Development of Green Biorefinery for Biomass Utilization: A Review

Xiu, Shuangning; Shahbazi, Abolghasem

doi:10.17737/tre.2015.1.1.008

Cited by 38 publications

(24 citation statements)

References 27 publications

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“…The concept of the green biorefinery is based on a multiproduct system, which utilizes green biomass as an abundant and versatile raw material for manufacturing industrial products (Cherubini, 2010;Xiu & Shahbazi, 2015). The International Energy Agency has | 219 developed the following definition for biorefinery: "Biorefinery is the sustainable processing of biomass into a spectrum of marketable products and energy" (Jong, Langeveld, & Ree, 2009).…”

Section: Introductionmentioning

confidence: 99%

Grass silage for biorefinery—A meta‐analysis of silage factors affecting liquid–solid separation

Franco

Hurme

Winquist

et al. 2019

Grass and Forage Science

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This meta‐analysis based on 19 studies from Finland comprising 43 grass silages was undertaken to evaluate the effect of silage quality on liquid yield, liquid composition and retained compounds in liquid using four different liquid–solid separation methods. Silages were classified according to species (grass, clover or a mixture of them), additive treatment (no, biological or formic acid‐based additive) and harvest (primary growth or regrowth). A mixed model regression analysis with random study effect was used to evaluate the impact of silage characteristics on biorefinery efficiency. There was a large variation in silage quality in the data set. Silage dry‐matter concentration was the characteristic most highly correlated with liquid yield for all separation methods, and when used as an independent variable in the model, it resulted in the best predictions. The liquid–solid separation methods presented a great variation in the liquid yield, ranging from 0.26 to 0.56 when silage dry‐matter concentration was standardized to 250 g/kg. There was no effect of additive treatment and harvest in the estimation of the biorefinery potential, but species was a significant variable in predicting liquid yield for the laboratory‐scale presses with higher liquid yield for mixed grass and legume. The high correlation between silage quality and liquid yield and liquid composition provides potential to predict the biorefinery potential based on equations developed for each separation method. This information can be used to modify the silage production systems so that they best meet the requirements of a green biorefinery process.

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Section: Introductionmentioning

confidence: 99%

Grass silage for biorefinery—A meta‐analysis of silage factors affecting liquid–solid separation

Franco

Hurme

Winquist

et al. 2019

Grass and Forage Science

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“…Lignin can be used to produce formaldehyde resins, fuels or carbon fibers. This way of processing is called green biorefineries (Xiu and Shahbazi, 2015). A scheme of lignocellulose processing in biorefineries in shown in (Koltuniewicz, 2014) In green biorefineries virtually all natural green plants can be used as raw materials, providing that they do not belong to the food sources, as was mentioned previously in basic principles.…”

Section: Raw Materials Processed In Biorefineriesmentioning

confidence: 99%

“…In the dry residue (after the juice squeezing) levulinic acid is produced but also the green feed pellets, and the synthesis gas and several hydrocarbons (synthetic biofuels). The remains after a substantial conversion are also suitable for biogas production, combined with the generation of electricity and heat (Xiu and Shahbazi, 2015).…”

Section: Raw Materials Processed In Biorefineriesmentioning

confidence: 99%

Biorefineries – factories of the future

Koltuniewicz

Dąbkowska

2016

Chemical and Process Engineering

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Efforts were made to demonstrate that in biorefineries it is possible to manufacture all the commodities required for maintaining human civilisation on the current level. Biorefineries are based on processing biomass resulting from photosynthesis. From sugars, oils and proteins, a variety of food, feed, nutrients, pharmaceuticals, polymers, chemicals and fuels can further be produced. Production in biorefineries must be based on a few rules to fulfil sustainable development: all raw materials are derived from biomass, all products are biodegradable and production methods are in accordance with the principles of Green Chemistry and Clean Technology. The paper presents a summary of state-of-the-art concerning biorefineries, production methods and product range of leading companies in the world that are already implemented. Potential risks caused by the development of biorefineries, such as: insecurities of food and feed production, uncontrolled changes in global production profiles, monocultures, eutrophication, etc., were also highlighted in this paper. It was stressed that the sustainable development is not only an alternative point of view but is our condition to survive.

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“…After an initial solid-liquid separation, the soluble components of the press juice are directly available for biotechnological applications. A breakdown of the fibrous solid silage matter, mainly lignocellulose, further enhances the potential for applications (Schwarz et al, 2016;Xiu & Shahbazi, 2015). In this process, two resource streams (solid and liquid) are created, and if necessary, the solid phase can still be used as feedstock since the fibrous matter is the main nutrient source for ruminants.…”

Section: Introductionmentioning

confidence: 99%

Deacidification of grass silage press juice by continuous production of acetoin from its lactate via an immobilized enzymatic reaction cascade

Hohagen

Schwarz

Schenk

et al. 2017

Bioresource Technology

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An immobilized enzymatic reaction cascade was designed and optimized for the deacidification of grass silage press juice (SPJ), thus facilitating the production of bio-based chemicals. The cascade involves a three-step process using four enzymes immobilized in a Ca-alginate gel and uses lactic acid to form acetoin, a value-added product. The reaction is performed with a continuous, pH-dependent substrate feed under oxygenation. With titrated lactic acid yields of up to 91% and reaction times of ca. 6h was achieved. Using SPJ as titrant yields of 49% were obtained within 6h. In this deacidification process, with acetoin one value-added bio-based chemical is produced while simultaneously the remaining press juice can be used in applications that require a higher pH. Such, this system can be applied in a multi-product biorefinery concept to take full advantage of nutrient-rich SPJ, which is a widely available and easily storable renewable resource.

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Development of Green Biorefinery for Biomass Utilization: A Review

Cited by 38 publications

References 27 publications

Grass silage for biorefinery—A meta‐analysis of silage factors affecting liquid–solid separation

Grass silage for biorefinery—A meta‐analysis of silage factors affecting liquid–solid separation

Biorefineries – factories of the future

Deacidification of grass silage press juice by continuous production of acetoin from its lactate via an immobilized enzymatic reaction cascade

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