2012

Global and Local QSPR Models to Predict the Impact Sensitivity of Nitro Compounds

Apr 2, 2012
Guillaume Fayet
New quantitative structure property relationships (QSPR) have been developed to predict accurately the impact sensitivity of nitro compounds from their molecular structures. Such predictive approaches represent good alternative to complete experimental testing in development process or for...

The US Chemical Safety Board and Inherently Safer Technology

Apr 2, 2012
Manuel R. Gomez
The United State (US) Chemical Safety Board (CSB) was created by the same legislation that mandated the regulation of high hazard industries by the Occupational Safety and Health Administration (OSHA) and Environmental Protection Agency (EPA) under the Process Safety Management (PSM) and the Risk...

Performance, Maintenance and Environmental Benefits of An Integral SCR

Apr 2, 2012
Stephen De Haan
Selective Catalytic Reduction (SCR) involves injecting a NOx reducing chemical, such as aqueous ammonia, into the an exhaust stream in the presence of a catalyst within a specific temperature window of approximately 650°F to 1100°F. To reduce NOx emissions from an ethylene cracker, Chevron Phillips...

Explosion Hazards of Multicomponent Combustible Gas Mixtures

Apr 2, 2012
Alfonso F. Ibarreta
Laminar and turbulent premixed flame burning velocities are two parameters that are sometimes needed to evaluate explosion hazards. There is ample information in the literature regarding the burning velocities of most common ignitable gases and vapors in air. Little information, however, is...

Applying Offline Tools to Reduce On-Site Control Implementation Effort

Apr 2, 2012
Kenneth V. Allsford
Process control engineers are continuously challenged to reduce the effort to commission new advanced regulatory control strategies and/or linear/nonlinear multivariable control applications. Reducing on-site controller identification and tuning and the associated "interference" with process...

Leveraging PSM to Implement Key Elements of a SIS Program

Apr 2, 2012
Dave Grattan
The International Electrotechnical Commission (IEC) 61511 standard, “Functional Safety – Safety Instrumented Systems for the Process Industry Sector", has achieved wide acceptance within the process sector, including chemicals, oil refining, oil and gas production, pulp and paper, and non-nuclear...

Social HAZOP At Oil Refine Industry

Apr 2, 2012
Salvador ¡vila Filho
Introduction Maintenance of process safety in the industry several tools are used such as Risk Analysis, Failure mode and events Analysis (FMEA), a Hazard operability analysis (HAZOP), Quantitative Risk Analysis (QRA), and Mapping Risk. Each tool or technique, if used at the right time can prevent...

Ethylene Plant Optimization: Footprint Replacements & Parallel Compressor Trains

Apr 2, 2012
Keizo Yonedi
There are many important benefits of revamping, rerating and modernizing turbomachinery such as accommodating changes in current operating conditions, improving operating efficiency, and removing process bottlenecks. This paper will focus on the capacity gains realized through equipment replacement...

Ethylene Industry Review

Apr 2, 2012
Mark Wegenka
This paper will focus on ethylene business aspects covering: · Global review of the markets and market outlooks for olefins (ethylene / propylene / butadiene) o Overview of demand drivers o Discussion of investment plans o Review of trade patterns o Analysis of relative cost positions o Discussion...

Prediction of Corrosion in Pipes

Apr 2, 2012
Sally S. Nicola
ABSTRACT AIChE Spring 2012 Meeting Prediction of Corrosion in Pipes Sally Nicola, Victor Carreto, Ray A. Mentzer, M. Sam Mannan Mary Kay O'Connor Process Safety Center, Texas A&M University sally.nicola@neo.tamu.edu Corrosion is one of the most important mechanical integrity issues the...

Avoiding Common PHA Mistakes

Apr 2, 2012
Glenn Young
OSHA's National Emphasis Program (NEP) on refineries has concluded. The two most cited elements of the Process Safety Management standard (PSM - 1910.119) in the NEP were Mechanical Integrity and Process Hazard Analysis (PHA). [1] This session will focus on common problems in PHA and how to avoid...

A Mechanistic and Experimental Study of the Diethyl Ether Oxidation

Apr 2, 2012
Carlo Adamo
A large number of organic compounds, such as ethers, spontaneously form unstable peroxides through a self-propagating process of autoxidation (peroxidation) based on free radical reactions if stored under poor conditions or for over-long period in contact with air. However, few works are focused on...

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