Process modeling and kinetic estimation for desulfurization of diesel fuel using nano - ZnO/Al2O3

IF 1 4区工程技术 Q4 CHEMISTRY, APPLIED

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2023-01-01 DOI:10.2298/ciceq230208020h

Jasim I. Humadi, M. Shihab, Ghazwan S. Ahmed, Mustafa A. Ahmed, Zeyad Abdullah, Shankar Sehgal

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引用次数: 0

Abstract

In the present paper, a gamma alumina (?-Al2O3) loaded zinc oxide (ZnO) nano-catalyst (ZnO/?-Al2O3) has been synthesized and used to accelerate the removal of sulfur compounds from light gas oil by oxidative desulfurization (ODS) process. The synthesized nano-catalysts have been characterized by atomic force microscopy (AFM) and Brunauer-Emmett-Teller (BET). The ODS process has been conducted in batch reactor at various reaction temperatures and batch times varying between 30 to 90?C and 20 to 80 min respectively. DBT removal was highest (93.781%) while using synthesized nano-catalyst (9% ZnO/?-Al2O3) at 90?C and 80 min reaction time. A new mathematical modeling technique has been then performed for the ODS operation under mild experimental conditions in order to evaluate the most appropriate kinetic variables for the new synthesized nano-catalysts based on the obtained experimental data. Simulation results indicate a high good match with experimental observations with less than 5% absolute average error for all runs. The optimization procedure of the process condition displays that > 98% DBT could be eliminated within 200 min, at 87?C in the existence of synthesized nano-catalyst (9% ZnO/?-Al2O3).

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纳米ZnO/Al2O3脱硫柴油过程建模及动力学估计

本文合成了一种负载γ -氧化铝(-Al2O3)的氧化锌(ZnO)纳米催化剂(ZnO/?-Al2O3)，并将其用于氧化脱硫(ODS)法加速轻气油中硫化物的脱除。采用原子力显微镜(AFM)和布鲁诺尔-埃米特-泰勒(BET)对合成的纳米催化剂进行了表征。在间歇式反应器中，在不同的反应温度和间歇时间下进行了ODS工艺。C, 20 ~ 80分钟。合成纳米催化剂(9% ZnO/ -Al2O3)在90℃时，DBT去除率最高(93.781%)。C，反应时间80 min。在温和的实验条件下，对ODS操作进行了新的数学建模，以便根据得到的实验数据评估新合成的纳米催化剂的最合适的动力学变量。仿真结果表明，所有运行的绝对平均误差小于5%，与实验结果吻合良好。工艺条件的优化过程表明，在87℃时，在200 min内可消除> 98% DBT。C在存在下合成纳米催化剂(9% ZnO/?-Al2O3)。

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

Chemical Industry & Chemical Engineering Quarterly CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

3.3 months

期刊介绍： The Journal invites contributions to the following two main areas: • Applied Chemistry dealing with the application of basic chemical sciences to industry • Chemical Engineering dealing with the chemical and biochemical conversion of raw materials into different products as well as the design and operation of plants and equipment. The Journal welcomes contributions focused on: Chemical and Biochemical Engineering [...] Process Systems Engineering[...] Environmental Chemical and Process Engineering[...] Materials Synthesis and Processing[...] Food and Bioproducts Processing[...] Process Technology[...]