Inbicon makes lignocellulosic ethanol a commercial reality

Larsen, Jan; Haven, Mai Østergaard; Thirup, Laila

doi:10.1016/j.biombioe.2012.03.033

Cited by 187 publications

(158 citation statements)

References 9 publications

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“…Compared to the yields reported the most recently [13], the model deviated by up to 6%. Due to the high uncertainties in facility yields reported in literature, the found accuracy was considered adequate for the present study.…”

Section: Modelling and Dimensioning Of The Ethanol Facilitycontrasting

confidence: 76%

“…The accuracy of the ethanol facility model was evaluated by comparing model yields with yields reported for IBUS-based systems by literature [13,18,21,23], see Table 4.…”

Section: Modelling and Dimensioning Of The Ethanol Facilitymentioning

confidence: 99%

“…A previous study by the authors [12] evaluated the energy economy of integrating lignocellulosic ethanol production based on the hydrothermal pretreatment technology IBUS 1 [13] in the existing Danish CHP unit Avedørevaerket 1 (AVV1). During integration, the hot utility demand of the ethanol facility was met by steam extracted from the turbines of AVV1, and when integration was not feasible due to high CHP loads or periods of CHP shut-down, a natural gas boiler was used to deliver the necessary heat while the power demand was met by power bought from the power market.…”

Section: Introductionmentioning

confidence: 99%

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Exergy analysis of a combined heat and power plant with integrated lignocellulosic ethanol production

Lythcke-Jørgensen

Haglind

Clausen

2014

Energy Conversion and Management

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Lignocellulosic ethanol production is often assumed integrated in polygeneration systems because of its energy intensive nature. The objective of this study is to investigate potential irreversibilities from such integration, and what impact it has on the efficiency of the integrated ethanol production.An exergy analysis is carried out for a modeled polygeneration system in which lignocellulosic ethanol production based on hydrothermal pretreatment is integrated in an existing combined heat and power (CHP) plant. The ethanol facility is driven by steam extracted from the CHP unit when feasible, and a gas boiler is used as back-up when integration is not possible. The system was evaluated according to six operation points that alternate on the following three different operation parameters: Load in the CHP unit, integrated versus separate operation, and inclusion of district heating production in the ethanol facility. The calculated standard exergy efficiency of the ethanol facility varied from 0.564 to 0.855, of which the highest was obtained for integrated operation at Complete revised manuscript Click here to view linked References 2 minimum CHP load and full district heating production in the ethanol facility, and the lowest for separate operation with zero district heating production in the ethanol facility. The results suggest that the efficiency of integrating lignocellulosic ethanol production in CHP plants is highly dependent on operation, and it is therefore suggested that the expected operation pattern of such polygeneration system is taken into account when evaluating the potential of the ethanol production.

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Section: Modelling and Dimensioning Of The Ethanol Facilitycontrasting

confidence: 76%

“…The accuracy of the ethanol facility model was evaluated by comparing model yields with yields reported for IBUS-based systems by literature [13,18,21,23], see Table 4.…”

Section: Modelling and Dimensioning Of The Ethanol Facilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exergy analysis of a combined heat and power plant with integrated lignocellulosic ethanol production

Lythcke-Jørgensen

Haglind

Clausen

2014

Energy Conversion and Management

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“…The conversion route from lignocellulosic material to products with higher added value consists of: pretreatment, enzymatic hydrolysis, fermentation, and purification [1,4]. Lignocellulosic biomass contains cellulose, hemicellulose (xylan and arabinan), lignin, ash, and other residues [5].…”

Section: Modeling and Simulation Are Used In This Study As Enabling Tmentioning

confidence: 99%

“…Second generation lignocellulosic biorefineries reached commercial reality in 2012 [1], and several large scale plants are in operation nowadays including Beta…”

Section: Introductionmentioning

confidence: 99%

Model-based plantwide optimization of large scale lignocellulosic bioethanol plants

Prunescu

Blanke

Jakobsen

et al. 2017

Biochemical Engineering Journal

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Second generation biorefineries transform lignocellulosic biomass into chemicals with higher added value following a conversion mechanism that consists of: pretreatment, enzymatic hydrolysis, fermentation and purification. The objective of this study is to identify the optimal operational point with respect to maximum economic profit of a large scale biorefinery plant using a systematic model-based plantwide optimization methodology. The following key process parameters are identified as decision variables: pretreatment temperature, enzyme dosage in enzymatic hydrolysis, and yeast loading per batch in fermentation. The plant is treated in an integrated manner taking into account the interactions and trade-offs between the conversion steps. A sensitivity and uncertainty analysis follows at the optimal solution considering both model and feed parameters. * Corresponding authorEmail address: gsi@kt.dtu.dk (Gürkan Sin) March 20, 2017 It is found that the optimal point is more sensitive to feedstock composition than to model parameters, and that the optimization supervisory layer as part of a plantwide automation system has the following benefits: (1) increases the economical profit, (2) flattens the objective function allowing a wider range of operation without negative impact on profit, and (3) reduces considerably the uncertainty on profit. Preprint submitted to Biochemical Engineering Journal

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Dynamic modeling and validation of a biomass hydrothermal pretreatment process—a demonstration scale study

et al. 2015

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Inbicon makes lignocellulosic ethanol a commercial reality

Cited by 187 publications

References 9 publications

Exergy analysis of a combined heat and power plant with integrated lignocellulosic ethanol production

Exergy analysis of a combined heat and power plant with integrated lignocellulosic ethanol production

Model-based plantwide optimization of large scale lignocellulosic bioethanol plants

Dynamic modeling and validation of a biomass hydrothermal pretreatment process—a demonstration scale study

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