中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

262 records (took 0.015 seconds)

    BIOREFINING COMPOUNDS AND ORGANOCATALYTIC UPGRADING METHODS
    97.
    发明申请
    BIOREFINING COMPOUNDS AND ORGANOCATALYTIC UPGRADING METHODS 有权
    生物化合物和有机增殖方法

    公开(公告)号：US20170044124A1

    公开(公告)日：2017-02-16

    申请号：US15272324

    申请日：2016-09-21

    Applicant: COLORADO STATE UNIVERSITY RESEARCH FOUNDATION

    Inventor： Eugene Y. CHEN ,  Dajiang LIU

    IPC: C07D307/46 ,  C10L1/185 ,  C07D307/12

    CPC classification number: C07D307/46 ,  C07D307/12 ,  C07D407/06 ,  C10L1/026 ,  C10L1/1855 ,  Y02E50/13 ,  Y02P30/20

    Abstract: The invention provides new methods for the direct umpolung self-condensation of 5-hydroxymethylfurfural (HMF) by organocatalysis, thereby upgrading the readily available substrate into 5,5′-di(hydroxymethyl) furoin (DHMF). While many efficient catalyst systems have been developed for conversion of plant biomass resources into HMF, the invention now provides methods to convert such nonfood biomass directly into DHMF by a simple process as described herein. The invention also provides highly effective new methods for upgrading other biomass furaldehydes and related compound to liquid fuels. The methods include the organocatalytic self-condensation (umpolung) of biomass furaldehydes into (C8-C12)furoin intermediates, followed by hydrogenation, etherification or esterification into oxygenated biodiesel, or hydrodeoxygenation by metal-acid tandem catalysis into premium hydrocarbon fuels.

    Abstract translation: 本发明通过有机催化提供了5-羟甲基糠醛（HMF）的直接umpolung自缩合的新方法，从而将容易获得的底物升级成5,5'-二（羟甲基）呋喃蛋白（DHMF）。 虽然已经开发了许多有效的催化剂体系用于将植物生物质资源转化为HMF，但是本发明现在提供了通过本文所述的简单方法将这种非食用生物质直接转化成DHMF的方法。 本发明还提供了用于将其它生物物质的醛和相关化合物升级为液体燃料的高效的新方法。 方法包括将生物质糠醛的有机催化自缩合（umpolung）转化为（C8-C12）糠醛中间体，然后氢化，醚化或酯化成氧化生物柴油，或通过金属酸串联催化加氢脱氧成优质烃燃料。

    PROCESS FOR PREPARING CYCLIC ACETALS WHICH CAN BE USED AS FUEL COMPONENTS
    98.
    发明申请
    PROCESS FOR PREPARING CYCLIC ACETALS WHICH CAN BE USED AS FUEL COMPONENTS 审中-公开
    制备可用作燃料组分的循环乙醇的方法

    公开(公告)号：US20170029401A1

    公开(公告)日：2017-02-02

    申请号：US15302819

    申请日：2015-04-03

    Applicant: ENI S.P.A.

    Inventor： Giulio ASSANELLI ,  Alberto Renato DE ANGELIS

    IPC: C07D317/12 ,  C10L1/185

    CPC classification number: C07D317/12 ,  C07D317/26 ,  C10L1/1855 ,  C10L2200/0469

    Abstract: The present invention relates to a process for preparing cyclic acetals having general formula (I) wherein Y and Y′, equal to or different from each other, are selected from H and a group OR, R being a linear or branched alkyl containing from 1 to 8 carbon atoms, comprising at least the following phases: (i) providing a reaction mixture comprising at least one vicinal diol having formula (II) Z—CH2-CHOH—CH2OH wherein Z is selected from H and a group OR′, R′ being a linear or branched alkyl containing from 1 to 8 carbon atoms, said mixture being substantially free of aldehydes having general formula R1—CHO, wherein R1 is a linear or branched alkyl containing from 1 to 6 carbon atoms, possibly substituted by an alkoxide group OR111, wherein RIII is an alkyl containing from 1 to 4 carbon atoms; (ii) thermally treating said reaction mixture at a temperature within the range of 100° C.-300° C. in the presence of at least one acid catalyst, obtaining said compound having formula (I). The acetals having formula (I) can be used as fuel components.

    Abstract translation: 本发明涉及一种制备具有通式（I）的环状缩醛的方法，其中Y和Y'彼此相同或不同，选自H和OR，R是直链或支链烷基，其含有1 至少8个碳原子，包括至少以下相：（i）提供包含至少一种具有式（II）的邻二醇Z-CH 2 -CHOH-CH 2 OH的反应混合物，其中Z选自H和OR'，R '是含有1至8个碳原子的直链或支链烷基，所述混合物基本上不含具有通式RI-CHO的醛，其中RI是含有1至6个碳原子的直链或支链烷基，可能被烷氧基取代 基团OR111，其中RIII是含有1至4个碳原子的烷基; （ii）在至少一种酸催化剂存在下，在100℃-300℃范围内的温度下对所述反应混合物进行热处理，得到具有式（I）的化合物。 具有式（I）的缩醛可以用作燃料组分。

Patent Agency Ranking