Life cycle assessment of biodiesel production utilising waste date seed oil and a novel magnetic catalyst: A circular bioeconomy approach

Al-Mawali Kamla S.; Osman Ahmed I; Al-Muhtaseb Alaa H.; Mehta Neha; Jamil Farrukh; Mjalli Farouk; Vakili-Nezhaad G. Reza; Rooney David W.

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Life cycle assessment of biodiesel production utilising waste date seed oil and a novel magnetic catalyst: A circular bioeconomy approach

机译：利用废水日籽油和新型磁催化剂的生物柴油生产生命周期评估：循环生物经济方法

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The utilisation of waste biomass in biodiesel production as a sustainable energy source can lead to the incorporation of circular bioeconomy principles in the current economic systems. Herein, we synthesised a magnetically recyclable solid acid catalyst for the esterification of waste date seed oil. The catalysts possessed superparamagnetic behaviour and high saturation magnetisation, allowing them to be easily separated from the reaction mixture using an external magnetic filed. The esterification reaction was modelled and optimised by RSM (Design Expert program) and parametric study. The magnetic solid acid catalyst showed high catalytic performance with 91.4% biodiesel yield with optimum conditions of residence time, catalyst loading and temperature of 47 min, 1.5 wt %, and 55 degrees C, respectively. The solid catalyst was easily recovered by simple magnetic decantation and reused five consecutive times without significant degradation in its catalytic activity. This approach of using waste date seed coupled with cheap magnetic solid acid catalyst has the potential to create more sustainable and cost-effective catalytic systems for biodiesel production. This will complete the full cycle of waste date seed sustainably and facilitate the development of circular bioeconomy. The LCA results by using CML-IA baseline V3.06 midpoint indicators, for 1000 kg of biodiesel production showed the cumulative abiotic depletion of fossil resources over all the processes as 19037 MJ, global warming potential as 1114 kg CO2 eq, and human health toxicity as 633 kg 1,4-DB eq (kg 1,4 dichlorobenzene equivalent). The highest damage in all categories was observed during catalyst preparation, and reuse, which was also confirmed in endpoint LCA findings performed using ReCiPe 2016 Endpoint (E) V1.04. (C) 2021 Elsevier Ltd. All rights reserved.

机译：作为可持续能源的生物柴油生产中废泡生物量的利用可能导致当前经济系统中的循环生物经济原则纳入。在此，我们合成用于废水日籽油的酯化的磁性可回收固体酸催化剂。催化剂具有超顺磁性行为和高饱和磁化，允许它们使用外部磁性归档容易地与反应混合物分离。通过RSM（设计专家计划）和参数研究进行建模和优化酯化反应。磁性固体酸催化剂显示出高催化性能，生物柴油产率为91.4％，分别具有最佳停留时间条件，催化剂负载和47分钟的温度，1.5wt％和55℃。通过简单的磁性倾析容易地回收固体催化剂，并在其催化活性中连续五次重复使用而没有显着降解。使用废水日种子与廉价磁性固体酸催化剂相结合的这种方法具有促进用于生物柴油生产的更可持续和经济高效的催化系统。这将完成废物日期种子的完整周期，并促进循环生物经济的发展。通过使用CML-IA基线V3.06中点指标的LCA结果，为1000公斤的生物柴油生产显示，在所有过程中累积非生物耗尽化石资源，为19037 MJ，全球变暖潜力为1114公斤CO2 EQ，人体健康毒性作为633kg 1,4-db eq（kg 1,4二氯苯当量）。在催化剂制备期间观察到所有类别的最高损伤，并在使用配方2016终点（e）v1.04进行的终点LCA发现中也证实的重用。（c）2021 elestvier有限公司保留所有权利。

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来源
《Renewable energy》 |2021年第6期|832-846|共15页
作者
Al-Mawali Kamla S.; Osman Ahmed I; Al-Muhtaseb Alaa H.; Mehta Neha; Jamil Farrukh; Mjalli Farouk; Vakili-Nezhaad G. Reza; Rooney David W.;
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作者单位

Sultan Qaboos Univ Coll Engn Dept Petr & Chem Engn Muscat Oman;

Queens Univ Belfast Sch Chem & Chem Engn Belfast BT9 5AG Antrim North Ireland|South Valley Univ Fac Sci Qena Chem Dept Nanocomposite Catalysts Lab Qena 83523 Egypt;

Sultan Qaboos Univ Coll Engn Dept Petr & Chem Engn Muscat Oman;

Queens Univ Belfast Sch Mech & Aerosp Engn Belfast BT9 5AH Antrim North Ireland;

Sultan Qaboos Univ Coll Engn Dept Petr & Chem Engn Muscat Oman|COMSATS Univ Islamabad Dept Chem Engn Lahore Pakistan;

Sultan Qaboos Univ Coll Engn Dept Petr & Chem Engn Muscat Oman;

Sultan Qaboos Univ Coll Engn Dept Petr & Chem Engn Muscat Oman;

Queens Univ Belfast Sch Chem & Chem Engn Belfast BT9 5AG Antrim North Ireland;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Biodiesel; Magnetic catalyst; Date seed oil; Life cycle assessment; Parametric study; Circular bioeconomy;

机译：生物柴油;磁性催化剂;日期种子油;生命周期评估;参数学研究;循环生物经济;

Life cycle assessment of biodiesel production utilising waste date seed oil and a novel magnetic catalyst: A circular bioeconomy approach

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