Combined temperature controlled water adsorption and two stage heat pump process for fuel ethanol dehydration
    152.
    发明授权
    Combined temperature controlled water adsorption and two stage heat pump process for fuel ethanol dehydration 有权
    组合温控水吸附和二级热泵工艺用于燃料乙醇脱水

    公开(公告)号:US08227648B2

    公开(公告)日:2012-07-24

    申请号:US12555450

    申请日:2009-09-08

    IPC分类号: C07C27/26 C07C31/22 C07C27/04

    摘要: Systems and processes for dehydration of a process stream in the production of motor fuel grade ethanol (MFGE) can include temperature controlled adsorption of water in the process stream, and heat pumping to transfer heat from the process stream to a heat sink using one or more stages of heat pumping. One stage of heat pumping can be achieved during the regeneration process of a temperature controlled adsorber by desorbing the adsorbed water at a thermal condition enabling useful heat recovery. Another stage of heat pumping can be achieved during the adsorption process of a temperature controlled adsorber by transferring the heat of water adsorption to a heat sink. The heat sink with respect to each stage of heat pumping can be a solids separation unit, such as a beer column.

    摘要翻译: 用于汽油燃料级乙醇(MFGE)生产中工艺流脱水的系统和方法可以包括对工艺流中的水的温度控制吸附,以及使用一个或多个工艺流将热量从工艺流传递到散热器的热泵送 热泵阶段。 在温度控制的吸附器的再生过程中可以实现一个阶段的热泵送,通过在有助于热回收的热条件下解吸吸附的水。 在温度控制吸附器的吸附过程中,通过将吸附热量传递给散热器可以实现另一阶段的热泵送。 相对于每个热泵阶段的散热器可以是固体分离单元,例如啤酒柱。

    Processes for the production of hydrogenated products
    154.
    发明授权
    Processes for the production of hydrogenated products 有权
    生产氢化产物的方法

    公开(公告)号:US08193375B2

    公开(公告)日:2012-06-05

    申请号:US13213565

    申请日:2011-08-19

    摘要: A process for making a hydrogenated product includes providing a clarified DAS-containing fermentation broth, distilling the broth to form an overhead that includes water and ammonia, and a liquid bottoms that includes MAS, at least some DAS, and at least about 20 wt % water, cooling and/or evaporating the bottoms, and optionally adding an antisolvent to the bottoms, to attain a temperature and composition sufficient to cause the bottoms to separate into a DAS-containing liquid portion and a MAS-containing solid portion that is substantially free of DAS, separating the solid portion from the liquid portion, recovering the solid portion, hydrogenating the second solid portion in the presence of at least one hydrogenation catalyst to produce the hydrogenated product comprising at least one of THF, GBL or BDO, and recovering the hydrogenated product.

    摘要翻译: 制备氢化产物的方法包括提供澄清的含DAS的发酵液,蒸馏培养液以形成包含水和氨的塔顶馏出物,以及液体塔底物,其包括MAS,至少一些DAS和至少约20wt% 水,冷却和/或蒸发塔底物,以及任选地向塔底物中加入抗溶剂,以获得足以使塔底物分离成含有DAS的液体部分的温度和组合物,以及基本上没有的含MAS的固体部分 的DAS,将固体部分与液体部分分离,回收固体部分,在至少一种氢化催化剂的存在下氢化第二固体部分以产生包含THF,GBL或BDO中的至少一种的氢化产物,并回收 氢化产物。

    Process for the preparation of alkylene glycol
    157.
    发明授权
    Process for the preparation of alkylene glycol 有权
    亚烷基二醇的制备方法

    公开(公告)号:US08110712B2

    公开(公告)日:2012-02-07

    申请号:US12420564

    申请日:2009-04-08

    IPC分类号: C07C27/04

    摘要: The invention provides a process for the preparation of an alkylene glycol from an alkylene oxide. Alkylene oxide reacts with carbon dioxide in the presence of a carboxylation catalyst to provide alkylene carbonate; alkylene carbonate reacts with water in the presence of a hydrolysis catalyst to provide alkylene glycol. An initial charge of the carboxylation catalyst and an initial charge of the hydrolysis catalyst are added, the degradation and activity of the hydrolysis catalyst are monitored, and when the activity of the hydrolysis catalyst has fallen below a minimum level, an additional charge of the hydrolysis catalyst is added.

    摘要翻译: 本发明提供了一种从烯化氧制备亚烷基二醇的方法。 在羧化催化剂存在下,环氧烷与二氧化碳反应得到碳酸亚烷基酯; 碳酸亚烷基酯在水解催化剂存在下与水反应,得到亚烷基二醇。 加入羧化催化剂的初始电荷和水解催化剂的初始电荷,监测水解催化剂的降解和活性,并且当水解催化剂的活性降至最低水平以下时,额外的水解电荷 加入催化剂。

    Separation of Vapor Crude Alcohol Product
    158.
    发明申请
    Separation of Vapor Crude Alcohol Product 有权
    蒸馏酒精产品分离

    公开(公告)号:US20120010436A1

    公开(公告)日:2012-01-12

    申请号:US13094450

    申请日:2011-04-26

    IPC分类号: C07C27/04

    摘要: Recovery of alcohol, in particular ethanol, by separating a vapor crude alcohol product obtained from the hydrogenation of acetic acid using a low energy process. The vapor crude ethanol product is separated in a column to produce a distillate stream comprising ethanol and at least one non-condensable gas. The vapor crude ethanol product may pass through a membrane before the first distillation column to separate the at least one non-condensable gas from the ethanol. The ethanol product is subsequently recovered from the distillate stream.

    摘要翻译: 通过使用低能量过程分离从乙酸氢化获得的蒸气粗醇产物来回收醇,特别是乙醇。 将蒸气粗乙醇产物在柱中分离以产生包含乙醇和至少一种不可冷凝气体的馏出物流。 蒸汽粗乙醇产物可以在第一蒸馏塔之前通过膜以将至少一种不可冷凝气体与乙醇分离。 随后从馏出物流中回收乙醇产物。

    Process, Plant, and Biofuel for Integrated Biofuel Production
    160.
    发明申请
    Process, Plant, and Biofuel for Integrated Biofuel Production 审中-公开
    一体化生物燃料生产的工艺,植物和生物燃料

    公开(公告)号:US20110076724A1

    公开(公告)日:2011-03-31

    申请号:US12815903

    申请日:2010-06-15

    摘要: This invention relates to a process, a plant, and a biofuel for integrated biofuel production, such as with butanol, biodiesel, and/or sugar product. The integrated process includes the step of removing hexose from a feedstock to form a lignocellulosic material. The process also includes the step of converting the hexose to butanol and/or a biodiesel material, and the step of depolymerizing lignocellulosic material to form pentose and a residue. The process also includes the step of converting the pentose to butanol and/or a biodiesel material.

    摘要翻译: 本发明涉及用于一体化生物燃料生产的方法,植物和生物燃料,例如用丁醇,生物柴油和/或糖产品。 整合方法包括从原料中除去己糖以形成木质纤维素材料的步骤。 该方法还包括将己糖转化为丁醇和/或生物柴油材料的步骤,以及解聚木质纤维素材料以形成戊糖和残余物的步骤。 该方法还包括将戊糖转化为丁醇和/或生物柴油材料的步骤。