Electrostatic precipitation process
    2.
    发明授权
    Electrostatic precipitation process 失效
    静电沉淀过程

    公开(公告)号:US4072477A

    公开(公告)日:1978-02-07

    申请号:US560980

    申请日:1975-03-21

    IPC分类号: B03C3/16 B03C3/01

    CPC分类号: B03C3/16 Y10S55/38

    摘要: An electrostatic precipitator which operates on the principle of mutual repulsion of charged particles to a grounded wall. The solid particle laden gas stream enters a collecting section where additional particles in the form of droplets, normally water, are injected in the form of a fine spray into the solid particle laden gas stream. The solid particles and the additional particles are electrostatically charged either by conventional corona or by injecting the droplets from a charged nozzle and as the charged particles pass through the grounded section of the precipitator, a fraction of the water particles and solids are forced to the grounded wall by electric fields created by the space charge. Precipitated solid particles are entrained in the coalesced water which runs down the walls and is drained from the precipitator. Several stages of precipitation may be used or alternatively, methods such as continuously injecting additional particles into the collector along its length.

    摘要翻译: 静电除尘器,其操作原理是将带电粒子相互排斥到接地壁。 载有固体颗粒的气体流进入收集部分,其中液滴形式的通常为水的附加颗粒以精细喷雾的形式注入载有固体颗粒的气流中。 固体颗粒和附加颗粒通过常规电晕或通过从带电喷嘴注入液滴进行静电充电,并且当带电颗粒通过除尘器的接地部分时,一部分水颗粒和固体被迫接地 墙壁由电场造成的空间费。 沉淀的固体颗粒被夹带在沿墙壁延伸的聚结的水中,并从沉淀器中排出。 可以使用几个沉淀阶段,或者替代地,诸如沿着其长度将附加颗粒连续地注入到收集器中的方法。

    Conversion of cellulosic materials to sugar
    3.
    发明授权
    Conversion of cellulosic materials to sugar 失效
    将纤维素材料转化为糖

    公开(公告)号:US3972775A

    公开(公告)日:1976-08-03

    申请号:US484010

    申请日:1974-06-28

    摘要: A process for the production of sugar, mainly glucose, by the enzymatic degradation of cellulosic materials, particularly cellulosic wastes, which comprises hydrolyzing the cellulosic material in the presence of cellulase enzyme to produce a sugar solution and recovering from the hydrolysis products a major proportion of the cellulase enzyme used in the hydrolysis reaction for re-use. At least a portion of the required makeup cellulase enzyme is produced in a two-stage operation wherein, in the first stage, a portion of the output sugar solution is utilized to grow a cellulase-secreting microorganism, and, in the second stage, cellulase enzyme formation is induced in the microorganism-containing culture medium by the addition of an appropriate inducer, such as a cellulosic material. Cellulase enzyme is precipitated from the culture liquid by the addition of an organic solvent material, such as a low molecular weight alkyl ketone or alcohol, and the cellulase precipitate is then fed to the hydrolysis reaction.

    摘要翻译: 一种通过纤维素材料,特别是纤维素废物的酶降解来生产糖,主要是葡萄糖的方法,其包括在纤维素酶存在下水解纤维素材料以产生糖溶液并从水解产物中回收大部分 用于水解反应中的纤维素酶用于再利用。 至少一部分所需的补充纤维素酶在两阶段操作中产生,其中在第一阶段中,将一部分输出的糖溶液用于生长纤维素酶分泌微生物,并且在第二阶段中,纤维素酶 通过添加合适的诱导剂如纤维素材料在含微生物的培养基中诱导酶的形成。 纤维素酶通过加入有机溶剂材料如低分子量烷基酮或醇从培养液中沉淀出来,然后将纤维素酶沉淀物加入到水解反应中。

    Fermentative alcohol production
    5.
    发明授权
    Fermentative alcohol production 失效
    发酵酒生产

    公开(公告)号:US4359533A

    公开(公告)日:1982-11-16

    申请号:US210485

    申请日:1980-11-26

    IPC分类号: B01D3/00 C12P7/06

    摘要: An improved fermentation process for producing alcohol which includes the combination of vacuum fermentation and vacuum distillation. Preferably, the vacuum distillation is carried out in two phases, one a fermentor proper operated at atmospheric pressure and a flash phase operated at reduced pressure with recycle of fermentation brew having a reduced alcohol content to the fermentor, using vapor recompression heating of the flash-pot recycle stream to heat the flash-pot or the distillation step, and using "water load balancing" (i.e., the molar ratio of water in the fermentor feed is the same as the molar ratio of water in the distillation overhead).

    摘要翻译: 用于生产醇的改进的发酵方法,其包括真空发酵和真空蒸馏的组合。 优选地,真空蒸馏分两个阶段进行,一个是在大气压下正常运行的发酵罐和一个在减压下操作的闪蒸相,使用具有降低的醇含量的发酵酿造酵母再循环到发酵罐中, 罐循环流以加热闪蒸罐或蒸馏步骤,并使用“水负载平衡”(即,发酵罐进料中的水的摩尔比与蒸馏塔顶馏出物中水的摩尔比相同)。