Study on ultrasound assisted desulfurization of light gas oil using inorganic liquid

IF 0.5 4区环境科学与生态学 Q4 ENGINEERING, ENVIRONMENTAL

Environment Protection Engineering Pub Date : 2019-01-01 DOI:10.37190/epe190401

Luma H. Mahmood, M. Abid, M. I. Mohammed

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引用次数: 2

Abstract

The feasibility of removing sulfur from real light gas oil using inorganic liquids (NaOH, Ca(OH) 2 and HCl) at various concentrations assisted with ultrasonication was investigated in a continuous flow setup. Experimental results showed that at the optimum operating time (40 min), 68% of sulfur was removed under mild conditions using 10 wt. % NaOH. Ultrasonication not only facilitated sulfur removal but also improved gas oil properties by decreasing density and viscosity by 1.40 and 4.42%, respectively, while the cetane number ( CN ) was increased by 7.0%. Solute selectivity ( S ) depending on sulfur mole fraction ( x S ) was correlated using StatPlus 6.7.1.0 software and the following values have been obtained: S = 53.869e –2.552 x S , and S = 29.573 – 41.878 x s for mixtures of 10% Ca(OH) 2 + S-compound + oil, and 10% NaOH + S-compound + oil, respectively. The correlation coefficients ( R 2 ) for the above equations were 0.9813 and 0.9611, respectively. An empirical correlation related to sulfur removal as a function of processing time and solvent concentration was found with R 2 = 0.956. The results of the present work confirmed the feasibility of employing the hybrid method of ultrasonication with using alkaline liquids for sulfur removal.

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无机液体超声辅助轻气油脱硫研究

在连续流动装置中，研究了超声波辅助下不同浓度的无机液体(NaOH、Ca(OH) 2和HCl)脱除实际轻质油中硫的可行性。实验结果表明，在最佳操作时间(40 min)下，使用10 wt. %的NaOH，在温和条件下，硫的去除率为68%。超声处理不仅有利于脱硫，而且改善了气相油的性能，密度和粘度分别降低了1.40%和4.42%，十六烷值(CN)提高了7.0%。利用StatPlus 6.7.1.0软件对硫摩尔分数(x S)的溶质选择性(S)进行了相关性分析，得到了10% Ca(OH) 2 + S-化合物+油和10% NaOH + S-化合物+油的溶质选择性S = 53.869e - 2.552 x S和S = 29.573 - 41.878 x S。上述方程的相关系数(r2)分别为0.9813和0.9611。硫的去除与处理时间和溶剂浓度有经验相关，r2 = 0.956。本工作的结果证实了超声波法与碱性液体法混合脱硫的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environment Protection Engineering 环境科学-工程：环境

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

12 months

期刊介绍： Water purification, wastewater treatment, water reuse, solid waste disposal, gas emission abatement, systems of water and air pollution control, soil remediation.