Biomass-based biorefineries: An important architype towards a circular economy

Kumar, Brijesh; Verma, Pradeep

doi:10.1016/j.fuel.2020.119622

Cited by 199 publications

(77 citation statements)

References 270 publications

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“…Other studies focus on the CE in terms of sustainable food consumption and highlight the linkage between those two concepts (Aiking & de Boer, 2020). Moreover, there are researchers investigating the CE as a technology for fuel recycling (Kumar & Verma, 2021). To sum up, scholars from different fields have researched the CE, but there is a lack of studies investigating the CE of individual countries.…”

Section: Discussionmentioning

confidence: 99%

Circular economy as assistance for sustainable development in OECD countries

Skvarciany

Lapinskaitė

Volskytė

2021

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Research background: Circular economy is of great importance, as it plays a vital role in ensuring the reuse of waste created and, therefore, reduces the waste of limited resources, which is the primary goal of the general economic concept. In line with the circular economy, sustainable development gains great attention, as the United Nations announced the sustainable development goals that should be reached by 2030. Hence, the current paper aims at examining whether the circular economy could be treated as an effective assistance tool for sustainable development of OECD countries. Purpose of the article: The paper aims to investigate whether the circular economy could serve as an assistance tool for sustainable development and, therefore, seeks to determine if the circular economy could directly impact a country?s sustainable development. Methods: First, the countries chosen were prioritised using the Analytic Hierarchy Process (AHP) and the Evaluation Based on Distance from Average Solution (EDAS) methodologies. AHP method was used for weight assignment to the circular economy indicators that were further used for OECD countries? prioritisation procedure for which multi-criteria decision-making method EDAS was employed. Second, to reveal a link between the circular economy ranking results and sustainable development, a comparative analysis was done. Third, the impact of the country?s circular economy on sustainable development was evaluated using the fixed-effect regression model on four years of panel data from 2016 to 2019 for the sample of 32 OECD countries. Findings & value-added: The comparative analysis of the circular economy?s prioritisation results and Sustainable Development Goals Index (SDGI) ranking showed 20 out of 32 matches, assuming a link between the circular economy and sustainable development could be made. The fixed-effect regression equation results demonstrate that the unemployment rate, poverty rate, air pollution exposure, and CO2 emission per capita negatively influence sustainable development. In contrast, indicators such as gross domestic expenditure on R&D, renewable energy, number of passenger cars in use, and households with Internet access positively impact SDGI. The hypothesis that the circular economy is seen as an assistance for sustainable development and directly affects a country?s sustainability was approved. The paper contributes to the scientific literature in the field of circular economy and sustainable development interaction and could be seen as an assumption for new research directions, focusing on the linkage between circular economy and sustainable development. Moreover, the obtained results could contribute to a country?s policy-makers by highlighting the essential indicators of a circular economy that should be considered while forming the strategy of a country?s sustainable development.

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Section: Discussionmentioning

confidence: 99%

Circular economy as assistance for sustainable development in OECD countries

Skvarciany

Lapinskaitė

Volskytė

2021

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“…Scientists and entrepreneurs are trying to make lignocellulosic ethanol industry have economic advantage, and their attempts mainly include the following aspects: the construction of raw material collection and storage system, on-site production of the enzymes, utilizing of components of materials with high value, mature equipment and overall industrialization solutions, etc. [106][107][108][109].…”

Section: Industrialization Trendmentioning

confidence: 99%

Industrialization progress of lignocellulosic ethanol

Wang¹,

Bilal

Tan

et al. 2021

Syst Microbiol and Biomanuf

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Lignocellulose is an abundant and renewable biomass that is mainly composed of cellulose, hemicellulose and lignin. The development and utilization of lignocellulosic ethanol is an effective way to solve the energy problem/crises, In addition, lignocellulosic ethanol industry can play a significant role in controlling environmental pollution and extending agricultural industrial chain; however, it has not been able to realize large-scale industrialization due to the limitation of both biotechnology and economy. This review first introduces industrialization status of lignocellulosic ethanol, and then focuses on the progress of practical technology and analyzing the economic feasibility of the second-generation bioethanol plant; finally, the future development trend of the industry was prospected. To summarize, continuous technological innovation is needed in vital steps such as pretreatment, enzymatic hydrolysis, and fermentation. Meanwhile, for making the cellulosic ethanol industry truly economically competitive, we also need to achieve interdisciplinary, cross-domain integration innovation, such as the construction of raw material collection and storage system, in situ producing special enzyme system, high-value utilization of raw material components, developing a closely integration of biomass refinery with mature equipment and overall industrialization programs, etc. It is hoped that this review can provide a useful reference for the industrialization of second-generation bioethanol.

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“…Moreover, fresh overviews devoted to the state of the art of adsorbents for CO 2 removal have been focused on biomass derived porous carbons (Singh et al, 2019;Xu and Strømme, 2019;Sher et al, 2020). However, much of the research lacks the use of biomass-derived adsorbents employed themselves as keymaterials to capture CO 2 and upgrade biogas to bio-CH 4 by adsorption-based processes (PSA), in a concept of a circulareconomy (Cheng et al, 2020;Sherwood, 2020;D'Adamo et al, 2021;Kumar and Verma, 2021). Hence, this mini-review offers a succinct summary of this topic presenting the most recent literature (2020-2021) of CO 2 uptake with biomass-derived porous carbons and the last 5 years literature of biocarbons application in PSA technology for biogas upgrading.…”

Section: Introductionmentioning

confidence: 99%

Biomass Valorization to Produce Porous Carbons: Applications in CO2 Capture and Biogas Upgrading to Biomethane—A Mini-Review

et al. 2021

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Porous carbon materials, derived from biomass wastes and/or as by-products, are considered versatile, economical and environmentally sustainable. Recently, their high adsorption capacity has led to an increased interest in several environmental applications related to separation/purification both in liquid- and gas-phases. Specifically, their use in carbon dioxide (CO2) capture/sequestration has been a hot topic in the framework of gas adsorption applications. Cost effective biomass porous carbons with enhanced textural properties and high CO2 uptakes present themselves as attractive alternative adsorbents with potential to be used in CO2 capture/separation, apart from zeolites, commercial activated carbons and metal-organic frameworks (MOFs). The renewable and sustainable character of the precursor of these bioadsorbents must be highlighted in the context of a circular-economy and emergent renewable energy market to reach the EU climate and energy goals. This mini-review summarizes the current understandings and discussions about the development of porous carbons derived from bio-wastes, focusing their application to capture CO2 and upgrade biogas to biomethane by adsorption-based processes. Biogas is composed by 55–65 v/v% of methane (CH4) mainly in 35–45 v/v% of CO2. The biogas upgraded to bio-CH4 (97%v/v) through an adsorption process yields after proper conditioning to high quality biomethane and replaces natural gas of fossil source. The circular-economy impact of bio-CH4 production is further enhanced by the use of biomass-derived porous carbons employed in the production process.

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Biomass-based biorefineries: An important architype towards a circular economy

Cited by 199 publications

References 270 publications

Circular economy as assistance for sustainable development in OECD countries

Circular economy as assistance for sustainable development in OECD countries

Industrialization progress of lignocellulosic ethanol

Biomass Valorization to Produce Porous Carbons: Applications in CO2 Capture and Biogas Upgrading to Biomethane—A Mini-Review

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