In-Line Flame Arrester Application Limits and Matrix Concept for Process Plant Safety from Flash Back of Thermal Combustion Units

2019 ◽  
Author(s):  
Michael Davies ◽  
Thomas Heidermann
Keyword(s):  
Plant Safety ◽  
Flame Arrester ◽  
Process Plant ◽  
Thermal Combustion

scholarly journals Resilience of Process Plant: What, Why, and How Resilience Can Improve Safety and Sustainability

2020 ◽  
Vol 12 (15) ◽  
pp. 6152 ◽  
Author(s):  
Hans Pasman ◽  
Kedar Kottawar ◽  
Prerna Jain
Keyword(s):  
Risk Assessment ◽  
Oil And Gas ◽  
Research Work ◽  
Business Environment ◽  
Warning Signals ◽  
Plant Safety ◽  
Chemical Manufacturing ◽  
Process Plant ◽  
Process Plants ◽  
Proactive Measures

Resilience is the ability to restore performance after sustaining serious damage by a usually unexpected threat. This paper analyzes resilience of process plants as there are oil and gas refining, chemical manufacturing, power-producing plants, and many more. Over the years, plant safety has shifted from retrospective to proactive measures. Safety is important from many points of view, such as protection of workforce and nearby population, but certainly too from an economical and sustainability aspect. Pro-action requires predictive insight of what in the process can go wrong because of internal or external disruptive disturbance. Over the years, to that end, much effort was spent developing risk assessment methods and management. However, risk assessment has proven to be fallible because of various uncertainties and not the least by overlooked or unknown threats. To protect against those upsetting threats, measures can be taken up to a certain limit. These start in designing error-tolerant equipment able to be receptive to early warning signals during operations, responding to those with ‘plasticity’ of mind (that is, an organization and its leadership especially able to think ‘outside-the box’ for coping with unexpected situations), and finally, to deploy effective emergency response and able to recover from damage quickly. The paper presents a summary/review of nearly a decade of research work at the Mary Kay O’Connor Process Safety Center at the Texas A&M University to develop the concept and the techniques to realize a resilient plant, so far with a focus on chemical plant. It is, however, still a ‘work-in-progress’; potential is large. Besides the conceptual details, cases are presented that show how human and technical factors, combined in a socio-technical system, can lead to a broader plant safety insight enabling more effective risk control and increased resilience. These cases have up to now only considered warning signals and possible management action, while still limited to internal threats. Hence, aspects of equipment design and recovery should be further considered, also in the light of the dynamics of present-day business environment.

History of the process plant safety symposium: 20 years, 1992-2012

2012 ◽  
Vol 31 (3) ◽  
pp. 200-202 ◽  
Author(s):  
Victor H. Edwards ◽  
William F. Early ◽  
G. Jeff Fleming ◽  
Ron Darby ◽  
Joseph Cramer ◽  
...  
Keyword(s):  
Plant Safety ◽  
Process Plant ◽  
History Of

Reducing the Ecotoxicity of Pesticide Polluted Waters by Electrochemical Methods

2019 ◽  
Vol 70 (5) ◽  
pp. 1574-1578
Author(s):  
Cristian Neamtu ◽  
Bogdan Tutunaru ◽  
Adriana Samide ◽  
Alexandru Popescu
Keyword(s):  
Nitrogen Atmosphere ◽  
Constant Current ◽  
Polluted Water ◽  
Gaseous Nitrogen ◽  
Constant Current Density ◽  
Electrochemical Approach ◽  
Saline Waters ◽  
Thermal Combustion ◽  
Polluted Waters ◽  
Thermal Stability Of

Electrochlorination constitutes an electrochemical approach for the treatment of pesticide-containing wastewaters. This study evaluated the electrochemical and thermal stability of four pesticides and the efficiency of electrochlorination to remove and detoxify the simulated polluted water with: Acetamiprid, Emamectin, Imidacloprid and Propineb. This study reports the experimental results obtained by cyclic voltammetry and electrolysis at constant current density in association with UV-Vis spectrophotometry. In saline waters this pesticides are electrochemical active and anodic peaks are registered in the corresponding voltammograms. After thermal combustion, in a gaseous nitrogen atmosphere, a residue ranging from 15 to 45 % is observed at 500 �C.

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