Removal of glycerol from biodiesel using multi-stage microfiltration membrane system: industrial scale process simulation

IF 1 Q4 ENGINEERING, CHEMICAL

Chemical Product and Process Modeling Pub Date : 2022-10-03 DOI:10.1515/cppm-2022-0024

S. Kusumocahyo, R. C. Redulla, K. Fulbert, A. A. Iskandar

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引用次数: 0

Abstract

Abstract Biodiesel purification is one of the most important downstream processes in biodiesel industries. The removal of glycerol from crude biodiesel is commonly conducted by an extraction method using water, however this method results in a vast amount of wastewater and needs a lot of energy. In this study, microfiltration membrane was used to remove glycerol from biodiesel, and a process simulation was carried out for an industrial scale biodiesel purification plant using a microfiltration membrane system. The microfiltration experiment using a simulated feed solution of biodiesel containing glycerol and water showed that the membrane process produced purified biodiesel that met the international standards. The result of the process simulation of a multi-stage membrane system showed that the membrane area could be minimized by optimizing the concentration factor of every stage with the aid of a computer program that was written in Phyton programming language with Visual Studio Code. The overall productivity of a single stage membrane system was the same with that of the multi-stage system, however the single stage system required a larger membrane area. To produce 750 m3 day−1 of purified biodiesel, a multi-stage membrane system consisting of 10 membrane modules required a total membrane area of 1515 m2 that was 57% smaller compared to the single stage system consisting of one membrane module. This membrane area reduction was equivalent to a reduction of the total capital cost of 30%. Based on the analysis of the total capital cost, it was found that the optimum number of stages was 4 since it showed a minimum value of the total capital cost with a membrane area of 1620 m2 that was equivalent to the reduction of the total capital cost of 34%. The result of this simulation showed that the multi-stage microfiltration membrane has great potential to replace the conventional method in biodiesel industries.

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多级微滤膜系统去除生物柴油中的甘油:工业规模过程模拟

摘要生物柴油提纯是生物柴油工业中最重要的下游工艺之一。原油生物柴油中甘油的脱除通常采用水萃取法，但该方法产生大量废水，且需要大量能源。本研究采用微滤膜去除生物柴油中的甘油，并对工业规模的生物柴油净化装置进行了微滤膜系统的工艺模拟。用含甘油和水的生物柴油模拟进料液进行微滤实验，结果表明，膜法制备的生物柴油纯度达到国际标准。对多级膜系统的过程模拟结果表明，利用Phyton编程语言和Visual Studio Code编写的计算机程序，通过优化各阶段的浓度因子，可以使膜面积最小。单级膜系统的总体产率与多级膜系统相同，但单级膜系统需要更大的膜面积。为了每天生产750立方米的纯化生物柴油，一个由10个膜模块组成的多级膜系统需要1515平方米的总膜面积，与由一个膜模块组成的单级系统相比，这一面积减少了57%。这种膜面积的减少相当于减少了30%的总投资成本。通过对总投资成本的分析发现，当膜面积为1620 m2时，总投资成本的最小值为4个阶段，相当于总投资成本降低34%。模拟结果表明，多级微滤膜在生物柴油工业中具有取代传统方法的巨大潜力。

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 Product and Process Modeling ENGINEERING, CHEMICAL-

CiteScore

2.10

自引率

11.10%

发文量

期刊介绍： Chemical Product and Process Modeling (CPPM) is a quarterly journal that publishes theoretical and applied research on product and process design modeling, simulation and optimization. Thanks to its international editorial board, the journal assembles the best papers from around the world on to cover the gap between product and process. The journal brings together chemical and process engineering researchers, practitioners, and software developers in a new forum for the international modeling and simulation community. Topics: equation oriented and modular simulation optimization technology for process and materials design, new modeling techniques shortcut modeling and design approaches performance of commercial and in-house simulation and optimization tools challenges faced in industrial product and process simulation and optimization computational fluid dynamics environmental process, food and pharmaceutical modeling topics drawn from the substantial areas of overlap between modeling and mathematics applied to chemical products and processes.