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Effect of Dicumyl Peroxide on Changes in the Molecular Structure of Asphaltenes in the Course of Cracking of High-Sulfur Tars
Solid Fuel Chemistry ( IF 0.7 ) Pub Date : 2022-04-20 , DOI: 10.3103/s0361521922020021
A. V. Goncharov , E. B. Krivtsov , S. S. Yurlov

Abstract

The results of a study of asphaltenes isolated from liquid cracking products (at a temperature of 500°C) of high-sulfur tars with an additive of dicumyl peroxide are presented. Characteristic changes in the composition of cracking products depending on the amount of the additive were found. Changes in the structural-group parameters of tar asphaltenes in the course of cracking were determined using 1H NMR-spectroscopic data, elemental composition, and molecular weight measurements. Asphaltene molecules became more condensed, and they were characterized by an increased concentration of aromatic fragments and a decrease in the number of naphthenic units and the length of aliphatic structures.



中文翻译:

过氧化二异丙苯对高硫焦油裂解过程中沥青质分子结构变化的影响

摘要

介绍了从含有过氧化二异丙苯的添加剂的高硫焦油的液体裂解产物(温度为 500°C)中分离出的沥青质的研究结果。发现了取决于添加剂的量的裂解产物组成的特征变化。使用1 H NMR 光谱数据、元素组成和分子量测量结果确定了裂化过程中焦油沥青质的结构组参数的变化。沥青质分子变得更加凝聚,其特征是芳香族片段浓度增加,环烷单元数和脂肪族结构长度减少。

更新日期:2022-04-21
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