Techno-economic assessment of biomass-to-ethanol by indirect fluidized bed gasification: Impact of reforming technologies and comparison with entrained flow gasification

Valle, C. Reyes; Perales, A.L. Villanueva; Vidal-Barrero, F.; Gómez–Barea, Alberto

doi:10.1016/j.apenergy.2013.04.024

Cited by 46 publications

(8 citation statements)

References 29 publications

(111 reference statements)

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“…Villanueva Perales et al (2011) and Reyes Valle et al (2013) compare the MAS pathway under two reactor type scenarios: an indirectly-heated circulating fluidized bed gasifier and an entrained-flow gasifier. The biorefineries in both scenarios consume 2140 MTPD of poplar chip feedstock.…”

Section: Mixed Alcohols Synthesismentioning

confidence: 98%

A techno-economic review of thermochemical cellulosic biofuel pathways

Brown

2015

Bioresource Technology

143

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Section: Mixed Alcohols Synthesismentioning

confidence: 98%

A techno-economic review of thermochemical cellulosic biofuel pathways

Brown

2015

Bioresource Technology

143

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“…Table 10. Syngas purity as a function of the downstream process [36,131,139,143,[146][147][148][149][150][151][152]. N.A.…”

Section: Biofuels From Syngasmentioning

confidence: 99%

“…N.A. = not available; # Unit = ppmv; ## Unit = mg/Nm 3 ; ### Unit = g/Nm 3 ; § <1 ppmv for heteroatoms and BTX; + Direct conversion of syngas to ethanol; ++ A minimum content of sulphur (in the form of H 2 S) of 50-100 ppmv is required by Mo catalysts to maintain sulfidity [147]; * For Ni Catalysts.…”

Section: Biofuels From Syngasmentioning

confidence: 99%

Biofuels Production by Biomass Gasification: A Review

et al. 2018

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The production of biofuels from renewable sources is a major challenge in research. Methanol, ethanol, dimethyl ether (DME), synthetic natural gas (SNG), and hydrogen can be produced from syngas which is the result of the gasification of biomasses. Syngas composition varies according to the gasification technology used (such as fixed bed reactors, fluidized bed reactors, entrained flow reactors), the feedstock characteristics, and the operating parameters. This paper presents a review of the predominant biomass gasification technologies and biofuels obtained from syngas by biomass gasification.

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“…Abubakar et al [21] graphed the variations of mean NPV with the increase of the sample size. Sensitivity analyses conducted by Reyes Valle et al [22] estimated how breakeven prices respond to ±30% uncertainty in fixed capital costs. Zhu et al [23] used a sample size of 100 experimental cases to derive a breakeven price distribution when evaluating a Bench-scale woody biomass hydrothermal liquefaction (HTL) upgrading plant; however, their sample size is insufficient to estimate a breakeven price distribution without randomization and the authors did not consider how price projections and price uncertainties would influence the distribution results.…”

Section: Introductionmentioning

confidence: 99%

Stochastic techno-economic analysis of alcohol-to-jet fuel production

Yao

Staples

Malina

et al. 2017

Biotechnol Biofuels

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BackgroundAlcohol-to-jet (ATJ) is one of the technical feasible biofuel technologies. It produces jet fuel from sugary, starchy, and lignocellulosic biomass, such as sugarcane, corn grain, and switchgrass, via fermentation of sugars to ethanol or other alcohols. This study assesses the ATJ biofuel production pathway for these three biomass feedstocks, and advances existing techno-economic analyses of biofuels in three ways. First, we incorporate technical uncertainty for all by-products and co-products though statistical linkages between conversion efficiencies and input and output levels. Second, future price uncertainty is based on case-by-case time-series estimation, and a local sensitivity analysis is conducted with respect to each uncertain variable. Third, breakeven price distributions are developed to communicate the inherent uncertainty in breakeven price. This research also considers uncertainties in utility input requirements, fuel and by-product outputs, as well as price uncertainties for all major inputs, products, and co-products. All analyses are done from the perspective of a private firm.ResultsThe stochastic dominance results of net present values (NPV) and breakeven price distributions show that sugarcane is the lowest cost feedstock over the entire range of uncertainty with the least risks, followed by corn grain and switchgrass, with the mean breakeven jet fuel prices being $0.96/L ($3.65/gal), $1.01/L ($3.84/gal), and $1.38/L ($5.21/gal), respectively. The variation of revenues from by-products in corn grain pathway can significantly impact its profitability. Sensitivity analyses show that technical uncertainty significantly impacts breakeven price and NPV distributions.ConclusionsTechnical uncertainty is critical in determining the economic performance of the ATJ fuel pathway. Technical uncertainty needs to be considered in future economic analyses. The variation of revenues from by-products plays a significant role in profitability. With the distribution of breakeven prices, potential investors can apply whatever risk preferences they like to determine an appropriate bid or breakeven price that matches their risk profile.Electronic supplementary materialThe online version of this article (doi:10.1186/s13068-017-0702-7) contains supplementary material, which is available to authorized users.

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Techno-economic assessment of biomass-to-ethanol by indirect fluidized bed gasification: Impact of reforming technologies and comparison with entrained flow gasification

Cited by 46 publications

References 29 publications

A techno-economic review of thermochemical cellulosic biofuel pathways

A techno-economic review of thermochemical cellulosic biofuel pathways

Biofuels Production by Biomass Gasification: A Review

Stochastic techno-economic analysis of alcohol-to-jet fuel production

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