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453 Newest Publications in process safety progress


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An exposure assessment approach for potential thermal degradation compounds in 2‐phase immersion cooling operations

08-Jan-2018 | Phillip Tuma, Jay Schulz, Jason Bonk, Robert Roy, Michael DeLorme, Perry Logan, Process Safety Progress, 2018

Passive 2‐phase immersion cooling (P2PIC) is a technique for cooling computers with the potential to reduce capital and operating costs within datacenters. Computers cooled by P2PIC are submerged in a fluorochemical liquid that boils (hence 2‐phase) from the heat generating components. Although ...


Fracture toughness and brittle failure: A pressure vessel case study

21-Dec-2017 | John Puryear, Guillermo Ramirez, Clint Botard, Kollin Kenady, Process Safety Progress, 2017

That the manufacturing and fabrication process can introduce low fracture toughness and cause brittle failure in steel has been documented in well‐known studies. These include failure of Liberty ships during World War II and, more recently, weld failures in steel moment frames during the 1994 ...


Inherently safer design for synthesis of 3‐methylpyridine‐N‐oxide

18-Dec-2017 | Min Hua, Min Qi, Xuhai Pan, Wendi Yu, Lu Zhang, Juncheng Jiang, Process Safety Progress, 2017

Alkyl pyridine‐N‐oxide can decompose to pyridine which readily leads to explosion accident in air. Therefore, risk analysis and inherently safer design are necessary for this process. This article aims to study the thermal hazards of the process of 3‐methylpyridine oxidized by hydrogen peroxide, ...


Major process accidents: Their characteristics, assessment, and management of the associated risks

21-Sep-2017 | Ming Yang, Process Safety Progress, 2017

Major process accidents continue to occur with the advancement of modern process systems. Major process accidents should not be viewed as Black Swan and can be predicted and prevented. This article investigates the characteristics of process accidents. Based on which, a method for the diagnosis ...


Failure analysis of a twin‐screw pump shaft

31-Aug-2017 | Shugen Xu, Yuan Zhang, Chong Wang, Zhiwei Sun, Shengkun Wang, Yanling Zhao, Process Safety Progress, 2017

A failure analysis was performed on a fractured twin‐screw pump shaft. Through the analysis of the macromorphology and microstructure of the fracture, the analysis of the chemical compositions of shaft material, the metallographic test of the specimens cut from the fracture, the investigation of ...


CCPS project 246: Second edition of the guidelines for siting and layout of facilities

31-Aug-2017 | Bruce K. Vaughen, Martin Timm, Donald Connolley, Charles Cowley, Process Safety Progress, 2017

The second edition of the Center for Chemical Process Safety (CCPS) Guidelines for Siting and Layout of Facilities (2017) has been written to address the many developments in the last decade which have improved how companies survey and select new sites, evaluate acquisitions, or expand their ...


Thermal hazard investigation of a pharmaceutical intermediate

12-Aug-2017 | Ralph Zhao, Dan Muzzio, Tom Vickery, Elizabeth Fisher, Laura Artino, Jay Yin, Joe Hinksmon, Adam Fine, Process Safety Progress, 2017

During the process development of a pharmaceutical advanced intermediate, new chemistry using an aqueous workup resulted in the discovery of a new hydrated crystal form of this intermediate. This hydrated crystal form showed thermal instability at a relatively low temperature compared to the ...


Integrating Human Factors (HF) into a Process Safety Management System (PSMS)

31-Jul-2017 | Stephen C. Theophilus, Chizaram D. Nwankwo, Elijah Acquah‐Andoh, Enobong Bassey, Udeme Umoren, Process Safety Progress, 2017

Human factors and process safety management (PSM) have become key factors in preventing exposure to both hazardous materials and major accidents. Therefore, comprehensive process safety management is required to address all aspects of human factors. Currently, there are several‐process safety ...


Three tools to visualize and prevent boilers and furnaces firebox explosions

29-Jul-2017 | Roberto Fernández Blanco, Process Safety Progress, 2017

Explosive incidents with harmful consequences continue to occur in boilers and furnaces (heaters) where fossil fuels are burned. Proper designs, proper maintenance, and proper operating procedures have been developed, backed by standards, codes, guidelines, and recommended practices. However, ...


Reducing the attractiveness of chemical plants to terrorist attacks: Dehorning rhinos

25-Jul-2017 | Nima Khakzad, Process Safety Progress, 2017

The terrorist attacks to two French chemical facilities in June and July 2015 raised the flag about the attractiveness of chemical plants to terrorist groups and the imminent risk of similar attacks in western countries. Although the 9/11 terrorist attacks in the US put the security of chemical ...


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