Application of Coal Tar Products and Evaluation of the Stability of Residual Marine Fuels

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2023-12-06 DOI:10.1134/S0965544123080030

Mingrui Liu, Haibo Wang

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Abstract

Although the quality of coal tar does not meet the demands for blended marine fuel, the properties of its components after processing are improved, and they can be considered as inexpensive blending components. Three types of coal tar products including light coal tar I, light coal tar II, and hydrogenated coal tar have been obtained and used in production of residual marine fuels. To minimize costs, a linear optimization method has been used, and all properties of the resulting products have met the required criteria. In addition, a novel analytical method was used to characterize the fuel stability. The analysis of a hydrocarbon composition and a mechanism of interaction between the resin and asphaltene have shown the main coal tar components affecting fuel oil stability are polycyclic aromatic hydrocarbons (PAHs) and resin. A condensation of PAHs and resin into asphaltene and an increasing complexity of asphaltene structure causes deposition of oil products under heating. Hydrogenation is able to effectively reduce the PAH content and the volume of formation of massive asphaltenes thus preventing fuel flocculation and deposition during aging in fuel tanks.

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煤焦油产品的应用和残余海洋燃料稳定性评估

摘要虽然煤焦油的质量不符合船用混合燃料的要求，但其组分经加工后性能得到改善，可作为廉价的混合组分。目前已获得三种煤焦油产品，包括轻质煤焦油 I、轻质煤焦油 II 和加氢煤焦油，并将其用于生产船用残余燃料。为了最大限度地降低成本，我们采用了线性优化方法，所得产品的所有特性均符合所需标准。此外，还采用了一种新的分析方法来确定燃料的稳定性。对碳氢化合物成分以及树脂和沥青质之间相互作用机理的分析表明，影响燃料油稳定性的主要煤焦油成分是多环芳烃（PAHs）和树脂。多环芳烃和树脂凝结成沥青质，沥青质结构越来越复杂，导致加热时油品沉积。加氢处理可有效降低多环芳烃含量和大量沥青质的形成量，从而防止燃料在油箱中老化时发生絮凝和沉积。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.