Biorefineries:  Current Status, Challenges, and Future Direction

Fernando, Sandun; Adhikari, Sushil; Chandrapal, and Chauda; Murali, N. S.

doi:10.1021/ef060097w

Cited by 591 publications

(335 citation statements)

References 15 publications

Supporting

Mentioning

310

Contrasting

Unclassified

Order By: Relevance

“…Beverage and food production has become heavily industrialised and therefore regulated generating tons of waste per annum [38,39]. The food industry is shifting towards the intensive production of ready to eat foods (RTE) that are consumed in venues Fig.…”

Section: Waste: a Sustainable Point Of Supply Of Resources And Energymentioning

confidence: 99%

Grape Winery Waste as Feedstock for Bioconversions: Applying the Biorefinery Concept

Zacharof

2016

Waste Biomass Valor

130

View full text Add to dashboard Cite

Grape wine is among the most important alcoholic beverages in the globe, with a continuously rising world demand, currently sizing at 25 billion litres. Such a large and heavily industrialised market calls for the maintenance of a steady production of raw materials to end products. Consequently, intensive cultivation of land, harvesting of the goods and manufacturing for the production of commercially available products are being implemented. Wine making is a timed, multistage process producing a large amount of organic and inorganic waste. It has been calculated that during cultivation and harvesting about 5 tonnes of solid waste are generated per hectare per year, while the winery wastewater varies according to the production size from 650,000 m 3 (Greece) to over 18,000,000 m 3 (Spain) per year. Conventional treatments of winery waste are becoming increasingly expensive, demanding significant amounts of effort, resources and energy for safe waste discharge. Therefore, the need to recycle, reuse and recover energy and valuable chemicals from winery waste and wastewater becomes apparent. Valorisation of winery waste is possible when introducing the concept of biorefinery, i.e. the use of winery waste as bioconversions feedstock in order to produce platform chemicals, biofuels, heat and energy.

show abstract

Section: Waste: a Sustainable Point Of Supply Of Resources And Energymentioning

confidence: 99%

Grape Winery Waste as Feedstock for Bioconversions: Applying the Biorefinery Concept

Zacharof

2016

Waste Biomass Valor

130

View full text Add to dashboard Cite

show abstract

“…Many authors describe the entire energy system either through the use of a technical bottom-up approach or a macroeconomic top-down approach (Junginger et al, 2008). There are also a number of studies evaluating whole supply chains for biobased products (Stephen et al, 2010;Kim et al, 2011), biorefinery concepts (Fernando et al, 2006;Clark, 2007;Francesco, 2010) or the potential of biofuels for individual countries (Martinsen et al, 2010). For example, Kim et al (2011) use a mixed integer linear programming model that enables the selection of fuel conversion technologies, capacities, biomass locations, and the logistics of transportation from the raw material locations to the conversion sites and then to the final markets.…”

Section: Calculation Models For Energy Production Costsmentioning

confidence: 99%

Modelling production cost scenarios for biofuels and fossil fuels in Europe

Festel¹,

Würmseher²,

Rammer

et al. 2014

Journal of Cleaner Production

View full text Add to dashboard Cite

Die Dis cus si on Pape rs die nen einer mög lichst schnel len Ver brei tung von neue ren For schungs arbei ten des ZEW. Die Bei trä ge lie gen in allei ni ger Ver ant wor tung der Auto ren und stel len nicht not wen di ger wei se die Mei nung des ZEW dar.Dis cus si on Papers are inten ded to make results of ZEW research prompt ly avai la ble to other eco no mists in order to encou ra ge dis cus si on and sug gesti ons for revi si ons. The aut hors are sole ly respon si ble for the con tents which do not neces sa ri ly repre sent the opi ni on of the ZEW. Das Wichtigste in Kürze Executive SummaryCompetitive production costs compared to conventional fuels are imperative for biofuels to gain market shares, as current tax advantages for biofuels are only temporary. Comparing production costs of different biofuels with fossil fuels is a challenge due to the complexity of influencing factors. The objective of this research paper is threefold: 1) to project future biofuel feedstock prices based on the crude oil price development, the price index for agricultural products, growth in world population, growth in wealth per capita income, and change in energy consumption per capita, 2) to simulate production costs under consideration of likely economies of scale from scaling-up production size and technological learning and 3) to compare different biofuels and fossil fuels by scenario analysis.A calculation model for biofuel production is used to analyse projected production costs for different types of biofuels in Europe for 2015 and 2020. Unlike engineering oriented bottomup approaches that are often used in other biofuel studies, the macro-economic top-down approach applied in this study enables an economic comparison and discussion of various fuel types based on reference scenarios of crude oil prices of €50, €100, €150 and €200 per barrel.Depending on the specific raw material prices as well as the conversion costs, the analysis delivered a differentiated view on the production costs and thus on the competitiveness of each individual type of fuel.The results show that 2nd generation biofuels are most likely to achieve competitive production costs mid-to long-term when taking into account the effects from technological learning and production scale size as well as crude oil price scenarios between €50 and €200 per barrel for both reference years. In all crude oil price scenarios, bioethanol from lignocellulosic raw materials as well as biodiesel from waste oil are associated with high cost saving potentials which enable them to outperform fossil fuels and 1st generation biofuels. Modelling Production Cost Scenarios for Biofuels and Fossil Fuels in Europe AbstractThis paper presents the results of a calculation model for biofuel production costs in 2015 and 2020 based on raw material price projections and considering scale and learning effects. Distinguishing six types of biofuels, the paper finds that scale economies and learning effects are critical for 2nd generation biofuels to become competitive. In case these ef...

show abstract

“…Both techno-economic and environmental performance need to be considered. A concept of 'biorefinery', which is analogous to the 'oil-refinery', is currently being developed for the conversion of lignocellulosic biomass, and simultaneous production of commercial liquid biofuels, heat and power, and a wide range of bioproducts [18,19]. The utilization of lignocellulosic biomass feedstock (e.g.…”

Section: Introductionmentioning

confidence: 99%

Optimizing ethanol and bioelectricity production in sugarcane biorefineries in Brazil

et al. 2016

View full text Add to dashboard Cite

a b s t r a c tIn sugarcane biorefineries, the lignocellulosic portion of the sugarcane biomass (i.e. bagasse and cane trash) can be used as fuel for electricity production and/or feedstock for second generation (2G) ethanol. This study presents a techno-economic analysis of upgraded sugarcane biorefineries in Brazil, aiming at utilizing surplus bagasse and cane trash for electricity and/or ethanol production. The study investigates the trade-off on sugarcane biomass use for energy production: bioelectricity versus 2G ethanol production. The BeWhere mixed integer and spatially explicit model is used for evaluating the choice of technological options. Different scenarios are developed to find the optimal utilization of sugarcane biomass. The study finds that energy prices, type of electricity substituted, biofuel support and carbon tax, investment costs, and conversion efficiencies are the major factors influencing the technological choice. At the existing market and technological conditions applied in the upgraded biorefineries, 300 PJ y À1 2G ethanol could be optimally produced and exported to the EU, which corresponds to 2.5% of total transport fuel demand in the EU. This study provides a methodological framework on how to optimize the alternative use of agricultural residues and industrial co-products for energy production in agro-industries considering biomass supply chains, the pattern of domestic energy demand, and biofuel trade.

show abstract

Biorefineries: Current Status, Challenges, and Future Direction

Cited by 591 publications

References 15 publications

Grape Winery Waste as Feedstock for Bioconversions: Applying the Biorefinery Concept

Grape Winery Waste as Feedstock for Bioconversions: Applying the Biorefinery Concept

Modelling production cost scenarios for biofuels and fossil fuels in Europe

Optimizing ethanol and bioelectricity production in sugarcane biorefineries in Brazil

Contact Info

Product

Resources

About