Comparison of different kraft lignin-based vanillin production processes

Wongtanyawat, Nattanan; Lusanandana, Possawat; Khwanjaisakun, Nawaporn; Kongpanna, Pichayapan; Phromprasit, Janewit; Simasatitkul, Lida; Amornraksa, Suksun; Assabumrungrat, Suttichai

doi:10.1016/j.compchemeng.2018.05.020

Cited by 30 publications

(13 citation statements)

References 21 publications

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“…1) and as such only the yields of these products are discussed. The ketones 4-hydroxyacetophenone (4), acetovanillone (5), and acetosyringone (6) as well as the acids vanillic acid (7) and syringic acid ( 8) are secondary products. Other, minor organic products include higher-molecular weight carboxylic and phenolic compounds, as well as volatile organic acids such as acetic acid.…”

Section: Analysis and Characterisationmentioning

confidence: 99%

“…3 Conducting an LCA as part of a new process analysis has become more prevalent with the availability of LCA software and environmental databases. 4,5 The benefits of LCA are the identification and quantification of impacts of particular processes or compounds to the environment allowing for adjustment of the process as to be more environmentally by design. This is a change from previous modes whereby the processes were shown to work, scaled and then an effort was made to mitigate against environmental impact.…”

Section: Introductionmentioning

confidence: 99%

“…Isola et al 4 reported a quantified method to lower environmental impact of alkali lignin depolymerisation with vanillin using MoO, Lao and CoO catalysts. Wongtanyawat et al 5 reported a quantified environmental impact of process design, including solvent selection, for the production of vanillin using LCSoft.…”

Section: Introductionmentioning

confidence: 99%

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Life cycle thinking case study for catalytic wet air oxidation of lignin in bamboo biomass for vanillin production

et al. 2021

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Section: Analysis and Characterisationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Life cycle thinking case study for catalytic wet air oxidation of lignin in bamboo biomass for vanillin production

et al. 2021

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“…Before entering the hydrolysis, it is vital to remove fermentation inhibitors from the feed, and this step is called detoxification. It was found that using activated carbon is a very effective method as it can remove 93% of furfural and 96% of 5-hydroxymethyl furfural (HMF), and, more importantly, without sugar loss [25,36]. Hence, it is used in our design cases 2 and 3.…”

Section: Alternative Processmentioning

confidence: 99%

Systematic design of separation process for bioethanol production from corn stover

et al. 2020

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Separation process is very crucial in bioethanol production as it consumes the highest energy in the process. Unlike other works, this research systematically designed a suitable separation process for bioethanol production from corn stover by using thermodynamic insight. Two separation processes, i.e., extractive distillation (case 2) and pervaporation (case 3), were developed and compared with conventional molecular sieve (case 1). Process design and simulation were done by using Aspen Plus program. The process evaluation was done not only in terms of energy consumption and process economics but also in terms of environmental impacts. It was revealed that pervaporation is the best process in all aspects. Its energy consumption and carbon footprint are 60.8 and 68.34% lower than case 1, respectively. Its capital and production costs are also the lowest, 37.0 and 9.88% lower than case 1.

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“…Energy and exergy calculations have been performed on catechol production based on lignin extracted from olive tree pruning . Process intensification has been combined with simulation to compare different strategies for the production of vanillin/methyl vanillate from kraft lignin, for example, extraction with organic solvents, nanofiltration, and adsorption with zeolite; the last alternative shows additional savings in energy and cost of 0.2 and 7.4%, respectively . Capacity design and risk analysis of biophenol/resin production from kraft lignin have also been presented, , demonstrating that the viability of such a biorefinery depends on the selling price of the product on the market and variations in the cost of lignin.…”

Section: Introductionmentioning

confidence: 99%

Conceptual Design of a Kraft Lignin Biorefinery for the Production of Valuable Chemicals via Oxidative Depolymerization

Abdelaziz

Al-Rabiah

El‐Halwagi

et al. 2020

ACS Sustainable Chem. Eng.

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Lignin is the most abundant aromatic biopolymer on Earth, and its aromatic structure makes it a promising platform for the production of biobased chemicals and other valuable building blocks. The valorization of lignin into chemicals currently presents a challenge, and its facilitation is key in the development of viable lignocellulosic biorefinery processes. This study presents a conceptual design for a recently demonstrated process for lignin oxidative depolymerization. Modeling, simulation, and analysis were performed based on experimental data to assess the viability of the process. Mass and energy balances and main design data were determined for a 700 t/y kraft lignin biorefinery. The production capacity of aromatic chemicals, including vanillin, vanillic acid, guaiacol, and acetovanillone, was 0.3 kg aromatics/kg net lignin use. A heat-integrated process design is suggested, and the energy demands and the CO2 emissions are evaluated and compared. Assuming an interest rate of 10% and a plant lifetime of 10 years, the return on investment was calculated to be 14%, indicating that such a biorefinery is viable. A sensitivity analysis was carried out to assess the impact of the vanillin selling price and the cost of lignin on the profitability of the process. A quantitative investigation of process sustainability resulted in an E-factor of ∼1.6 for the entire synthetic route, that is, 38% material efficiency. The findings of this study underline the need for further research to develop efficient lignin conversion technologies with attractive yields in order to increase profitability on an industrial scale.

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Comparison of different kraft lignin-based vanillin production processes

Cited by 30 publications

References 21 publications

Life cycle thinking case study for catalytic wet air oxidation of lignin in bamboo biomass for vanillin production

Life cycle thinking case study for catalytic wet air oxidation of lignin in bamboo biomass for vanillin production

Systematic design of separation process for bioethanol production from corn stover

Conceptual Design of a Kraft Lignin Biorefinery for the Production of Valuable Chemicals via Oxidative Depolymerization

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