In this study, a calcium/carbon composite (Ca/C) was prepared from porous CaO 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.

在本研究中，通过水蒸气溶胀法以多孔 CaO 为原料制备了钙/碳复合材料 (Ca/C)；它的孔隙充满了焦油衍生的碳质材料，以生产高强度和高反应性的焦炭。然后研究了由 Ca/C 复合材料和粘结煤混合制备的焦炭的性质。通过将焦油衍生的碳质材料填充到多孔 Ca 中，溶胀 Ca 中的中孔消失，抗压强度提高。因此，可以通过上述方法制备Ca/C复合物，其中焦油衍生的碳质材料和Ca物质非常接近。当Ca/C复合物掺入粘结煤中时，所得焦炭的强度提高了Ca/C掺混量的50%，这使得生产高强度焦炭成为可能。通过 X 射线衍射检查制备的焦炭的 C 结构，发现通过添加 Ca/C 复合物，原始焦炭的 C 结构几乎没有变化。相反，Ca/C 混合焦表现出较高的 CO₂气化反应活性比原焦煤制得的焦炭高。基于脱矿焦的CO ₂气化反应性试验，可以看出Ca/C混合焦气化反应性的增加取决于Ca的催化作用。因此，这种方法有助于生产高强度和高反应性的焦炭。