Comparative study of the effect of aluminum oleate in CO2 and N2 environments on the aquathermolysis of heavy oil

IF 5.8 2区化学 Q1 CHEMISTRY, ANALYTICAL

Journal of Analytical and Applied Pyrolysis Pub Date : 2025-05-10 DOI:10.1016/j.jaap.2025.107151

Yasser I.I. Abdelsalam , Elena A. Emelyanycheva , Lilia Kh. Galiakhmetova , Gadel F. Baimukhametov , Sergey A. Sitnov , Alexey V. Vakhin

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引用次数: 0

Abstract

Oil-soluble catalysts present promising methods to enhance the efficiency of heavy oil extraction and processing. This study synthesized and characterized an oil-soluble aluminum oleate catalyst and conducted a comparative analysis of its catalytic efficiency in CO₂ and N₂ atmospheres for heavy oil processing via aquathermolysis at 300 °C for 24 hours. The results indicated that the reaction system in a CO₂ atmosphere exhibited, achieving a more substantial reduction in viscosity and asphaltene content compared to the N₂ atmosphere. The upgrading process also improved the H/C ratio and reduced sulfur content, highlighting the effectiveness of aromatization and desulfurization reactions. Infrared spectral analysis data revealed an increase in the (CC/CH₃+CH₂) ratio and a decrease in the (CH₂/CC) and (RSO₃H/CC) ratios compared to heavy oil. These findings open new avenues for developing heavy oil processing technologies using aquathermolysis in the presence of aluminum oleate, significantly enhancing the efficiency of the upgrading process.

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CO2和N2环境下油酸铝对稠油水热裂解影响的对比研究

油溶性催化剂是提高稠油提取和加工效率的有效方法。本研究合成了一种油溶性油酸铝催化剂并对其进行了表征，并对其在CO2和N2气氛下300℃水热裂解处理重油24 小时的催化效率进行了对比分析。结果表明，与N2气氛相比，CO2气氛下的反应体系表现出更大幅度的粘度和沥青质含量降低。该工艺还提高了H/C比，降低了硫含量，突出了芳构化和脱硫反应的有效性。红外光谱分析数据显示，与重油相比，（CC/CH₃+CH₂）比增加了，（CH₂/CC）和（RSO₃H/CC）比降低了。这些发现为开发油酸铝存在下的水热裂解重油处理技术开辟了新的途径，显著提高了升级过程的效率。

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来源期刊

Journal of Analytical and Applied Pyrolysis 化学-分析化学

CiteScore

9.10

自引率

11.70%

发文量

340

审稿时长

44 days

期刊介绍： The Journal of Analytical and Applied Pyrolysis (JAAP) is devoted to the publication of papers dealing with innovative applications of pyrolysis processes, the characterization of products related to pyrolysis reactions, and investigations of reaction mechanism. To be considered by JAAP, a manuscript should present significant progress in these topics. The novelty must be satisfactorily argued in the cover letter. A manuscript with a cover letter to the editor not addressing the novelty is likely to be rejected without review.