METHODS FOR VICINAL DIOL SEPARATION

    公开(公告)号:US20210340088A1

    公开(公告)日:2021-11-04

    申请号:US17283090

    申请日:2019-10-07

    IPC分类号: C07C29/92 B01J19/18 B01J19/00

    摘要: The disclosure relates to methods for separating mixtures of polyols, in particular mixtures of two of more different vicinal diols having close boiling points, thus making them difficult or impossible to separate using conventional distillation techniques. The polyol mixture is reacted with an aldehyde or ketone acetalization agent to form one or more acetals as corresponding acetalization reaction products. The acetalization reaction products are more easily separable either from each other (such as via distillation) or from an unreacted vicinal diol (such as via extraction, settling, or other phase separation). After separation, hydrolysis is performed on the acetalization reaction products to recover the vicinal diols as separate, purified components. The methods provide cost-effective processes for separating different polyols originally formed in admixture.

    ELECTROLYZER REACTOR AND RELATED METHODS
    3.
    发明申请

    公开(公告)号:US20200240024A1

    公开(公告)日:2020-07-30

    申请号:US16845305

    申请日:2020-04-10

    IPC分类号: C25B3/04 C25B9/08

    摘要: The disclosure relates to an electrolyzer reactor suitable for the reduction of organic compounds. The reactor includes a membrane electrode assembly with freestanding metallic meshes which serve both as metallic electrode structures for electron transport as well as catalytic surfaces for electron generation and organic compound reduction. Suitable organic compounds for reduction include oxygenated and/or unsaturated hydrocarbon compounds, in particular those characteristic of bio-oil (e.g., alone or a multicomponent mixtures). The reactor and related methods provide a resource- and energy-efficient approach to organic compound reduction, in particular for bio-oil mixtures which can be conveniently upgraded at or near their point of production with minimal or no transportation.

    Integrated process of distillation with side reactors for synthesis of organic acid esters
    4.
    发明授权
    Integrated process of distillation with side reactors for synthesis of organic acid esters 有权
    用于合成有机酸酯的侧反应器的蒸馏的综合方法

    公开(公告)号:US09174920B1

    公开(公告)日:2015-11-03

    申请号:US14517325

    申请日:2014-10-17

    IPC分类号: C07C67/08 B01D3/00

    摘要: An integrated process and system for synthesis of organic-acid esters is provided. The method of synthesizing combines reaction and distillation where an organic acid and alcohol composition are passed through a distillation chamber having a plurality of zones. Side reactors are used for drawing off portions of the composition and then recycling them to the distillation column for further purification. Water is removed from a pre-reactor prior to insertion into the distillation column. An integrated heat integration system is contained within the distillation column for further purification and optimizing efficiency in the obtaining of the final product.

    摘要翻译: 提供了一种合成有机酸酯的方法和系统。 合成方法结合了反应和蒸馏,其中有机酸和醇组合物通过具有多个区域的蒸馏室。 侧反应器用于抽出组合物的一部分,然后将其再循环到蒸馏塔中以进一步纯化。 在插入蒸馏塔之前,将水从预反应器中取出。 在蒸馏塔内装有集成的热集成系统,用于进一步净化和优化获得最终产品的效率。

    Electrocatalytic Hydrogenation and Hydrodeoxygenation of Oxygenated and Unsaturated Organic Compounds
    5.
    发明申请
    Electrocatalytic Hydrogenation and Hydrodeoxygenation of Oxygenated and Unsaturated Organic Compounds 审中-公开
    氧化和不饱和有机化合物的电催化氢化和加氢脱氧

    公开(公告)号:US20150008139A1

    公开(公告)日:2015-01-08

    申请号:US14383048

    申请日:2013-03-05

    摘要: A process and related electrode composition are disclosed for the electrocatalytic hydrogenation and/or hydrodeoxygenation of biomass-derived bio-oil components by the production of hydrogen atoms on a catalyst surface followed by the reaction of the hydrogen atoms with the organic compounds in bio-oil. The catalyst is a metal supported on a monolithic high surface area material such as activated carbon cloth. Electrocatalytic hydrogenation and/or hydrodeoxygenation stabilizes the bio-oil under mild conditions to reduce coke formation and catalyst deactivation. The process converts oxygen-containing functionalities and unsaturated bonds into chemically reduced forms with an increased hydrogen content. The process is operated at mild conditions, which enables it to be a good means for stabilizing bio-oil to a form that can be stored and transported using metal containers and pipes.

    摘要翻译: 公开了一种方法和相关电极组合物,用于通过在催化剂表面上产生氢原子,然后氢生物与生物油中的有机化合物的反应进行电催化氢化和/或加氢脱氧生物质衍生的生物油组分 。 该催化剂是负载在诸如活性炭布的整体式高表面积材料上的金属。 电化学加氢和/或加氢脱氧在温和条件下稳定生物油,以减少焦炭形成和催化剂失活。 该方法将含氧官能团和不饱和键转化为具有增加的氢含量的化学还原形式。 该方法在温和的条件下运行,这使其成为将生物油稳定为可以使用金属容器和管道储存和运输的形式的良好手段。

    ELECTROCATALYTIC HYDROGENATION AND HYDRODEOXYGENATION OF OXYGENATED AND UNSATURATED ORGANIC COMPOUNDS
    6.
    发明申请
    ELECTROCATALYTIC HYDROGENATION AND HYDRODEOXYGENATION OF OXYGENATED AND UNSATURATED ORGANIC COMPOUNDS 有权
    氧化和不饱和有机化合物的电化学氢化和羟基氧化

    公开(公告)号:US20140110268A1

    公开(公告)日:2014-04-24

    申请号:US14061460

    申请日:2013-10-23

    IPC分类号: C25B3/04

    摘要: A process and related electrode composition are disclosed for the electrocatalytic hydrogenation and/or hydrodeoxygenation of organic substrates such as biomass-derived bio-oil components by the production of hydrogen atoms on a catalyst surface followed by the reaction of the hydrogen atoms with the organic reactants. Biomass fast pyrolysis-derived bio-oil is a liquid mixture containing hundreds of organic compounds with chemical functionalities that are corrosive to container materials and are prone to polymerization. A high surface area skeletal metal catalyst material such as Raney Nickel can be used as the cathode. Electrocatalytic hydrogenation and/or hydrodeoxygenation convert the organic substrates under mild conditions to reduce coke formation and catalyst deactivation. The process converts oxygen-containing functionalities and unsaturated bonds into chemically reduced forms with an increased hydrogen content. The process is operated at mild conditions, which enables it to be a good means for stabilizing bio-oil to a form that can be stored and transported using metal containers and pipes.

    摘要翻译: 公开了一种方法和相关的电极组合物,用于通过在催化剂表面上产生氢原子,然后氢原子与有机反应物的反应来进行电催化氢化和/或有机底物例如生物质衍生的生物油组分的加氢脱氧 。 生物质快速热解生物油是一种液体混合物,含有数百种具有对容器材料具有腐蚀性和易于聚合的化学官能团的有机化合物。 可以使用高表面积骨架金属催化剂材料如阮内镍作为阴极。 电化学氢化和/或加氢脱氧在温和条件下转化有机底物以减少焦炭形成和催化剂失活。 该方法将含氧官能团和不饱和键转化为具有增加的氢含量的化学还原形式。 该方法在温和的条件下运行,这使其成为将生物油稳定为可以使用金属容器和管道储存和运输的形式的良好手段。

    Electrolyzer reactor and related methods

    公开(公告)号:US11668014B2

    公开(公告)日:2023-06-06

    申请号:US16845305

    申请日:2020-04-10

    摘要: The disclosure relates to an electrolyzer reactor suitable for the reduction of organic compounds. The reactor includes a membrane electrode assembly with freestanding metallic meshes which serve both as metallic electrode structures for electron transport as well as catalytic surfaces for electron generation and organic compound reduction. Suitable organic compounds for reduction include oxygenated and/or unsaturated hydrocarbon compounds, in particular those characteristic of bio-oil (e.g., alone or a multicomponent mixtures). The reactor and related methods provide a resource- and energy-efficient approach to organic compound reduction, in particular for bio-oil mixtures which can be conveniently upgraded at or near their point of production with minimal or no transportation.

    Electrocatalytic hydrogenation and hydrodeoxygenation of oxygenated and unsaturated organic compounds

    公开(公告)号:US09951431B2

    公开(公告)日:2018-04-24

    申请号:US14061460

    申请日:2013-10-23

    IPC分类号: C25B3/04 C25B11/04 C25B9/00

    摘要: A process and related electrode composition are disclosed for the electrocatalytic hydrogenation and/or hydrodeoxygenation of organic substrates such as biomass-derived bio-oil components by the production of hydrogen atoms on a catalyst surface followed by the reaction of the hydrogen atoms with the organic reactants. Biomass fast pyrolysis-derived bio-oil is a liquid mixture containing hundreds of organic compounds with chemical functionalities that are corrosive to container materials and are prone to polymerization. A high surface area skeletal metal catalyst material such as Raney Nickel can be used as the cathode. Electrocatalytic hydrogenation and/or hydrodeoxygenation convert the organic substrates under mild conditions to reduce coke formation and catalyst deactivation. The process converts oxygen-containing functionalities and unsaturated bonds into chemically reduced forms with an increased hydrogen content. The process is operated at mild conditions, which enables it to be a good means for stabilizing bio-oil to a form that can be stored and transported using metal containers and pipes.