Well-to-wheel analysis of energy use and greenhouse gas emissions of acetone-butanol-ethanol from corn and corn stover

Desta, Melaku Geboye; Lee, Timothy J.; Wu, Han

doi:10.1016/j.renene.2021.01.079

Cited by 14 publications

(3 citation statements)

References 31 publications

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“…After pretreatment, the matrix porosity increases, which maximizes the contact of the enzyme with the substance and improves the effective hydrolysis of cellulose. On the other hand, the pretreatment may generate furfural, 5-hydroxymethlyfurfural from the monomer of hemicellulose and cellulose, and syringaldehyde, vanillin, and benzaldehyde from lignin. , Thus, extra steps, such as lime, can be added to remove byproducts that may inhibit hydrolysis and later fermentation. , The existing pretreatment techniques mainly include physical (steam explosion, liquid hot water, extrusion, microwave, and ultrasonic treatment), chemical (acid pretreatment, alkaline pretreatment, ionic liquids pretreatment, organosolv pretreatment), and biological (fungi, brigades, bacteria, etc.) methods .…”

Section: Process Conceptmentioning

confidence: 99%

“…54,55 Thus, extra steps, such as lime, can be added to remove byproducts that may inhibit hydrolysis and later fermentation. 56,57 The existing pretreatment techniques mainly include physical (steam explosion, liquid hot water, extrusion, microwave, and ultrasonic treatment), chemical (acid pretreatment, alkaline pretreatment, ionic liquids pretreatment, organosolv pretreatment), and biological (fungi, brigades, bacteria, etc.) methods.…”

Section: ■ Process Conceptmentioning

confidence: 99%

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Techno-Economic Analysis of Upgrading Corn Stover-Based Acetone, n-Butanol, and Ethanol to Higher Ketones and Alcohols: Fuels or Fine Chemicals?

Xie

Zhang³

2023

ACS Sustainable Chem. Eng.

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Acetone−butanol−ethanol (ABE) fermentation is a traditional industrial exploitation with a history of 100 years and the second largest fermentation industry in the world, second only to bioethanol fermentation. However, low ABE concentration in the fermentation broth, a complex separation process, and high separation cost are the bottlenecks of the biobutanol industry. Therefore, developing an efficient and energy-saving ABE upgrading process gives another approach to the reindustrialization of ABE fermentation, even with the completeness of fossil resource-based products. Here, we report on a coupling salting-out catalytic process intensification technique in which acetone was alkylated with ethanol and 1-butanol by Pd/C + K 3 PO 4 , and the higher ketone and alcohol products were separated by the salting-out effect of K 3 PO 4 . The higher ketones and alcohols were experimentally obtained with >70% mass fractions at 200−250 °C under the fermentation-derived H 2 atmosphere and can be used as fuel precursors or fine chemicals. Aspen Plus was employed to simulate corn stover-based biobutanol production and the upgrading process through a series of analyses on raw materials cost, capital cost, operating cost, product selling prices, net present values, and sensitivities. A comparison between fuel precursors and fine chemicals was carried out, and fine chemicals turned out to be the preferred choice if the selectivity of the products and further purification process could be optimized. The results of a sensitivity analysis show that the ABE concentration process is one of the most energy-intensive processes. Reducing the costs of raw materials is one strategy to improve the completeness of ABE fermentation.

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Section: Process Conceptmentioning

confidence: 99%

Section: ■ Process Conceptmentioning

confidence: 99%

Techno-Economic Analysis of Upgrading Corn Stover-Based Acetone, n-Butanol, and Ethanol to Higher Ketones and Alcohols: Fuels or Fine Chemicals?

Xie

Zhang³

2023

ACS Sustainable Chem. Eng.

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show abstract

“…Renewable fuels emit fewer greenhouse gases than low-carbon electricity, and current energy trends show a new modification policy being implemented in which various new sectors are explored [7]. Acetone, butanol, and ethanol achieve 80% fossil fuel savings and deliver fewer GHG emissions compared to gasoline and diesel fuels [8]. The third generation of the feedstock is algae biofuels, where climatic conditions are required for the growth of these biofuels, and the advantages are that they can be produced in an artificial environment [9].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the emissions of different biofuels with fossil fuel through the utilization of GREET Model

Hira¹,

Chaudhary²,

Dogra

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Biofuels are the alternate solutions in the fossil fuel family and has been mainly utilized for the reduction in the emissions that are been generated through I.C. engine combustion. This comparison study basically works on the emission characteristics of various types of biofuels with the existing fossil fuel utilized in an internal combustion engine. Through the research work it has been concluded that the biofuels or contributing to the lower emission levels as compared to fossil fuels. According to the Greet model study, methanol produced by gasification is the best recommended fuel for combustion with the lowest emission levels. This study shown that using methanol fuel produced by gasification results in the lowest GHG emission value of 11.44 gm using the GREET model.

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Sustainability assessment of biotechnological processes: LCA and LCC of second-generation biobutanol production

Marzocchella

Chirone

Paulillo

et al. 2022

Assessing Progress Towards Sustainability

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Well-to-wheel analysis of energy use and greenhouse gas emissions of acetone-butanol-ethanol from corn and corn stover

Cited by 14 publications

References 31 publications

Techno-Economic Analysis of Upgrading Corn Stover-Based Acetone, n-Butanol, and Ethanol to Higher Ketones and Alcohols: Fuels or Fine Chemicals?

Techno-Economic Analysis of Upgrading Corn Stover-Based Acetone, n-Butanol, and Ethanol to Higher Ketones and Alcohols: Fuels or Fine Chemicals?

Comparison of the emissions of different biofuels with fossil fuel through the utilization of GREET Model

Sustainability assessment of biotechnological processes: LCA and LCC of second-generation biobutanol production

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