Temperature and NOx distribution characteristics of coal particles under high-temperature and low-oxygen environments simulating MILD oxy-coal combustion conditions

2022 ◽  
Author(s):  
Chunjing Liu ◽  
Xiude Hu ◽  
Gang Chen ◽  
Jianyi Lu
Keyword(s):  
High Temperature ◽  
Coal Combustion ◽  
Distribution Characteristics ◽  
Low Oxygen ◽  
Coal Particles

BÖHLER H521

Alloy Digest ◽  
2017 ◽  
Vol 66 (12) ◽  
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
High Temperature Strength ◽  
Low Oxygen ◽  
Good Resistance ◽  
Temperature Performance

Abstract Böhler (or Boehler) H521 is an alloy with superior high-temperature strength, excellent toughness, and with good resistance to oxidizing, nitrogenous, and low oxygen gases. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SS-1272. Producer or source: Böhler Edelstahl GmbH.

In-situ reaction between arsenic/selenium and minerals in fly ash at high temperature during blended coal combustion

2020 ◽  
Vol 48 (11) ◽  
pp. 1356-1364
Author(s):  
Jun HAN ◽  
Yang-shuo LIANG ◽  
Bo ZHAO ◽  
Zi-jiang XIONG ◽  
Lin-bo QIN ◽  
...  
Keyword(s):  
High Temperature ◽  
Fly Ash ◽  
Coal Combustion ◽  
In Situ Reaction ◽  
Blended Coal

Precipitation Enhancement of "so Called" Defect-Free Czochralski Silicon Material

2005 ◽  
Vol 108-109 ◽  
pp. 11-16
Author(s):  
Timo Müller ◽  
G. Kissinger ◽  
P. Krottenthaler ◽  
C. Seuring ◽  
R. Wahlich ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermal Treatments ◽  
Low Oxygen ◽  
Zone Formation ◽  
Czochralski Silicon ◽  
Silicon Material ◽  
Free Material ◽  
Precipitation Enhancement

Thermal treatments to enhance precipitation like RTA, ramp anneal and argon anneal were performed on low oxygen 300 mm wafers without vacancy or interstitial agglomerates (“so called” defect-free material). Best results were achieved using high temperature argon anneal leading to a homogenous BMD and denuded zone formation. Furthermore the getter efficiency was positively tested by intentional Ni-contamination. Concepts to overcome the slip danger like improved support geometries and nitrogen codoping were also evaluated and are seen to be beneficial.

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