The quality science can be used to predict and control coke ash in coking production.
质量科学应用在炼焦生产中，可预测控制焦炭灰分。
As a byproduct of crude refining process petroleum coke features a low ash content, moderate volatility and a high heating value.
石油焦是炼油工艺的副产品，具有低灰分、一定挥发份和高热值的特性。
Based on the analysis of several aspects of coke chemical composition, microstructure of coke, coke ash and some aspects of analysis, the aim is to enhance the quality of coke.
本文通过对焦炭化学成分、焦炭显微结构、焦炭灰分等几方面进行分析，从而提高焦炭质量。
First we had to clear the ash and coke out of the boiler.
首先我们得清除锅炉里的炉灰和焦炭。
In this paper, low ash content anthracite was taken as the investigated subject, thermolysis process of anthracite and petroleum coke were investigated at the same time.
本文以低灰无烟煤为研究对象，对无烟煤和石油焦的热解进行了考察。
The paper studied the factors affected to strength of coke with coal quality, coal petrology, coal ash content and others.
从煤质、煤岩、煤灰成分等方面研究了影响焦炭强度的因素。
The paper studied the factors affected to strength of coke with coal quality, coal petrology, coal ash content and others.
从煤质、煤岩、煤灰成分等方面研究了影响焦炭强度的因素。
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