PROCESS FOR TREATING A LIGNOCELLULOSIC BIOMASS

• Main Authors: BALCU IONEL, MIRICA MARIUS CONSTANTIN, IORGA MIRELA IOANA, POP RALUCA OANA, MACARIE AMALIA CORINA, PETER FRANCISC, SEGNEANU ADINA ELENA
• Format: Patent
• Language: English; Romanian
• Published: 30.03.2012
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; APPARATUS THEREFOR; CHEMISTRY; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; NATURAL GAS; PAPER-MAKING; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF CELLULOSE; PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TEXTILES

The invention relates to a process for treating a lignocellulosic biomass employed for obtaining a bioethanol fuel. According to the invention, the process is carried out by enzymatic hydrolysis, by mixing homogenization of 80...90% by weight lignocellulosic material consisting of hardwood, softwood and grassy lignocellulose, in a slightly acid or basic medium, with 10...20% 0.1N HCl solution or 1% NaOH solution, at a temperature of less than 0°C and a pressure of less than 760 torr, during a time interval of 1...24 h, to obtain a product having a content of 55...75% homo-polymers of the cellulose and hemicellulose type and mono-saccharides of the pentose and hexose type. Invenţia se referă la un procedeu de tratare a unei biomase lignocelulozice, utilizată la obţinerea unui combustibil bioetanol. Procedeul conform invenţiei se realizează prin hidroliză enzimatică, prin omogenizarea prin amestecare a 80...90% în greutate material lignocelulozic constând din lemn de esenţă tare, lemn de moale şi lignoceluloză ierboasă, într-un mediu slab acid sau bazic, cu 10...20% soluţie 0,1N de HCl sau 1% de NaOH, la o temperatură sub 0°C şi o presiune sub 760 torri, într-un interval de timp de 1...24 h, cu obţinerea unui produs având un conţinut de 55...75% homopolimeri detimp celuloză şi hemiceluloză, şi monozaharide de tip pentoze şi hexoze.