Process assessment of renewable-based acrylic acid production from glycerol valorisation

Sandid, Abdelfatah Marni; Esteban, Jesús; D’Agostino, Carmine; Spallina, Vincenzo

doi:10.1016/j.jclepro.2023.138127

Cited by 5 publications

(2 citation statements)

References 25 publications

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“…The final cost of purified glycerol is 19.2 €/ton. Such cost makes waste glycerol very competitive in terms of energy feedstock for other processes such as reforming/gasification or other added value chemicals or livestock feeding …”

Section: Resultsmentioning

confidence: 99%

Experimental Scale-Up and Technoeconomic Assessment of Low-Grade Glycerol Purification from Waste-Based Biorefinery

Attarbachi,

Kingsley,

Spallina

2024

Ind. Eng. Chem. Res.

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The purification of waste-derived crude glycerol to the 2000 g scale is presented to provide a consolidated proof of concept. Starting from unprecedented low-quality glycerol from a second-generation biodiesel plant, currently disposed of at cost, a series of physiochemical steps are implemented to improve glycerol purity and recovery under relevant conditions. The study is carried out on two samples with initial purities of 38–57 wt % and ash contents of up to 16 wt %. Under the optimal process conditions, glycerol exhibits a remarkable increase to 85 wt % purity while preserving the overall glycerol recovery of the process of up to 71%. Among different purification steps, neutralization contributes to increasing the purity to 69 wt % while the remaining water and methanol evaporation have further increased the purity to >80 wt %. The adsorption step shows the smallest increase in glycerol purity despite it being required to decolorize and deodorize the final product. The developed process is further designed for industrial-scale application using Aspen Plus for a plant size of 1630 kg/h of purified glycerol which could achieve 82 wt % final purity and a maximum recovery of 77%. In addition, the process yields 315 kg/h of salable byproduct salts suitable as fertilizer and an overall CO2 emission of 0.70 ton per ton of purified glycerol mainly due to the unrecovered feedstock and solvent combustion. As a result, the proposed process implementation could generate positive revenues with a cost of the final products of €19.2 per ton.

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Section: Resultsmentioning

confidence: 99%

Experimental Scale-Up and Technoeconomic Assessment of Low-Grade Glycerol Purification from Waste-Based Biorefinery

Attarbachi,

Kingsley,

Spallina

2024

Ind. Eng. Chem. Res.

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“…One such source is biodiesel, which is seen as a renewable and sustainable energy resource that creates green jobs and improves the environment. In the transesterification process of biodiesel, ∼10 wt % glycerol is produced as a byproduct waste for every 90 wt % biodiesel production , As per the norms of the Indian government’s national biodiesel policy, until 2026, a significant amount of energy can be produced from the biodiesel industry, posing no negative impacts on human health or the environment. , With the continuous expansion of biodiesel production worldwide, an excess of glycerol is supposed to accumulate. Approximately 3.2 billion liters will be reached by 2025 …”

Section: Introductionmentioning

confidence: 99%

Synthesis and E-metric Studies of an Economically Viable Heterogeneous Acid Catalyst for Production and Upscaling of Solketal

Maurya,

Sharma

2024

Energy Fuels

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Continuous upsurge of biodiesel production globally makes valorizing waste glycerol from the biodiesel industry the best option to create a new market and enhance the durability of biodiesel production. Solketal, a fuel additive that can be synthesized from biowaste glycerol, is a highly desirable chemical in various industries. This work synthesized a robust and economically viable solid heterogeneous acid catalyst SO 4 2− / CoAl 2 O 4 -TiO 2 . It is very efficient for solketal synthesis under conventional heating. Various reactions affecting parameters, viz., 1:10 molar ratio of glycerol to acetone, 58 °C reaction temperature, and reaction duration of 120 min with 3 wt % of catalyst dose, were optimized by varying one variable at a time. The synthesized catalyst showed an excellent selectivity (99%) for the synthesis of solketal, with a yield of 98% and 99% conversion of glycerol to solketal. Green metrics, like E-factor (0.084), PMI (1.87), and CE (0.66), were also studied, which show that solketal production is sustainable and environmentally friendly. The catalyst endurance capacity was intact up to the sixth cycle, which makes it more efficient for widespread applications on an industrial scale.

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Techno-economic assessment of flare gas valorisation during membrane-based GTL process by net-zero strategy

Jafari,

Spallina,

Ghasemzadeh

2024

Energy Conversion and Management

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Process assessment of renewable-based acrylic acid production from glycerol valorisation

Cited by 5 publications

References 25 publications

Experimental Scale-Up and Technoeconomic Assessment of Low-Grade Glycerol Purification from Waste-Based Biorefinery

Experimental Scale-Up and Technoeconomic Assessment of Low-Grade Glycerol Purification from Waste-Based Biorefinery

Synthesis and E-metric Studies of an Economically Viable Heterogeneous Acid Catalyst for Production and Upscaling of Solketal

Techno-economic assessment of flare gas valorisation during membrane-based GTL process by net-zero strategy

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