Abstract

Structural changes in resins and asphaltenes in the course of their separate and combined cracking were studied. Cracking was carried out in a batch reactor at 450°C for 2 h. Data on the mass balance of the cracking process and the composition of liquid products were obtained, and the structural-group analysis of resins and asphaltenes was carried out. It was found that condensation reactions dominated on the cracking of both resins and asphaltenes and their mixture; this was reflected in a high yield of solid condensation products. It was established that the direction of thermal transformations changed in the combined cracking of resins and asphaltenes, as evidenced by a lower yield of solid products and structural changes in the molecules of newly formed resins and asphaltenes.

中文翻译：

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热裂解重油树脂和沥青质的结构转变

摘要

研究了树脂和沥青质在单独裂解和联合裂解过程中的结构变化。裂化在间歇式反应器中在 450°C 下进行 2 小时。获得了裂化过程的质量平衡和液体产品组成的数据，并进行了树脂和沥青质的结构组分析。发现缩合反应在树脂和沥青质及其混合物的裂化中占主导地位；这反映在固体缩合产物的高产率上。已经确定，在树脂和沥青质的联合裂解过程中，热转变的方向发生了变化，这可以通过较低的固体产品收率和新形成的树脂和沥青质分子的结构变化来证明。