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Strength and Gasification Reactivity of Coke Prepared by Blending a Ca/C Composite and Coal
| Title: | Strength and Gasification Reactivity of Coke Prepared by Blending a Ca/C Composite and Coal |
| Authors: | Mochizuki, Yuuki Browse this author →KAKEN DB | | Takahashi, Miki Browse this author | | Bud, Javzandolgor Browse this author | | Wang, Yuting Browse this author | | Tsubouchi, Naoto Browse this author →KAKEN DB |
| Keywords: | coke | | calcium | | strength | | reactivity | | gasification | | composite | | carbonaceous material |
| Issue Date: | 15-Aug-2021 |
| Publisher: | 一般社団法人 日本鉄鋼協会 (The Iron and Steel Institute of Japan) |
| Journal Title: | ISIJ international |
| Volume: | 61 |
| Issue: | 8 |
| Start Page: | 2200 |
| End Page: | 2210 |
| Publisher DOI: | 10.2355/isijinternational.ISIJINT-2020-622 |
| Abstract: | In this study, a calcium/carbon composite (Ca/C) was prepared from porous Ca0 by the water vapor swelling method; its pores were filled with tar-derived carbonaceous material to produce high-strength and highly reactive coke. The properties of coke prepared by blending the Ca/C composite and caking-coal were then investigated. The mesopores in the swelling Ca disappeared and the crushing strength was developed by filling tar-derived carbonaceous material into the porous Ca. Thus, a Ca/C composite could be produced by the abovementioned method, wherein the tar-derived carbonaceous material and Ca species were in close proximity. When the Ca/C composite was blended into the caking-coal, the strength of the coke obtained increased by up to 50% of Ca/C blending, which made it possible to produce high-strength coke. On examining the C structure of the prepared coke by X-ray diffraction, that of the original coke was found to be almost unchanged by adding the Ca/C composite. Conversely, the Ca/C blended-coke showed higher CO2 gasification reactivity than the original coke prepared from caking-coal. Based on the CO2 gasification reactivity test of the demineralized coke, it was clear that an increase in the gasification reactivity of the Ca/C blended-coke depended upon the catalytic effect of Ca. Thus, this method helped produce high-strength and highly reactive coke. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/82928 |
| Appears in Collections: | エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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