C - Chemistry – Metallurgy – 08 – B
Patent
C - Chemistry, Metallurgy
08
B
C08B 1/00 (2006.01) C01C 1/10 (2006.01) C12P 19/00 (2006.01) C12P 19/02 (2006.01) C13K 1/02 (2006.01)
Patent
CA 2650860
A process for the treatment of biomass to render structural carbohydrates more accessible and/or digestible using concentrated ammonium hydroxide with or without anhydrous ammonia addition, is described. The process preferably uses steam to strip ammonia from the biomass for recycling. The process yields of monosaccharides from the structural carbohydrates are good, particularly as measured by the enzymatic hydrolysis of the structural carbohydrates. The monosaccharides are used as animal feeds and energy sources for ethanol production.
L'invention concerne un procédé de traitement d'une biomasse destiné à rendre les carbohydrates structuraux plus accessibles et/ou digestibles en utilisant de l'hydroxyde d'ammonium concentré avec ou sans ajout d'ammoniac anhydre. Le procédé utilise de préférence de la vapeur pour éliminer l'ammoniac de la biomasse pour être recyclé. Les rendements du procédé en monosaccharides à partir des carbohydrates structuraux sont bons, notamment les rendements tels que mesurés par hydrolyse enzymatique des carbohydrates structuraux. Les monosaccharides sont utilisés en tant qu'aliments pour animaux et sources d'énergie pour la production d'éthanol.
Dale Bruce E.
Laser Mark
Lynd Lee R.
Dartmouth College
Macrae & Co.
Michigan State University
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