Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Peter L. Rozelle"'
Publikováno v:
Energies, Vol 8, Iss 11, Pp 12530-12545 (2015)
Ash agglomeration issues that arise due to the sticking of slag-wetted, colliding particles have been creating operational difficulties and monetary losses for the fluidized bed combustion (FBC) industry. Difficulties have been experienced in the det
Externí odkaz:
https://doaj.org/article/63a734de13b5431dbaa3f0a6238dbf2d
Publikováno v:
Powder Technology. 384:368-378
This paper discusses a unique agglomeration modeling methodology developed based on binary collisions to combine the effects of heterogeneity in ash chemistry and granular physics. A simple population balance is defined to find changes in the particl
Publikováno v:
Mineral Processing and Extractive Metallurgy. 128:125-133
This paper discusses the converters for Ni separation, from a historic perspective and with concern as to current needs. The historic development of converter processes, starting from Bessemer to modern processes, is covered and the thermodynamic fun
Publikováno v:
Minerals Engineering. 173:107184
Caustic soda (NaOH) treatment has enhanced rare earth element (REE) extraction from monazite. This study examined the effectiveness of caustic soda for RE-phosphates with lower concentrations for extraction from coal overburden, an alternative feedst
Publikováno v:
Energy & Fuels. 30:3714-3734
This work elucidates the fundamental concepts that are essential to understand fluidized bed agglomeration and reviews the development of tools used to predict it. The process of agglomeration in fluidized bed combustion and gasification systems has
Autor:
Nari Soundarrajan, Peter L. Rozelle, Charles E. Miller, Nuerxida Pulati, Sarma V. Pisupati, Morgan M. Mosser, Mark S. Klima, Aditi B. Khadilkar
Publikováno v:
Metallurgical and Materials Transactions E. 3:6-17
Rare earth elements are known to occur in low concentrations in U.S. coals and coal byproducts. These low concentrations may make rare earth element recovery from these materials unattractive, using only physical separation techniques. However, given
Publikováno v:
Fuel Processing Technology. 137:124-130
Carbonaceous solid–water slurry rheology is greatly affected by the surface properties of the carbonaceous solids used. Slurriability studies showed that, for the same solids loading, viscosities of highly hydrophobic petcoke and bitumen–water sl
Publikováno v:
Fuel. 152:48-57
Agglomeration in fluidized beds begins locally by the sticking of slag–liquid-covered particles. Analysis of the composite fuel is not adequate in predicting agglomeration problems. Separation of the high rank Pittsburgh seam coal into particle cla
Publikováno v:
Powder Technology. 264:216-228
Agglomeration, which leads to growth in particle size over time, is an important phenomenon in several applications that use fluidized bed technologies. Understanding, predicting and controlling this phenomenon are important to avoid operational prob