2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing
| Editors: | Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 480 pages |
| ISBN: | 978-1-987820-46-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Degradation behavior of coke reacting with H2O and CO2 at high temperature
ping wang1; Long Honging2; jiaxin Li3;1, maanshan, China; 2ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY, Maanshan, China; 3ANHUI UNIVERSITY OF TECHNOLOGY, NORTHEASTERN UNIVERSITY, maanshan, China;
Type of Paper: Regular
Id Paper: 35
Topic: 3
Abstract:
The degradation behaviors of coke which reacts with CO2 and H2O were explored in our gas-solid reacting apparatus. It was observed that the temperature loss of coke with H2O in initial and violent solution were about 37¡æ and 125¡æ lower than that with CO2 respectively. The gasification rate of coke with H2O was about 1.27-3.16 times faster than that with CO2. But the difference of gasification rate will reduce with the lower temperature. The coke strength after reaction (CSR) with H2O was lower than with CO2 at 950¡æ-1100¡æ, but higher at 1200¡æ. The coke¡¯s apparent porosity and changing rate after reacting were both smaller with H2O than with CO2. It is mainly due to the reaction that occurred closer to the coke particle surface with H2O than with CO2 and making large pores appeared and pore wall eroded seriously at the coke particle surface.