公开(公告)号：US4478644A

公开(公告)日：1984-10-23

申请号：US486163

申请日：1983-04-15

申请人： Pierre Berger ,  Maurice Gelus

发明人： Pierre Berger ,  Maurice Gelus

IPC分类号： B30B9/16 ,  C13K1/02 ,  C13K1/00

CPC分类号： B30B9/163 ,  B30B9/16 ,  C13K1/02

摘要： Process and device for hydrolyzing cellulose material in an extruder with two parallel screws in which the material introduced in the moist condition and, transported by the screws is malaxated, heated to a temperature of above 200.degree. C. in the downstream part of the extruder where it is contacted with an acid solution and progressively compressed, to a pressure higher than the saturated vapor pressure of the liquid phase of the hydrolyzed material at the temperature reached in the downstream part and maintained by a control device for the evacuation of the material. According to the invention, there is provided in the control device for the evacuation of the material, a separation of the liquid phase and of the solid phase from hydrolyzed material with maintenance of the output pressure, through the use for this purpose of a second extruder comprising two screws with axes perpendicular to that of the hydrolysis extruder, rotated within a sleeve into the central part of which the hydrolyzed material coming from the first extruder is discharged and in which a pressure is maintained higher than the saturated vapor pressure of the liquid phase by regulating the extrusion characteristics to form, at the downstream end of the output extruder, a plug of compressed material fluid-tight at said pressure, the latter being regulated by means of a pressure reducing valve controlling the evacuation of the liquid phase concentrated in the upstream part of the extruder and in which glucose formed by hydrolysis is dissolved.

摘要翻译： 在挤出机中用两个平行的螺丝水解纤维素材料的方法和装置，其中在潮湿状态下引入的材料并通过螺杆传送的材料被加热，在挤出机的下游部分被加热到高于200℃的温度 使其与酸溶液接触并逐渐压缩至在下游部分达到的温度下高于水解材料的液相的饱和蒸气压的压力，并由用于抽出材料的控制装置维持。 根据本发明，通过用于第二挤出机的用途，在控制装置中提供了用于抽出材料的液相和固相与水解材料的分离，同时维持输出压力 包括具有垂直于水解挤出机的两个轴线的两个螺钉，在套筒内旋转到其中心部分，来自第一挤出机的水解材料被排出，并且其中保持压力高于液相的饱和蒸气压 通过调节挤出特性，在输出挤出机的下游端形成在所述压力下流体密封的压缩材料塞，后者通过减压阀来调节，所述减压阀控制集中在 挤出机的上游部分，其中通过水解形成的葡萄糖溶解。