Experienced project leader in hazard identification, evaluation, functional safety, process safety and risk management. Read more...

John Barker, Ph.D.

Director The head of our international offices in the U.K. and the Kingdom of Bahrain and an expert in risk management for oil, gas and transportation. Read more...

Pamela M. Nelson, CCPSC

Principal Consultant She leads process safety projects for business units across the U.S., Canada, Thailand, China, and the U.K. Read more...

Marcel Amorós Martí

Director and Partner His expertise consists of a diverse range of industries from chemical and petrochemical to oil and gas and utilities. Read more...

Dianne Coon, CSP

Principal Consultant A CSP Certified Safety Professional with 32 years of experience in process safety and health, and safety and environment (HSE) management. Read more...

Charles Lea, P.E.

Director, Minneapolis Office Lead He directs a number of large technical projects across multiple offices and is also responsible for all project management in our Minneapolis office. Read more...

Featured Resources

Managing Chemical Reactivity Hazards in Multipurpose Equipment

Understanding the likelihood and potential for raw materials to interact unintentionally in multipurpose equipment is key for process safety risk identification and management efforts. Read this white paper for guidance that can help you to better understand your organization’s potential vulnerabilities related to chemical reactivity hazards.

Read the White Paper

Quantify Explosion Venting Dynamics in Vessels Enclosures and Energy Storage Systems

Explosions can occur in vessels or enclosures containing flammable gases and/or dusts. Explosion venting, often referred to as deflagration venting (because we cannot practically vent detonations), is used to protect from catastrophic vessel/enclosure failure. Simplified equations are often used to determine the deflagration relief requirements. Simplified equations can be found in standards such as NFPA-68 [1]. While easy to use, simplified equations tend to overestimate the relief requirements and have several practical limitations.

Simplified equations provided in NFPA-68 [1] require the use of an explosion severity index, usually obtained from actual testing in a 20 liter sphere or a 1 m3 vessel. Published severity index data for flammable gases or dusts are also used. Typically, simplified equations for deflagration venting apply to ideal geometries and for short vent lines. They are not readily applicable to complex geometries, systems with elevated initial temperatures or pressures, hybrid systems containing flammable gases and dusts, systems with diluents and/or chemical oxidizers, systems with reduced venting set pressures, geometries with long L/D ratios or geometries with long vent piping where flame acceleration becomes significant.

We have developed detailed deflagration and explosion dynamics methods and computer codes that address many of the shortcomings of simplified sizing methods. These dynamic methods rely on a detailed representation of all possible independent combustion reaction(s) using direct Gibbs free energy minimization [2, 3, 4] coupled with a detailed burning rate model developed from measured explosion data using a 20 liter sphere or a 1 m3 vessel. We describe these methods in what follows and provide examples of how they are applied and how the burning rate models are developed from measured data.


Featured Services

Compliance Auditing

Integrating best industry practices into the performance-based expectations of PSM compliance programs with cost-effective solutions to address program deficiencies. Read more...

Hazard Analysis (PHA/DHA)

Senior knowledgeable engineers facilitate PHAs or DHAs in nearly all sectors of the process and processing industries, either hands-on or remotely. Read more...

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