Solid Fuel Chemistry ( IF 0.8 ) Pub Date : 2022-04-20 , DOI: 10.3103/s0361521922020082 G. S. Pevneva 1 , N. G. Voronetskaya 1 , N. N. Sviridenko 1
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Abstract
The influence of the amount of asphaltenes on the yield of distillate fractions in a cracking process and on the structural transformations of asphaltenes under thermal treatment was studied. Model mixtures with asphaltene concentrations of 0, 8, 12, and 16% were the test materials. Cracking was carried out in autoclave reactors at a temperature of 450°C for 2 h. It was found that, in the thermal cracking of mixtures with different amounts of asphaltenes, the yield of distillate fractions IBP-360°C increased with the asphaltene content. A maximum yield of these products was achieved upon the cracking of a model mixture with 8% asphaltenes; it increases by a factor of 1.7, as compared to that in the initial mixture. Secondary asphaltenes decreased in size and became more aromatic with much fewer alkyl substituents.
中文翻译：
沥青质-马洛烯模型混合物开裂后沥青质的结构变化：
摘要
研究了沥青质含量对裂化过程中馏分馏分收率和热处理下沥青质结构转变的影响。沥青质浓度分别为 0、8、12 和 16% 的模型混合物是试验材料。在高压釜反应器中在 450°C 的温度下进行裂解 2 小时。研究发现，在沥青质含量不同的混合物的热裂解中，馏分馏分 IBP-360°C 的收率随着沥青质含量的增加而增加。这些产品的最大产率是在使用 8% 沥青质的模型混合物裂解时实现的；与初始混合物相比，它增加了 1.7 倍。次生沥青质尺寸减小，并且在烷基取代基少得多的情况下变得更加芳香。
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