Green biorefinery – Industrial implementation

Kamm, Birgit; Schönicke, Petra; Hille, Ch.

doi:10.1016/j.foodchem.2015.11.088

Cited by 75 publications

(53 citation statements)

References 9 publications

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“…Additionally, according to Bühle, Hensgen, Donnison, Heinsoo, and Wachendorf (2012), the pelletized pulp is also suitable for solid fuel combustion, whereas the press liquid could be used as a co-substrate for biogas plant. Ensiled grass instead of fresh grass can be used year round, which results in logistically more efficient use of green biomass (Kamm, Schönicke, & Hille, 2016) requiring a press with lower capacity as it would avoid the need to process a large amount of fresh grass in a short time. Furthermore, technologies for efficient harvesting and preservation of grass silage are well established (Wilkinson & Rinne, 2018).…”

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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“…Compared to legumes or to grass‐legume mixtures, the productivity of soybeans per ha is quite low . Moreover, permanent grassland and field grass on arable land accounts for approximately one third of the agricultural land in Europe, where alfalfa is the most important forage crop . In this context, the extraction of proteins from green biomass including alfalfa, clover, and grass within a green biorefinery concept represents a promising alternative to guarantee a local and efficient animal feed supply in Europe.…”

Section: Introductionmentioning

confidence: 99%

“…A wide variety of valuable products including proteins, fibers, chemicals, and energy could be produced in this type of biorefinery. Existing agricultural production structures such as thermal drying plants for the production of green fodder pellets might be utilized, promoting the implementation of the new green biorefineries …”

Section: Introductionmentioning

confidence: 99%

“…3 Moreover, permanent grassland and field grass on arable land accounts for approximately one third of the agricultural land in Europe, where alfalfa is the most important forage crop. 4 In this context, the extraction of proteins from green biomass including alfalfa, clover, and grass within a green biorefinery concept represents a promising alternative to guarantee a local and efficient animal feed supply in Europe. The general process of the green biorefinery concept is to separate the green biomass into a fiber-rich press cake and a proteinrich green juice.…”

Section: Introductionmentioning

confidence: 99%

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Demonstration‐scale protein recovery by lactic acid fermentation from grass clover – a single case of the production of protein concentrate and press cake silage for animal feeding trials

Santamaría-Fernández

Ambye‐Jensen

Damborg

et al. 2018

Biofuels Bioprod Bioref

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There is an increasing interest in green biorefineries for the utilization of green biomass to provide a variety of valuable products. Proteins can be extracted from green biomasses such as alfalfa, clover, or grass and separated into protein‐rich concentrates suitable for feeding to monogastric animals. Press cake suitable for feeding ruminant animals is also produced. Full implementation of such a green biorefinery requires knowledge and experience of production at demonstration scale. Moreover, product evaluation in animal‐feeding trials requires a large amount of product. There has been collaboration in Denmark between several partners from industry and academia to assess the practicality and scalability of a green biorefining plant producing protein concentrate and press cake silage from organic grass clover at the scale of ca. 10 tons per hour fresh biomass input. Lactic acid fermentation of the pressed green juice was successfully performed to precipitate proteins and stabilize the juice. Despite minor difficulties, the demonstration‐scale biorefining plant was operative for four days, processed 444 tons of grass clover, and resulted in the overall production of 1 ton of dried protein concentrate, 7 tons of protein paste, and 223 tons of press cake silage. The protein concentrate was rich in essential amino acids and was tested in feeding trials with poultry; the press cake silage, rich in processed fibers and fiber‐associated proteins, was tested in feeding trials with dairy cows. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…Biorefineries, which use raw materials including industrial and agricultural waste, urban garbage, and other environmental benign feedstocks instead of fossil fuels, have been receiving increased attention (Cardoen et al 2015;Kamm et al 2016;Papendiek et al 2016). Biorefineries provide fuels and chemicals for use in transportation and various industries, solving some thorny environmental and energy problems at the same time (O'Callaghan 2016; Sadhukhan et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Hydrolyzates Produced from Cellulose Catalyzed by Carbonaceous Solid Acid in an Ionic Liquid

Liu

Zhou

et al. 2016

BioResources

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The hydrolysis of cellulose using carbonaceous solid acid (CSA) in an ionic liquid was studied. The types and concentrations of products generated during the hydrolysis of the cellulose under different conditions, including temperature, reaction time, water addition, and recycle time, were investigated. The CSA prepared in the study contained 1.45 mmol/g of acidic groups, which was higher than the theoretical amount of sulfonic groups. The highest yields of total reducing sugars (TRS) and glucose were obtained at 5% water content, 6 h of reaction time, and 140 °C. The cellulose was hydrolyzed effectively via catalysis of CSA in [AMIM][Cl] with a low water content. Analysis of the products under different conditions in this work provides a strong basis for the full use of hydrolyzed cellulose. Sciences, Guangzhou 510640, China; c: Collaborative Innovation Centre of Biomass Energy, Zhengzhou, 450002, China; *Corresponding author: qiwei@ms.giec.ac.cn Keywords: Carbonaceous solid acid; Hydrolysis; Cellulose; Ionic liquid Contact information: a: State Key laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China; b: Guangzhou Institute of Energy Conversion, Key Laboratory of Renewable Energy, Chinese Academy of INTRODUCTIONBiorefineries, which use raw materials including industrial and agricultural waste, urban garbage, and other environmental benign feedstocks instead of fossil fuels, have been receiving increased attention (Cardoen et al. 2015;Kamm et al. 2016;Papendiek et al. 2016). Biorefineries provide fuels and chemicals for use in transportation and various industries, solving some thorny environmental and energy problems at the same time (O'Callaghan 2016;Sadhukhan et al. 2016).Cellulose usually has the dominant content in the lignocellulosic biomass. It is a highly crystalline polymer (Bai et al. 2014) connected by β-glycosidic linkages (Rinaldi et al. 2008). Suganuma et al. (2008) applied a carbon material bearing SO3H groups to cellulose hydrolysis under hydrothermal conditions, which avoided recovery problems and high energy input of traditional mineral acid catalysts (Namchot et al. 2014). The yields of glucose and β-1,4 glucan were 4% and 64%, respectively, while the yields of the experimental group catalyzed by sulfuric acid were 10% and 38% under the same conditions, respectively. Thus, carbon-based solid acid (CSA) can replace mineral acid as the catalyst for the hydrolysis of cellulose; however, further research is needed to enhance the hydrolysis efficiency and yield of desired products.Glucans consist of more than 30 anhydroglucose units (AGU) and are insoluble in most common solvents (Percival Zhang et al. 2006) (Dutta et al. 2013;Liu et al. 2013;Lian et al. 2014). Interesting results were recorded in particular reactions catalyzed by CSA (Guo et al. 2012b;Bai et al. 2014). Furthermore, the types and contents of chemicals in the hydrolysate should be quantified. There have also been studies producing certain chemicals, especially 5-hydroxymethylfurfural (5-HMF) (Guo...

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Green biorefinery – Industrial implementation

Cited by 75 publications

References 9 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

Demonstration‐scale protein recovery by lactic acid fermentation from grass clover – a single case of the production of protein concentrate and press cake silage for animal feeding trials

Analysis of Hydrolyzates Produced from Cellulose Catalyzed by Carbonaceous Solid Acid in an Ionic Liquid

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