Enhanced biofuel processes utilizing separate lignin and carbohydrate processing of lignocellulose

Melin, Kristian; Kohl, Thomas; Koskinen, Jukka; Hurme, Markku

doi:10.1080/17597269.2015.1118777

Cited by 4 publications

(3 citation statements)

References 55 publications

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“…New generation hydrolytic enzymes will function near theoretical limits and modified energy plants will serve as improved substrates for the new enzymes or will harbor genes encoding enzymes necessary for self-deconstruction, which are activated before harvest or at normal conclusion of the growth cycle (Himmel et al, 2007). Melin et al, (2016) reported about enhanced biofuel production utilizing separate lignin and carbohydrate processing of lignocellulose to produce ethanol and methane via syngas from biomass. Glucose derived from cellulosic paper sludge by acid hydrolysis (Arkenol, USA) has also been successfully used by the author Dr. Savas G. Anastassiadis (USA) to produce lactic acid by a new developed continuous fermentation process reaching continuously more than 100 g/l, which was slightly better than using pure dextrose powder.…”

Section: St Generation Biomassmentioning

confidence: 99%

Carbon Sources for Biomass, Food, Fossils, Biofuels and Biotechnology - Review Article

Anastassiadis¹

2016

World J. Biol. Biotechnol.

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Carbon atom Carbon atom is most important and abundant constituent of existing and new generated biological mater and biomass and the basis of all forms of life on earth. It is involved in the composition and construction of organic micro- and macromolecules, cells and living organisms, storage molecules, fossils, fossil fuels, biofuels and energy resources of living and nonliving organic matter. Initially originated from atmospheric carbon dioxide, it is absorbed and incorporated into organic molecules by photosynthetic plants and microorganisms through photosynthetic processes to form glucose and other less or more complex organic molecules, enabling and sustaining life on Earth. A semantic part of CO2 has been captured, trapped and immobilized in various forms of fossils, not participating in biogeochemical carbon cycles for millions of years, or is dissolved in oceans. Carbon sources is also one of most important parameters, strongly influencing microbial growth and the accumulation of cellular metabolites, fermentation technologies, process economics and feasibility of industrial production. Advanced developments in recombinant technologies, such as metabolic and genetic engineering, systems and synthetic biology, as well as in bioengineering, biotechnology, industrial microbiology and fermentation technology will expand the opportunities of literally unseen microbial world.

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Section: St Generation Biomassmentioning

confidence: 99%

Carbon Sources for Biomass, Food, Fossils, Biofuels and Biotechnology - Review Article

Anastassiadis¹

2016

World J. Biol. Biotechnol.

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“…Current and planned biomass projects will produce lignin in surplus of that needed for energy, and processes are needed to efficiently separate lignin from cellulose and convert lignin to value‐added products . The separated lignin can be converted to materials which are substitutes for petrochemicals and biofuels . A number of other uses for lignin have been proposed owing to its ability to act as a dispersant, emulsifier and sequestrant .…”

Section: Introductionmentioning

confidence: 99%

“…3 -6 The separated lignin can be converted to materials which are substitutes for petrochemicals 2,5,7 -9 and biofuels. 10,11 A number of other uses for lignin have been proposed owing to its ability to act as a dispersant, emulsifier and sequestrant. 12 Lignin has also been used as a precursor of carbon fibers and a component of plastics and composites.…”

Section: Introductionmentioning

confidence: 99%

Flocculation of wheat straw soda lignin by hemoglobin and chicken blood: effects of cationic polymer or calcium chloride

Piazza

Lora²,

García

2016

J of Chemical Tech & Biotech

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BACKGROUND Lignin is the largest byproduct of biomass processing. Flocculation could replace strong acid used in lignin recovery and be useful for the cleanup of lignin from residual processing waters. Commercial nonrenewable flocculants are known to be effective with lignin, but the investigation of renewable lignin flocculants has received little attention. RESULTS Methods were developed to economize on the use of biobased flocculant for wheat straw lignin flocculation. Thus, 43% less hemoglobin (HEM) and 39% less chicken blood (CB) were needed when the Zeta potential was increased by the co‐addition of poly (diallydimethylammonium chloride) (pDADMAC). Supernatant chemical oxygen demand (COD) was reduced by 78% with optimal pDADMAC and CB. Up to 94% less HEM was needed for lignin flocculation with the co‐addition of CaCl2. CONCLUSION Charge neutralization promoted lignin flocculation with coflocculants pDADMAC/HEM or pDADMAC/CB. Some lignin flocculation was noted at higher levels of CaCl2 due to reduced lignin solubility. Charge neutralization contributed to lignin flocculation at lower CaCl2 levels and high HEM. A novel finding was that divalent cation bridging promoted lignin flocculation in the presence of CaCl2 at lower levels of HEM. Lignin flocculated with HEM‐CaCl2 is possibly useful as a protein‐enriched animal feed. © 2016 Society of Chemical Industry

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A Gibbs energy minimization study on the biomass gasification process for methanol synthesis

Emami-Meibodi¹,

Elahifard²

2017

Biofuels

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Enhanced biofuel processes utilizing separate lignin and carbohydrate processing of lignocellulose

Cited by 4 publications

References 55 publications

Carbon Sources for Biomass, Food, Fossils, Biofuels and Biotechnology - Review Article

Carbon Sources for Biomass, Food, Fossils, Biofuels and Biotechnology - Review Article

Flocculation of wheat straw soda lignin by hemoglobin and chicken blood: effects of cationic polymer or calcium chloride

A Gibbs energy minimization study on the biomass gasification process for methanol synthesis

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