Process and adsorbent for separating ethanol and associated oxygenates from a biofermentation system
    31.
    发明授权
    Process and adsorbent for separating ethanol and associated oxygenates from a biofermentation system 有权
    用于从生物发酵系统中分离乙醇和相关含氧化合物的方法和吸附剂

    公开(公告)号:US08658845B2

    公开(公告)日:2014-02-25

    申请号:US13478160

    申请日:2012-05-23

    IPC分类号: C07C29/76

    摘要: Disclosed is a process and an adsorbent for the separation of ethanol associated oxygenates from a dilute mixture of ethanol and associated oxygenates in water in the presence of organic compounds derived from a biofermentation process. After pretreatment, the separation is carried out in a simulated moving bed adsorption system employing an stationary phase adsorbent comprising fluorinated carbon or modified C18 silica gel selective for the adsorption of ethanol and associated oxygenates, such as 2,3-butanediol, with a mobile phase desorbent selected from the group consisting of methanol, ethanol, propanol, and methyl tertiary butyl ether. The process is useful for removing water from dilute aqueous mixtures of organic compounds comprising ethanol in dilute concentration in water and produced by fermentation, biomass extraction, biocatalytic and enzymatic processes which are not economically recoverable by conventional distillation methods.

    摘要翻译: 公开了一种用于在衍生自生物发酵过程的有机化合物存在下从乙醇和相关含氧化合物的稀释混合物中分离乙醇相关氧化物的方法和吸附剂。 在预处理之后,在模拟移动床吸附系统中进行分离,所述吸附系统使用包含氟化碳的固定相吸附剂或选择性地用于吸附乙醇和相关氧化物如2,3-丁二醇的改性C18硅胶与流动相 选自甲醇,乙醇,丙醇和甲基叔丁基醚的解吸剂。 该方法可用于从含水稀释浓度的乙醇的有机化合物的稀释含水混合物中除去水,并通过发酵,生物提取,生物催化和酶法,通过常规蒸馏方法经济可回收而产生。

    MANNOSE PRODUCTION FROM PALM KERNEL MEAL USING SIMULATED MOVING BED SEPARATION
    32.
    发明申请
    MANNOSE PRODUCTION FROM PALM KERNEL MEAL USING SIMULATED MOVING BED SEPARATION 有权
    使用模拟移动床分离从PALM KERNEL MEAL的MANNOSE生产

    公开(公告)号:US20140039180A1

    公开(公告)日:2014-02-06

    申请号:US13567447

    申请日:2012-08-06

    IPC分类号: C07H1/08

    摘要: Disclosed is a process for the production of d-mannose from fermented palm oil kernel meal using a continuous SMB separation process. The process is useful for providing a simplified processing route to providing high purity d-mannose. The SMB process and the SMB cycle was operated to provide a high purity mannose stream comprising d-mannose, salts, and color agents, a primary raffinate comprising glucose, other sugars and salts, and a secondary raffinate consisting essentially of the mobile phase desorbent. In the SMB cycle, the secondary raffinate was recycled to the SMB process as the mobile phase desorbent without further desalination. The highly pure mannose stream was further treated to remove color agents and salts prior to subsequent steps of precipitation or crystallization and drying. D-mannose is useful as a food additive, as a sweetener, as a texturizer, as a stabilizer, or as a humectant.

    摘要翻译: 公开了一种使用连续的SMB分离方法从发酵的棕榈油籽粒中生产D-甘露糖的方法。 该方法可用于提供简化的处理途径以提供高纯度的D-甘露糖。 操作SMB方法和SMB循环以提供包含D-甘露糖,盐和着色剂的高纯度甘露糖流,包含葡萄糖,其它糖和盐的初级提余液和基本上由流动相解吸剂组成的二级萃余液。 在SMB循环中,作为流动相解吸剂而将二次萃余液再循环至SMB方法,而不再进一步脱盐。 在随后的沉淀或结晶和干燥步骤之前,进一步处理高纯度甘露糖流以除去着色剂和盐。 D-甘露糖可用作食品添加剂,甜味剂,增白剂,稳定剂或湿润剂。

    Process using plate exchanger with high thermal density heat transfer
fluid and simultaneous reaction
    39.
    发明授权
    Process using plate exchanger with high thermal density heat transfer fluid and simultaneous reaction 失效
    使用具有高热密度传热流体的板式换热器和同时反应的方法

    公开(公告)号:US6143943A

    公开(公告)日:2000-11-07

    申请号:US149848

    申请日:1998-09-08

    摘要: A channel reactor arrangement and a process uses a heat exchange fluid with a high thermal density to indirectly heat or cool the reactants by indirect heat exchange. The system brings the efficiency of plate reactor arrangements to the effectiveness of high heat capacity heat exchange fluids such as molten salts and liquid metals. The channel reactor arrangement maintains a limited temperature gradient through the channels at all points to improve process selectivity. This type of arrangement is of a particular advantage where the reaction zone uses a heterogeneous catalyst system within a heat exchanging reaction section. The plate and channel heat transfer arrangement is particularly beneficial because of its high surface area provided per unit volume of channels. The high surface area of plates is particularly beneficial for heat transfer fluids having a high thermal density since the mass flow of the fluid, for lower thermal density fluids, will often end up being the limiting heat input variable where the approach temperature between the heat exchange channels and reaction channels is limited. Highly exothermic processes such as oxidation reactions or endothermic processes such as dehydrogenation achieve the most benefit from this invention.

    摘要翻译: 通道反应器装置和方法使用具有高热密度的热交换流体通过间接热交换间接加热或冷却反应物。 该系统将板式反应器装置的效率提高到高热容量热交换流体如熔盐和液态金属的有效性。 通道反应器装置在所有点保持通过通道的有限的温度梯度以改善工艺选择性。 这种排列是特别有利的,其中反应区在热交换反应段内使用非均相催化剂体系。 板和通道热传递装置是特别有益的,因为其每单位体积的通道提供高表面积。 板的高表面积对于具有高热密度的传热流体特别有利,因为用于较低热密度流体的流体的质量流量通常将最终成为限制热输入变量,其中热交换 渠道和反应渠道有限。 高度放热的过程如氧化反应或吸热过程如脱氢从本发明获得最大的收益。

    Alkylation of aromatics using a metal cation-modified friedel-crafts
type catalyst
    40.
    发明授权
    Alkylation of aromatics using a metal cation-modified friedel-crafts type catalyst 失效
    使用金属阳离子改性的Friedel-Crafts型催化剂烷基化芳族化合物

    公开(公告)号:US5962760A

    公开(公告)日:1999-10-05

    申请号:US905762

    申请日:1997-08-04

    摘要: A process for the alkylation of aromatic compounds with an olefin or alkyl halide having from 1 to 24 carbon atoms utilizes a novel catalyst comprising: a) a refractory inorganic oxide, b) the reaction product of a first metal halide and bound surface hydroxyl groups of the refractory inorganic oxide, c) a second metal cation, and d) optionally a zerovalent third metal. The refractory inorganic oxide is selected from the group consisting of alumina, titania, zirconia, chromia, silica, boria, silica-alumina, and combinations thereof and the first metal halide is a fluoride, chloride, or bromide of aluminum, gallium, zirconium, or boron. The second metal cation is selected from the group consisting of: monovalent metal cations in an amount from 0.0026 up to about 0.20 gram atoms per 100 grams refractory inorganic oxide for lithium, potassium, cerium, rubidium, silver, and copper, and from 0.012 to about 0.20 gram atoms for sodium; and alkaline earth metal cations in an amount from about 0.0013 up to about 0.01 gram atoms per 100 grams of refractory inorganic oxide for beryllium, strontium, and barium, and in an amount from about 0.004 up to about 0.1 gram atoms per 100 grams support for magnesium and calcium, or combinations thereof. The third metal is selected from the group consisting of platinum, palladium, nickel ruthenium, rhodium, osmium and iridium, and any combination thereof. These novel catalysts are effective in other alkylation reactions including motor fuel alkylation.

    摘要翻译: 使用具有1至24个碳原子的烯烃或烷基卤化物烷基化芳族化合物的方法使用新型催化剂,其包含:a)耐火无机氧化物,b)第一金属卤化物与结合表面羟基的反应产物 耐火无机氧化物,c)第二金属阳离子,和d)任选的第零金属。 耐火无机氧化物选自氧化铝,二氧化钛,氧化锆,氧化铬,二氧化硅,氧化硼,二氧化硅 - 氧化铝及其组合,第一金属卤化物是铝,镓,锆等的氟化物,氯化物或溴化物, 或硼。 第二金属阳离子选自:一价金属阳离子,其量为0.0026至约0.20克原子/ 100克锂,钾,铈,铷,银和铜的耐火无机氧化物,并且从0.012至 钠约0.20克原子; 和碱土金属阳离子,其量为约0.0013至约0.01克原子/ 100克铍,锶和钡的耐火无机氧化物,其量为约0.004至约0.1克原子/ 100克载体 镁和钙,或其组合。 第三种金属选自铂,钯,镍钌,铑,锇和铱,以及它们的任何组合。 这些新型催化剂在其他烷基化反应(包括汽油燃料烷基化)中是有效的。