Ethanol from sugar cane: EX‐FERM concept

Rolz, C.; Cabrera, S. de; García, Ricardo

doi:10.1002/bit.260211215

Cited by 32 publications

(8 citation statements)

References 2 publications

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“…A 20.0 in.high x 2.6 in. O.D (2.5 liter) cylinder with external tubing loop (connected at 0.4 and 15.2 in heights), similar to the EX-FERM system (Rolz et al 1979). b.…”

Section: Methodsmentioning

confidence: 99%

“…Recent evidence suggested that sugar cane juice (Lyness and Doelle, 1981) can provide the crucial mineral salts, vitamins and cofactors required for Z. mobilis growth and conversion of sugar cane sucrose to ethanol. Rolz et al (1979) introduced the simultaneous extraction fermentation of small (O.18-O.87 in~ sugar cane chips to ethanol in yeast cultures grown in cylindric vessel, having external loop circulation, as a sole agitation device: the EX-FERM system. Rolz and Cabrera (1980) showed that sugar in small sugar cane chips was well extracted, hydrolysed and converted to ethanol in yields similar to those obtained from shreaded cane pith.…”

Section: Introductionmentioning

confidence: 99%

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Ethanol production by Zymomonas mobilis CP4 from sugar cane chips

et al. 1981

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The fermentation of large sugar cane chips (l. O-l.5 in) to ethanol by Zymomonas mobilis CP4 (Z. mobilis) was studied in two glass fermentors operating with ~circulation for agitation (the EX-FERM type): a. A laboratory scaleC2.5 liter) cylindrical vessel; b. A bench scale (8 liter) wide vessel. Z. mobilis cultures consumed 89-96% of the cane sucrose, converting it to ethanoT-by 90-97% of the theoretical yield in the laboratory scale fermentor and by 83-90% in the bench scale fermentor culture. Comparative Saccharomyces spp. cultures in laboratory fermentor consumed 96-98% of the cane sucrose, with ethanol conversion of only 75-79% of the theoretical yield.These preliminary results indicated that sucrose in agricultural size sugar cane chips was ethanol fermentable as compared to small size sugar cane chips or to sugar cane juice.Z. mobilis CP4 cultures converted sucrose more efficiently to ethanol than ~acc a-Ba-r-6myces spp. as shown in the laboratory scale fermentor studies.The ethanol yields in a wide bench scale fermentor cultures were slightly lower than in a laboratory fermentor.

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“…A 20.0 in.high x 2.6 in. O.D (2.5 liter) cylinder with external tubing loop (connected at 0.4 and 15.2 in heights), similar to the EX-FERM system (Rolz et al 1979). b.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ethanol production by Zymomonas mobilis CP4 from sugar cane chips

et al. 1981

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“…With present plant, the use of energy in crushing sugar-cane in order to produce the juice is about twice that of distillation, although the development of alternatives for the former procedure attracts much less attention than that for the latter. One approach which has been suggested is the direct fermentation of fresh pith or chopped cane (Rolz, de Cabrea and Garcia 1979), in packed. .…”

Section: Process Plantmentioning

confidence: 99%

Sugar-cane as an Energy Crop

Coombs¹

1984

Biotechnology and Genetic Engineering Reviews

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“…[3,5] The economic feasibility of this route has hardly been studied in other parts of the world. [6][7][8][9][10][11] Recent work includes the use of second generation biomass (bagasse) for the production of fuel and chemical-grade ethanol. [12] Supported by the Biorenewable Business Platform (BBP), an economic feasibility study was conducted on the integrated value chain of the sugar beet-to-ethanol-to-ethylene production.…”

Section: Introductionmentioning

confidence: 99%

Economic Feasibility of the Sugar Beet‐to‐Ethylene Value Chain

Althoff¹,

Biesheuvel

Kok

et al. 2013

ChemSusChem

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As part of a long-term strategy toward renewable feedstock, a feasibility study into options for the production of bioethylene by integrating the sugar beet-to-ethanol-to-ethylene value chain. Seven business cases were studied and tested for actual economic feasibility of alternative sugar-to-ethanol-to-ethylene routes in comparison to fossil-fuel alternatives. An elaborate model was developed to assess the relevant operational and financial aspects of each business case. The calculations indicate that bioethylene from sugar beet is not commercially viable under current market conditions. In light of expected global energy and feedstock prices it is also reasonable to expect that this will not change in the near future. To consider biorenewable sources as starting material, they need to be low in cost (compared to sugar beets) and also require less capital and energy-intensive methods for the conversion to chemicals. In general, European sugar prices will be too high for many chemical applications. Future efforts for in sugar-to-chemicals routes should, therefore, focus on integrated process routes and process intensification and/or on products that contain a significant part of the original carbohydrate backbone.

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Ethanol from sugar cane: EX‐FERM concept

Cited by 32 publications

References 2 publications

Ethanol production by Zymomonas mobilis CP4 from sugar cane chips

Ethanol production by Zymomonas mobilis CP4 from sugar cane chips

Sugar-cane as an Energy Crop

Economic Feasibility of the Sugar Beet‐to‐Ethylene Value Chain

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