Petroleum Chemistry ( IF 1.3 ) Pub Date : 2022-04-22 , DOI: 10.1134/s0965544122020232 A. V. Morozova 1 , G. I. Volkova 1
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Abstract
The present study investigated the effects of ultrasonic treatment and the type of petroleum resins on the composition and properties of precipitates settled out of a 6 wt % petroleum paraffin solution in n-decane. The addition of benzene and alcohol-benzene resins into the ultrasonically treated petroleum paraffin solution was found to reduce the precipitation, elevate the cloud and pour points of the precipitate, and have a major effect on the structure of resultant petroleum paraffin crystals. Furthermore, it was shown that benzene resins, which had a lower concentration of aromatics but contained longer branched aliphatic substituents, were more actively involved in precipitation. In the presence of benzene resins, dendrite crystals with high sedimentation stability were generated. The concentration of alcohol-benzene resins in the precipitates was lower than that of benzene resins. The alcohol-benzene resins present in the precipitates were distinguished by longer aliphatic substituents and a higher number of polar moieties than the starting sample. The resin addition or combined treatment of the tested system enriched the precipitated paraffins with C29H60–C38H78 n-alkanes.
中文翻译：
超声波处理和石油树脂类型对沉淀石油石蜡组成和性能的影响
摘要
本研究调查了超声波处理和石油树脂类型对 6 wt% 石油石蜡溶液中沉淀物的组成和性质的影响。-癸烷。发现在超声处理的石油石蜡溶液中加入苯和醇-苯树脂可以减少沉淀，提高沉淀物的浊点和倾点，并对所得石油石蜡晶体的结构产生重大影响。此外，表明芳烃浓度较低但含有较长支链脂肪族取代基的苯树脂更积极地参与沉淀。在苯树脂的存在下，生成了具有高沉降稳定性的枝晶。沉淀物中醇苯树脂的浓度低于苯树脂。与起始样品相比，沉淀物中存在的醇苯树脂的特点是脂肪族取代基更长，极性部分数量更多。试验体系的树脂添加或联合处理使沉淀石蜡富集了C29 H 60 –C 38 H 78 n-烷烃。
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