PYROLYSIS OF AROMATICS AND RELATED HETEROCYCLICS
PYROLYSIS OF AROMATICS AND RELATED HETEROCYCLICS
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DOI：
10.1021/ie50578a044
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发表时间：
1958-01-01
影响因子：
--
通讯作者：
ROBERTS, RM
中科院分区：
文献类型：
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作者：
MADISON, JJ;ROBERTS, RM
石油重质馏分的热裂解通常伴随着生成比起始原料分子量高的产物。在可通过色谱法分离的组分中，芳香族化合物和树脂特别易于发生缩合反应（10）。这里报告的工作是在这些实验室的热裂解研究计划的一部分，并进行了获得的信息的分子结构的特点负责的产品的高分子量的芳烃裂解。43，芳烃和相关杂环化合物的缩合是通过在密封的硼硅酸盐玻璃毛细管安瓿中在没有空气的情况下使它们热解来测量的。用蒽做的实验表明，浓度对冷凝速率有很大的影响。冷凝仅在液相热解中快速，并且由于这个原因，并且因为重质石油原料的实际热裂化在液相中进行，所以几乎所有报道的试验都在液相中进行。所研究的化合物纯度高，数量有限。约100 mg。在每个实验中使用。热处理后，测量了气体、Cj-Cio和重质残渣的产量。在某些实验中，对Cío和重质残渣之间的产物进行了紫外和质谱分析。
X hermal cracking of heavier fractions of petroleum is generally accom-panied by the formation of products of higher molecular weight than the starting material. Of the constituents separable by chromatography, the aromatics and resins are especially prone to undergo condensation reactions (10). The work reported here was part of a program of thermal cracking studies in these laboratories and was undertaken to obtain information on the features of molecular structure responsible for the products of high molecular weight resulting from the cracking of aromatics. The condensation of 43, aromatics and related heterocydics was measured by subjecting them to pyrolysis in sealed borosilicate glass capillary ampoules in the absence of air. Experiments with anthracene showed that concentration had a profound effect on rate of condensation. Condensation was rapid only in liquid phase pyrolysis, and for this reason, and because practical thermal cracking of heavy petroleum stocks is carried out in liquid phase, nearly all the tests reported were carried out in liquid phase. The compounds studied were of high purity, available in limited amounts. Therefore about 100 mg. were used in each experiment. After thermal treat-ment, gas, Cj-Cio, and heavy residue production were measured. In some experiments, ultraviolet and mass spec-trometric analyses were performed on the products between Cío andheavy residue.