Economic value and environmental impact (EVEI) analysis of biorefinery systems

Martínez-Hernández, Elías; Campbell, Grant M.; Sadhukhan, Jhuma

doi:10.1016/j.cherd.2013.02.025

Cited by 58 publications

(27 citation statements)

References 24 publications

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“…Thermochemical processes via gasification and Fischer Tropsch process [23], as well as gasification for cleaner electricity production from syngas has also been reported [43]. A simultaneous economic and environmental impact assessment of biorefinery systems should be performed to enable an informed decision-making as to which process technology to adopt [44].…”

Section: Sugarcane -Technology and Researchmentioning

confidence: 99%

Sugarcane Bagasse Valorization Strategies for Bioethanol and Energy Production

Martínez-Hernández¹,

Amezcua‐Allieri²,

JhumaSadhukhan³

et al. 2018

Sugarcane - Technology and Research

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The use of sugarcane bagasse pith as solid substrate for fungi and microbial growth is well known, as well as a source of microorganisms that can be isolated from it. Pith has also been used as a bulking agent for soil bioremediation. More recently, bagasse pith has been used for bioethanol production involving pretreatment and hydrolysis followed by fermentation and dehydration. However, little is reported about biomass valorization for the development of environmentally sound and innovative strategies to process sugarcane bagasse from sugar mills. Incineration of sugarcane bagasse pith is a very common and mature technology for waste disposal and generation of electrical and thermal energy. However, this approach may not be satisfactory in organic waste management due to pollutant emissions, economic and labor costs, loss of energy, and bad odor. In addition, no valuable product is generated from its decomposition process. Instead of incineration, recent research has focused on its utilization as biofuel source. In this chapter, the use of sugarcane bagasse pith as a waste material for incineration versus biomass to produce bioethanol is discussed in terms of energy ratio and emissions, in addition to elucidate the potential of sugarcane bagasse valorization for a more sustainable society.

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Section: Sugarcane -Technology and Researchmentioning

confidence: 99%

Sugarcane Bagasse Valorization Strategies for Bioethanol and Energy Production

Martínez-Hernández¹,

Amezcua‐Allieri²,

JhumaSadhukhan³

et al. 2018

Sugarcane - Technology and Research

Self Cite

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“…bioplastics and composites) from plant biomass in addition to possible on-site energy production [4,5]. A well-designed integrated biorefinery process leads to increased productivity and improved economics by production of a variety of products while minimizing environmental impact by value-added utilization of all possible by-products [6].…”

Section: Introductionmentioning

confidence: 99%

Fractionation of rice straw by a single-step solvothermal process: Effects of solvents, acid promoters, and microwave treatment

et al. 2015

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a b s t r a c tFractionation of lignocellulosic components is a primary step for maximizing value-added conversion of plant biomass to biofuels and chemicals. In this study, different organic solvents (methyl isobutyl keone, ethyl acetate, toluene and diethyl ether) in the ternary water/alcohol/organic solvent system and acid promoters (H 2 SO 4 , HCl, and H 3 PO 4 ) were studied on a single-step solvothermal fractionation of rice straw. Ethyl acetate was found to be a superior composite solvent to the conventional solvent MIBK by providing higher glucan and lignin yields. Glucan and xylan could be further solubilized and lignin recovery increased at higher temperature and acid concentration. The optimal fractionation conditions were found to be water/ethanol/ethyl acetate (62.5%:25%:12.5%) mixture using 0.05 M H 2 SO 4 at 160 C for 1 h, which gave cellulose-enriched solid with 71.4 wt% glucan yield. Hemicellulose (53.2 wt%) was obtained as sugars, and dehydration products in the aqueous/alcohol phase were minimal. 63.1 wt% lignin was recovered in the organic solvent phase with no cross-contamination of sugars. Microwaveassisted heating at 300 W, corresponded to the temperature of 160 C for 1 h resulted in comparable glucan and lignin yields in the respective phases to conventional heating with the advantages of increased pentose yield and lower furan formation in the aqueous phase.

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“…Studies on several usage options, but for single years are available, e.g., on conventional biofuels in South Africa [19] and on energetic usages of woody biomass in Austria [20]. Methods for optimizing processes in terms of both economics and GHG emissions have been developed [21,22]; different biorefinery options have been assessed in terms of combined economics and environmental performance [23,24]; and the costs and potential of different GHG abatement measures have been assessed and compared [25,26]. Furthermore, more holistic assessments of biofuel and bioenergy options in Germany are available [27,28].…”

Section: Introductionmentioning

confidence: 99%

Relative Greenhouse Gas Abatement Cost Competitiveness of Biofuels in Germany

et al. 2018

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Transport biofuels derived from biogenic material are used for substituting fossil fuels, thereby abating greenhouse gas (GHG) emissions. Numerous competing conversion options exist to produce biofuels, with differing GHG emissions and costs. In this paper, the analysis and modeling of the long-term development of GHG abatement and relative GHG abatement cost competitiveness between crop-based biofuels in Germany are carried out. Presently dominant conventional biofuels and advanced liquid biofuels were found not to be competitive compared to the substantially higher yielding options available: sugar beet-based ethanol for the short-to medium-term least-cost option and substitute natural gas (SNG) for the medium to long term. The competitiveness of SNG was found to depend highly on the emissions development of the power mix. Silage maize-based biomethane was found competitive on a land area basis, but not on an energetic basis. Due to land limitations, as well as cost and GHG uncertainty, a stronger focus on the land use of crop-based biofuels should be laid out in policy.

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Economic value and environmental impact (EVEI) analysis of biorefinery systems

Cited by 58 publications

References 24 publications

Sugarcane Bagasse Valorization Strategies for Bioethanol and Energy Production

Sugarcane Bagasse Valorization Strategies for Bioethanol and Energy Production

Fractionation of rice straw by a single-step solvothermal process: Effects of solvents, acid promoters, and microwave treatment

Relative Greenhouse Gas Abatement Cost Competitiveness of Biofuels in Germany

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