| 摘要 |
<p>TITLE: A PROCESS FOR IMPROVING COKE YIELD IN NON-RECOVERY COKE MANUFACTURE. The present invention relates to a process for improving coke yield in non-recovery coke manufacture involving a sacrificial barrier layer of fly ash to reduce oxidation/burning losses of coke. Importantly, in the process according to the present invention, carbon in fly ash burns at high temperature inside the oven; thereby the fly ash softens, fuses and subsequently forms an impervious layer covering the coal cake. This layer acts as a barrier, preventing the coke beneath from being oxidized by acting as a sacrificial layer and whereby reducing oxidation of carbon present in coke. Thus, applying a barrier layer of fly ash onto the coal cake leads to a significant reduction in the burning loss with a corresponding improvement in coke yield to 35.66 tons/oven compared to an average of 33.83 tons/oven by conventional coke making process .</p> |
