Eco-efficiency Level of Production Process of Waste Cooking Oil to be Biodiesel with Life Cycle Assessment

Hartini, Sri; Puspitasari, Diana; Aisy, Nabila Roudhatul; Widharto, Yusuf

doi:10.1051/e3sconf/202020210004

Cited by 16 publications

(20 citation statements)

References 25 publications

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“…Although crude glycerin can be purified into valuable chemical for use in the pharmaceutical, food and cosmetics industries, the purification process is rather expensive and inefficient due to a wide variety of impurities it often contains [62]. The glycerin market on the other hand is well saturated and its disposal at landfills is environmentally unsustainable [63,64]. Thus, the price of glycerin has continued to decline making it economically attractive for use as a binder in biomass briquette production.…”

Section: Glycerolmentioning

confidence: 99%

A Review of Biomass Briquette Binders and Quality Parameters

2022

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The adverse effect of the use of fossil fuels on the environment and public health has given rise to a sustained renewable energy research and development. An important component of global renewable energy mix is the use of loose biomass, including agricultural and forestry residues, to produce solid fuels in the form of briquettes. Briquettes play a significant role in bioenergy mix in developing and developed countries. The production of biomass briquettes often entails the collection, transportation, storage, processing, and compaction of loose biomass that meet specific quality parameters. The densification process often involves the addition of binders to improve the cohesive strength of the briquette material. This paper surveys recent literature from 2012 to 2021 to establish the current state of research on the use of binders in briquette production; and reviews current parameters used in assessing the quality of biomass briquettes with focus on mechanical and handling properties. While a number of quality parameters were identified, their assessment methodologies varied widely in the literature, thus necessitating standardization for comparability purposes. The review also includes factors affecting the wide production and adoption of biomass briquettes in most developing economies and proposes ways of overcoming the bottlenecks.

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Section: Glycerolmentioning

confidence: 99%

A Review of Biomass Briquette Binders and Quality Parameters

2022

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“…Moreover, biodiesel does not contain aromatic hydrocarbons, and the content of sulfur is lower than diesel. Furthermore, the content of cetane is lower than diesel, improving engine combustion performance [58][59][60]. Here, we proposed the production of biodiesel from WCO and its applicability in diesel blend.…”

Section: Discussionmentioning

confidence: 99%

Biodiesel and Bioplastic Production from Waste-Cooking-Oil Transesterification: An Environmentally Friendly Approach

et al. 2022

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Alternative sources of fuel have been a concern in the last few decades. The growth of urbanization and industrialization will lead to the exhaustion of fossil fuels, attracting studies on alternative routes. The main aim of this study was to produce biodiesel from waste cooking oil (WCO) by methyl transesterification using sodium hydroxide as a catalyst. For this, the physicochemical parameters of biodiesel were studied in triplicate (density, acidity, saponification, viscosity, corrosiveness to copper, visual appearance, and cloud point). An analysis by thin layer chromatography and infrared spectrometry was also performed. The increase in yield (83.3%) was directly proportional to the increase in the catalyst (0.22 g of NaOH). The infrared absorption spectra of WCO and biodiesel showed the presence of common and singular bands of each material. Furthermore, a simple and low-cost mechanism was proposed for purifying glycerol. The spectra of glycerol versus purified glycerin showed that the glycerin produced was pure, being used in the formulation of bioplastic. The product was checked for biodegradation and photodegradation, with incredible soil-degradation times of 180 days and photodegradation of only 60 days. In this way, biodiesel production from WCO showed environmentally friendly proposals and applicability. As the next steps, it is necessary to test the biodiesel produced in combustion engines and improve the bioplastic production, including a spectroscopic characterization and extensive biodegradation testing.

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“…Just in Jakarta, 1.8 million tonnes of oil waste were disposed into the soil and gutters each week. 87 This number provides economy of scale if their derivatives (fatty acid and glycerol) can be used for production of valuable compounds. With their hydrophobic nature, fatty acids can serve as precursors in many enzymatic reactions to generate fuels or chemicals which traditionally can only be derived from petroleum.…”

Section: Biobased Feedstocks Derived From Organic and Digested Wastesmentioning

confidence: 99%

“…Normally, oil waste alone such as waste cooking oil is estimated to be disposed of in water and land (as biomass waste) in enormous amounts. Just in Jakarta, 1.8 million tonnes of oil waste were disposed into the soil and gutters each week . This number provides economy of scale if their derivatives (fatty acid and glycerol) can be used for production of valuable compounds.…”

Section: Introductionmentioning

confidence: 99%

Enzymes, In Vivo Biocatalysis, and Metabolic Engineering for Enabling a Circular Economy and Sustainability

et al. 2021

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Since the industrial revolution, the rapid growth and development of global industries have depended largely upon the utilization of coal-derived chemicals, and more recently, the utilization of petroleum-based chemicals. These developments have followed a linear economy model (produce, consume, and dispose). As the world is facing a serious threat from the climate change crisis, a more sustainable solution for manufacturing, i.e., circular economy in which waste from the same or different industries can be used as feedstocks or resources for production offers an attractive industrial/business model. In nature, biological systems, i.e., microorganisms routinely use their enzymes and metabolic pathways to convert organic and inorganic wastes to synthesize biochemicals and energy required for their growth. Therefore, an understanding of how selected enzymes convert biobased feedstocks into special (bio)chemicals serves as an important basis from which to build on for applications in biocatalysis, metabolic engineering, and synthetic biology to enable biobased processes that are greener and cleaner for the environment. This review article highlights the current state of knowledge regarding the enzymatic reactions used in converting biobased wastes (lignocellulosic biomass, sugar, phenolic acid, triglyceride, fatty acid, and glycerol) and greenhouse gases (CO 2 and CH 4 ) into value-added products and discusses the current progress made in their metabolic engineering. The commercial aspects and life cycle assessment of products from enzymatic and metabolic engineering are also discussed. Continued development in the field of metabolic engineering would offer diversified solutions which are sustainable and renewable for manufacturing valuable chemicals.

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Eco-efficiency Level of Production Process of Waste Cooking Oil to be Biodiesel with Life Cycle Assessment

Cited by 16 publications

References 25 publications

A Review of Biomass Briquette Binders and Quality Parameters

A Review of Biomass Briquette Binders and Quality Parameters

Biodiesel and Bioplastic Production from Waste-Cooking-Oil Transesterification: An Environmentally Friendly Approach

Enzymes, In Vivo Biocatalysis, and Metabolic Engineering for Enabling a Circular Economy and Sustainability

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