𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A Study of the Reactivity and Formation of the Unburnt Carbon in CFB Fly Ashes

✍ Scribed by Li, Yong ;Zhang, Jiang-Sheng ;Liu, Qing ;Lu, Ji-Ling ;Yue, Guang-Xi ;Sarofim, Adel F. ;Beér, Janos M. ;Lee, Yam Y. ;Eliasson, Baldur

Publisher
Curtin University of Technology
Year
2008
Tongue
English
Weight
591 KB
Volume
9
Category
Article
ISSN
0969-1855

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A comprehensive study was conducted on the reactivify and the turbostratic structure of the unburnt carbon in the CFB fly ashes. The observed deactivation of the unburnt carbon and the pyrolysis chars prepared under various conditions was studied and found to be due to the combination of the loss of catalytic effect of the minerals and the crystalline growth of carbon. Various forms of morphology of the residual carbon particles were examined under a microscope. Both inertinite and vitrinite seem to be possible sources of the unburnt carbon. The formation of the unburnt carbon in the CFB fly ashes was likely caused by the deactivation of char particles and the insufficient residence time of the corresponding fuel particles.

📜 SIMILAR VOLUMES

Formation and Reactivity of Phosphonium
Formation and Reactivity of Phosphonium Salts in the Vitamin A Series
✍ Dr. H. Freyschlag; Dr. H. Grassner; Dr. A. Nürrenbach; Dr. H. Pommer; Dr. W. Rei 📂 Article 📅 1965 🏛 John Wiley and Sons 🌐 English ⚖ 470 KB

metric electric field produced at the halide nucleus by the metal ion. Rates of reactions such as Cd(H,0)62' + Br-+ Cd(H,O),Brr + H,O can be evaluated. [?5]

On the applicability of cluster models t
On the applicability of cluster models to study the chemical reactivity of carbon nanotubes
✍ Pablo A. Denis; Federico Iribarne 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 189 KB

## Abstract We have performed a comparative study on the reactivity of metallic and semiconducting nanotubes using infinite and finite models. Infinite models were created using periodic boundary conditions while finite ones were constructed by means of hydrogen terminated nanotubes sections. Clust

Studies on the structure and formation m
Studies on the structure and formation mechanism of carbon gel in the carbon black filled polyisoprene rubber composite
✍ N. Kida; M. Ito; F. Yatsuyanagi; H. Kaido 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 440 KB 👁 2 views

The structure and formation mechanism of carbon gel in carbon black filled polyisoprene composites were studied by the pulsed NMR technique. The composites were prepared from a wide range of molecular weights by a solution blend. The carbon gels were extracted from the composites by a solvent-extrac

Studies on the potential of coal fly ash
Studies on the potential of coal fly ash as a heterogeneous catalyst in oxidation of aqueous sodium sulfide solutions with hydrogen peroxide
✍ Durjoy Mallick; Swapan Khanra; Swades K. Chaudhuri 📂 Article 📅 1997 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 380 KB 👁 2 views

The potential of Ñy ash procured form coal-Ðred thermal power plants was studied as a heterogeneous catalyst in the oxidation of aqueous sodium sulÐde solutions with hydrogen peroxide in the temperature range of 303È323 K. The e †ects of various parameters (source of Ñy ash, Ñy ash loading, initial

Formation and reactivity of yttrium—carb
Formation and reactivity of yttrium—carbon cluster ions in the gas phase: Y4C+7-9 and Y3C+7,8
✍ Kan, Steven Z.; Lee, Samuel A.; Freiser, Ben S. 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 684 KB

The formation of yttrium-carbon cluster ions and their reactivities toward CH,Br, H,O and NH, were examined by using a Fourier transform ion cyclotron resonance mass spectrometer equipped with a Smalley supersonic expansion ion source. A broad range of yttrium-carbon cluster ions can be generated. U