Bioethanol: fuel or feedstock?

Rass‐Hansen, Jeppe; Falsig, Hanne; Jørgensen, Bo; Christensen, Claus H.

doi:10.1002/jctb.1665

Cited by 195 publications

(114 citation statements)

References 17 publications

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“…Additionally, bioethanol has other varied uses which make it a highly valuable commodity. It can be used in domestic cooking as ethanol gels [6], in fuel cells [7], for hydrogen production and as a precursor for other chemical commodities [8].…”

Section: Introductionmentioning

confidence: 99%

Mixed Feedstock Approach to Lignocellulosic Ethanol Production—Prospects and Limitations

2016

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Lignocellulosic ethanol is a promising alternative to fossil-derived fuels because lignocellulosic biomass is abundant, cheap and its use is environmentally friendly. However, the high costs of feedstock supply and the expensive processing requirements of lignocellulosic biomass hinder the development of the lignocellulosic biorefinery. Lignocellulosic ethanol production so far, has been based mainly on single feedstocks while the use of mixed feedstocks has been poorly explored. Previous studies from alternative applications of mixed lignocellulosic biomass (MLB) have shown that their use can bring about significant cost savings when compared to single feedstocks. Although laboratoryscale evaluations have demonstrated that mixed feedstocks give comparable or even higher ethanol yields compared to single feedstocks, more empirical studies are needed to establish the possibility of achieving significant cost savings in terms of pre-biorefinery logistics. In this review, some potential benefits of the use of MLB for ethanol production are highlighted. Some anticipated limitations of this approach have been identified and ways to surmount them have been suggested. The outlook for ethanol production from MLB is promising provided that revolutionary measures are taken to ensure the sustainability of the industry.

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Section: Introductionmentioning

confidence: 99%

Mixed Feedstock Approach to Lignocellulosic Ethanol Production—Prospects and Limitations

2016

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“…Currently, as much as 95% of all synthetic substances are manufactured from fossil resources [14]. The majority of plastics are produced using seven key hydrocarbons (compounds consisting entirely of hydrogen and carbon) as their building blocks (ethylene (C2), propylene (C3), C4 olefins or butadiene (C4), benzene (C6), toluene (C7), and xylene (C8)) [13].…”

Section: Background-pvc Within the Context Of Other Polymers And Syntmentioning

confidence: 99%

Improving the Healthiness of Sustainable Construction: Example of Polyvinyl Chloride (PVC)

Petrović

Hamer

2018

Buildings

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Abstract:With the increasing emphasis on sustainable construction, it has become important to better understand the impacts of common materials. This is especially paramount with the introduction of the United Nations (UN) Sustainable Development Goals (SDGs) which call for more comprehensive evaluations, adding many aspects of social consideration to the issues of environmental sustainability, including human health. Polyvinyl chloride (PVC)/vinyl can be seen as a material with potential for significant adverse effects on a multiplicity of levels, and the construction industry is its single most significant consumer. This article presents a transdisciplinary review of adverse health impacts associated with PVC showing a number of issues: some that could be eliminated through design, but also some which appear inherent to the material itself and therefore unavoidable. The totality of issues revealed in relation to PVC presents a compelling case for a call for complete elimination of use of this material in sustainable construction.

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“…[94][95][96] The cost of the biomass-derived product is affected by several factors, including crops (efficiency, management and transportation), biomass pre-treatment (drying, grounding, depolymerizing), chemical process (productivity, product separation and purification), and market demand. From the chemical point of view, there are important features to be addressed aiming a cost-effective chemical process: 97 (i) Replacement of corrosive substances (e.g., mineral acids), improvement of biomass hydrolysis efficiency and development of processes compatible with different biomass feedstocks; (ii) Enhance the product yields; (iii) Design of energy efficient processes that require minimum product separation; (iv) Processes integration, development of one-pot processes, and maximization of the number of reaction steps that can be performed in a single reactor and/or integration between chemical and biological catalysis.…”

Section: Catalysts: Towards Heterogeneous Catalysis Bifunctional Catmentioning

confidence: 99%

The Chemical Conversion of Biomass-Derived Saccharides: an Overview

Gallo¹,

Almeida‐Trapp²

2017

J. Braz. Chem. Soc.

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Chemicals commodities and consumable, accounting for billions of ton of carbon per year, are produced in an industry based on non-renewable fossil feedstocks. Oil reserves are enough for feeding chemical industry for another century, and therefore, it is essential finding alternative sources of carbon for a progressive replacement of the industrial feedstock. In this context lignocellulosic, a renewable source of carbon composed mainly by polymers of sugars, appears as the most promising candidate. Herein, it will be discussed the status, challenges and prospective future of biomass as industrial feedstock in a raising biorefinery, aiming to clarify the real problems in the actual biomass processing. It will be shown that lignocellulosic biomass is able to replace oil in the production of several chemicals and also delivery new compounds with important applications. However, for a cost effective use of biomass, the development and improvement of solvent and catalytic systems play a leading role. The sustainability of biomass feedstock is also discussed from the economical, social and environmental points of view.

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Bioethanol: fuel or feedstock?

Cited by 195 publications

References 17 publications

Mixed Feedstock Approach to Lignocellulosic Ethanol Production—Prospects and Limitations

Mixed Feedstock Approach to Lignocellulosic Ethanol Production—Prospects and Limitations

Improving the Healthiness of Sustainable Construction: Example of Polyvinyl Chloride (PVC)

The Chemical Conversion of Biomass-Derived Saccharides: an Overview

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