Extreme Process Conditions

Chemical processes can require extremely high or low pressures or temperatures or both in order to work efficiently. These are accompanied by specific, mostly physical hazards. 

---

As already discussed in Section II.C, the demands on combustion catalysts for gas turbines are unusually severe because of the extreme process conditions (operation for at least 1... 

Rosier, H.W. and Yacubowicz, J., Novel membrane materials allow separation tasks under extreme process conditions, Chem. Tech., 26, 200, 1997. 

Avoid extreme process conditions (high pressure, fine vacuum)... 

What are the worst case events It should be noted that not only is the design basis responsible for worst case events but also the presence of materials, extreme process conditions, failure to isolate the system, proximity, installation and commissioning issues, layout, proximity of other section/equipment, etc. could result worst case events. 

Then a special process hazards factor is calculated based on extreme process conditions, storage of large quantities of hazardous materials, corrosion and erosion, fired equipment, and so on. In the exanple, there is a toxic penalty of 0.4 for butadiene. The operation is nitrogen padded but operates in the flammable range, so a penalty of 0.3 applies. There is a 0.06 penalty based on high-pressure operation... 

It is an effective processing stabilizer for PP. Under extreme processing conditions, it may sometimes be used in combination with 2,6-di-tert-butyl-p-cresol. 

Abstract This chapter deals with the corrosion performance of innovative or unconventional magnesium (Mg) alloys. It considers, on the one hand, all Mg alloys that have an unusual microstructure and/or composition mostly as a result of extreme processing conditions and, on the other hand, the innovative concepts that are used to improve the corrosion performance of conventional alloys. The available literature is reviewed and the specific influences of the microstructure and/or composition on corrosion behaviour is discussed and general possibilities to improve corrosion resistance of these alloys are highlighted. 

---