改质沥青是指煤焦油或普通煤沥青经深度加工所得的沥青。常温下为黑色固体，在一定的 温度下凝固成很脆的具有贝壳状断口的固体，呈玻璃相；没有一定的熔点，在一定的熔点范围内熔化，凝固时没有热效应。沥青组分极为复杂，大多数为三环以上的芳香族烃类，还有含氧、氮和硫等元素的杂环化合物和少量高分子炭素物质。
该技术可提高现有改质沥青生产设备对中温沥青原料的适应范围。
The adaptability of the current equipments for production of the modified bitumen to the medium temperature bitumen material has been improved by application of this technology.
本文对国内某钢铁公司焦化厂所用的非焦煤配改质沥青的分解过程进行了动力学研究。
This article deals with the kinetics of thermal decomposition process of non-coking coal with modified coal tar pitch used in a steel company.
选择石油改质沥青作炼焦煤料的添加剂，分别以新日铁和住友配型煤炼焦工艺进行了炼焦试验。
Asphalt is selected as coking charge additive in the coking tests carried out respectively as per NSC and Sumitomo briquette coal blending processes.
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