Crystallisation of a multiparaffinic wax in normal tetradecane under high pressure

J. Pauly; J.-L. Daridon; J. A. P. Coutinho

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Crystallisation of a multiparaffinic wax in normal tetradecane under high pressure

机译：高压下在正十四烷中多链烷烃蜡的结晶

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摘要

The Wax appearance temperature as well as the amount and composition of wax precipitation were determined as a function of pressure in a synthetic complex system tetracosane + (multiparaffinic commercial wax). Measurements were performed by using two different experimental techniques: A high pressure microscopy apparatus for the solid-liquid phase boundary measurement. A filtration apparatus coupled to a chromatographic analysis of the partially frozen mixtures for the determination of the solid phase behaviour. Experimental results were compared with the values calculated by a predictive model. The influence of pressure on wax formation is shown to be as important as the influence of temperature and the model used can provide an excellent description of the melting behaviour over a wide pressure range.

机译：确定了蜡的出现温度以及蜡沉淀的量和组成与合成复杂体系四氢烷+（多链烷烃商业蜡）中压力的关系。通过使用两种不同的实验技术进行测量：用于固液相边界测量的高压显微镜设备。过滤设备与部分冷冻混合物的色谱分析相连，以确定固相行为。将实验结果与通过预测模型计算的值进行比较。压力对蜡形成的影响与温度的影响一样重要，所使用的模型可以很好地描述宽压力范围内的熔融行为。

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来源
《Fuel》 |2005年第4期|p.453-459|共7页
作者
J. Pauly; J.-L. Daridon; J. A. P. Coutinho;
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作者单位

Laboratoire des Fluides Complexes, Groupe Haute Pression, Universite de Pan, BP 1155, 64013 Pan cedex, France;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类燃料化学工业（总论）;
关键词
Solid-liquid equilibrium; Wax; Paraffin; Pressure;

机译：固液平衡;蜡;石蜡;压力;

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专利

1. Binary phase diagram (C_(14) + C_(25)) and isopleth (C_(14) + wax): comparison of solubility of n-pentacosane and multiparaffinic wax in n-tetradecane [J] . R. Rakotosaona, M. Bouroukba, D. Petitjean Fuel . 2004,第7a8期

机译：二元相图（C_（14）+ C_（25））和等体积线（C_（14）+蜡）：比较正戊烷烷烃和多链烷烃蜡在正十四烷中的溶解度
2. Solubility of an industrial multi-paraffinic wax in the normal tetradecane: phase diagram [J] . V.Chevallier, A.J.Briard, M.Bouroukba Entropie . 2001,第231期

机译：工业多石蜡在正十四烷中的溶解度：相图
3. Isobaric pseudo-binary cross section of mixtures (naphthalene + multiparaffinic wax) [J] . P. M. Ghogomu, R. Rakotosaona, M. Bouroukba Fuel . 2004,第7a8期

机译：混合物的等压假二元横截面（萘+多石蜡）
4. Innovative method to determine the wax content and the wax precipitation temperature simultaneously for crude oils at pipeline pressures [C] . S.Davidsen, A.A.Hamouda SPE international symposium on oilfield chemistry . 1999

机译：同时测定原油在管道压力下的蜡含量和蜡沉淀温度的创新方法
5. A study of preignition chemistry affecting autoignition for normal paraffins and normal olefins at elevated pressures [D] . Hoffman, James Stuart 1991

机译：在高压下影响正构烷烃和正构烯烃自燃的提前点火化学研究
6. Crystallisation of the amorphous ices in the intermediate pressure regime [O] . J. Stern, T. Loerting -1

机译：中压状态下无定形冰的结晶
7. Viscosity and density measurements on liquid n-tetradecane at moderately high pressures [O] . Santos, Tânia V. M., Pereira, Marta F. V., Avelino, Helena M. N. T., 2017

机译：在中等高压下在液体正十四烷上的粘度和密度测量

Crystallisation of a multiparaffinic wax in normal tetradecane under high pressure

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