Method and devices for the continuous processing of...

C - Chemistry – Metallurgy – 07 – D

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C07D 307/50 (2006.01) C12P 7/10 (2006.01) C13K 1/02 (2006.01) D21C 3/24 (2006.01)

Patent

CA 2578139

By means of the continuous pressure hydrolysis of lignocellulose material and subsequent enzymatic hydrolysis of solid unhydrolysed residues is obtained glucose, to which starch raw materials are added and all of which undergoes amylolytic cleavage and spirituous fermentation. Ethanol, furfural, acetic and ligin are obtained. The device, which comprises the filling unit, hydrolysers, expanders, distilling and rectifying columns is represented in that the continuous worm pressure filling unit (13) consists of segments formed by the body (94) with single-threated conveyer worms (86) place on the shaft (85). Between the worms there is at least one steam ring (88), which conically widens on the input side of the raw material. In the outlet filler (93) with the reducing part leading into the first hydrolyser (22) a pressure identical to that of the first hydrolyser (22) is achieved. The last hydrolyser (24) is connected to the first rectifying column (43) for furfural and to the section of the cellulolytic enzyme hydrolysis, amylolytic cleavage, and ethanol fermentation.

Au moyen de l'hydrolyse à pression continue d~un matériau ligno-cellulosique et de l'hydrolyse enzymatique subséquente de résidus solides non hydrolysés, on obtient du glucose, auquel des matières premières à base d'amidon sont ajoutées et lesquelles sont toutes soumises à un clivage amylolytique et à une fermentation alcoolique. De l'éthanol, du furfural, de l'acide acétique et de la lignine sont ainsi obtenus. Ce dispositif, qui comprend l'élément de remplissage, des hydrolyseurs, des expanseurs, des colonnes de distillation et de rectification, est représenté en ce que l'élément d~injection de pression continue à vis sans fin (13) est constituée de segments formés par le corps (94), à l~aide de vis sans fin transporteuses à une seule entrée (86), placées sur l'axe (85). Entre les vis sans fin est disposée au moins une bague à vapeur (88), laquelle s'élargit de manière conique sur la surface d~entrée de la matière première. Dans le produit de remplissage (93), à l~aide de la partie de réduction conduisant vers le premier hydrolyseur (22), une pression identique à celle du premier hydrolyseur (22) est exercée. Le dernier hydrolyseur (24) est relié à la première colonne de rectification (43) du furfural et à la section d'hydrolyse enzymatique cellulolytique, de clivage amylolytique, et de fermentation éthanolique.

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