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358 条记录 (耗时 0.025 秒)

    Production of furfural from biomass
    43.
    发明授权
    Production of furfural from biomass 有权
    生物质生产糠醛

    公开(公告)号：US08524925B2

    公开(公告)日：2013-09-03

    申请号：US13285745

    申请日：2011-10-31

    申请人： Subramaniam Sabesan ,  Christina Jacy Spado

    发明人： Subramaniam Sabesan ,  Christina Jacy Spado

    IPC分类号： C07D307/50

    CPC分类号： C07D307/50

    摘要： Processes for producing furfural from biomass are provided. The processes use a metal halide in aqueous solutions of water-miscible and can provide a furfural yield of greater than 70%.

    摘要翻译： 提供了从生物质产生糠醛的方法。 该方法在与水混溶的水溶液中使用金属卤化物，并且可以提供大于70％的糠醛产率。

    PROCESSES FOR MAKING FURFURALS
    44.
    发明申请
    PROCESSES FOR MAKING FURFURALS 有权
    制作芙蓉的工艺

    公开(公告)号：US20130172582A1

    公开(公告)日：2013-07-04

    申请号：US13729436

    申请日：2012-12-28

    申请人： E I DU PONT DE NEMOURS AND COMPANY

    发明人： Keith W. Hutchenson ,  Michael Stephen McKinnon ,  Bhuma Rajagopalan

    IPC分类号： C07D307/50

    CPC分类号： C07D307/50

    摘要： Processes for making furfural and 5-hydroxymethylfurfural from sugars are provided. The processes can be carried out using a batch process or a continuous mode of operation. An aqueous sugar solution is pressurized with CO2, thereby producing carbonic acid in situ that catalyzes the dehydration reaction to produce furfural from C5 sugars and 5-methylhydroxyfurfural from C6 sugars.

    摘要翻译： 提供从糖制备糠醛和5-羟甲基糠醛的方法。 这些过程可以使用批处理或连续操作模式进行。 糖水溶液用二氧化碳加压，由此产生碳酸，催化脱水反应从C5糖和5-甲基羟基糠醛从C6糖产生糠醛。

    One-step catalytic conversion of biomass-derived carbohydrates to liquid fuels
    45.
    发明申请
    One-step catalytic conversion of biomass-derived carbohydrates to liquid fuels 有权
    将生物质衍生的碳水化合物一步催化转化为液体燃料

    公开(公告)号：US20110282079A1

    公开(公告)日：2011-11-17

    申请号：US12930602

    申请日：2011-01-11

    申请人： Ayusman Sen ,  Weiran Yang

    发明人： Ayusman Sen ,  Weiran Yang

    IPC分类号： C07D307/50

    CPC分类号： C10L1/1857 ,  C07D307/50 ,  C10L1/02 ,  C10L1/1855 ,  Y02P20/582

    摘要： The invention relates to a method for manufacture of hydrocarbon fuels and oxygenated hydrocarbon fuels such as alkyl substituted tetrahydrofurans such as 2,5-dimethyltetrahydrofuran, 2-methyltetrahydrofuran, 5-methylfurfural and mixtures thereof. The method generally entails forming a mixture of reactants that includes carbonaceous material, water, a metal catalyst and an acid reacting that mixture in the presence of hydrogen. The reaction is performed at a temperature and for a time sufficient to produce a furan type hydrocarbon fuel. The process may be adapted to provide continuous manufacture of hydrocarbon fuels such as a furan type fuel.

    摘要翻译： 本发明涉及烃燃料和含氧烃燃料如烷基取代的四氢呋喃如2,5-二甲基四氢呋喃，2-甲基四氢呋喃，5-甲基糠醛及其混合物的制备方法。 该方法通常需要形成包含碳质材料，水，金属催化剂和在氢存在下与该混合物反应的酸的反应物的混合物。 反应在足以产生呋喃型烃燃料的温度和时间下进行。 该方法可以适于提供烃燃料例如呋喃型燃料的连续制造。

    Method and system for disposal of furfural wastewater and method and system for furfural production
    46.
    发明申请
    Method and system for disposal of furfural wastewater and method and system for furfural production 有权
    糠醛废水处理方法与系统及糠醛生产方法与系统

    公开(公告)号：US20090194407A1

    公开(公告)日：2009-08-06

    申请号：US12308153

    申请日：2006-11-08

    申请人： Yilin Tang ,  Chengzhen Jiang ,  Shaofeng Gao ,  Dongsheng Lv ,  Zujiang Shen ,  Xuanwei Suo

    发明人： Yilin Tang ,  Chengzhen Jiang ,  Shaofeng Gao ,  Dongsheng Lv ,  Zujiang Shen ,  Xuanwei Suo

    IPC分类号： C02F1/16 ,  C07D307/50 ,  C02F1/04

    CPC分类号： C07D307/50 ,  B01D3/143 ,  B01D3/322 ,  C02F1/048

    摘要： A method and system for disposal of furfural wastewater, wherein raw crop material is transported into a hydrolysis reactor after crushed and mixed with acid to be hydrolyzed to form raw furfural liquid, and then said raw furfural liquid is transported into a distillation column to be distilled, during which furfural wastewater is discharged from said distillation column. Firstly said furfural wastewater is transported into a wastewater evaporation system to be heated it into wastewater vapor which is then transported back into said hydrolysis reactor to form recycle of said furfural wastewater. Wastewater vapor residues generated therein can be utilized directly to combust in boiler, mix with acid, or prepare end product acetate. The system for disposal of furfural wastewater comprises at least a wastewater evaporation system connecting with a heat resource which is one of steam, electricity, coal, oil, gas, plant straws or wastewater vapor residues. The present invention further provides a method and system for furfural production utilizing said method and system for disposing the wastewater. The present invention realizes furfural production with no pollution.

    摘要翻译： 一种处理糠醛废水的方法和系统，其中将原料经粉碎后与水解反应器输送到水解反应器中进行水解，形成原始的糠醛液体，然后将所述原料糠醛液体输送至蒸馏塔进行蒸馏 其中糠醛废水从所述蒸馏塔排出。 首先，将糠醛废水运送到废水蒸发系统中，将其加热到废水蒸气中，然后运送回所述水解反应器中，形成所述糠醛废水的再循环。 其中产生的废水蒸气残留物可直接用于锅炉燃烧，与酸混合，或制备乙酸终产物。 处理糠醛废水的系统至少包括与蒸汽，电力，煤，油，天然气，植物秸秆或废水蒸气残留物之一的热源连接的废水蒸发系统。 本发明还提供了利用所述废水处理方法和系统进行糠醛生产的方法和系统。 本发明实现了无污染的糠醛生产。

    Method of recovering furfural from organic pulping liquor
    48.
    发明授权
    Method of recovering furfural from organic pulping liquor 失效
    从有机制浆液中回收糠醛的方法

    公开(公告)号：US5788812A

    公开(公告)日：1998-08-04

    申请号：US488306

    申请日：1995-06-07

    申请人： Richard C. Agar ,  Jairo H. Lora ,  Malcolm Cronlund ,  Chih Fae Wu ,  Gopal C. Goyal ,  Stephen R. Winner ,  Mikhail N. Raskin ,  Raphael Katzen ,  Ron LeBlanc

    发明人： Richard C. Agar ,  Jairo H. Lora ,  Malcolm Cronlund ,  Chih Fae Wu ,  Gopal C. Goyal ,  Stephen R. Winner ,  Mikhail N. Raskin ,  Raphael Katzen ,  Ron LeBlanc

    IPC分类号： C07D307/50 ,  D21C3/20 ,  D21C11/00

    CPC分类号： D21C3/20 ,  C07D307/50 ,  D21C11/0007

    摘要： This invention provides for the recovery of lignin and other by-products from the pulping of fibrous plant material. In accordance with this invention, solvents and filtrates are recovered and recycled for reuse. This results in significant solvent and energy savings. Filtrates from the bleaching and delignification of the pulp are recycled for reuse in pulping, separation, and recovery of lignin and other by-products which results in significant energy savings and mitigation if not the elimination of pollution typically associated with bleaching. This invention also relates to products derived from the process and apparatus for carrying out the process. Lignins of various molecular weights and by-products of the pulping process are also recovered. The lignins are precipitated in high yields and at a high rate from a black liquor produced by pulping wood at high temperature and pressures. As a by-product of this process a purified furfural product is recovered. This furfural may be recycled for use in the recovery of the low molecular weight lignin of this process.

    摘要翻译： 本发明提供从纤维植物材料的制浆中回收木质素和其它副产物。 根据本发明，回收溶剂和滤液并循环再利用。 这导致显着的溶剂和能量节省。 来自纸浆漂白和脱木质素的滤液被再循环用于制浆，分离和回收木质素和其它副产物，如果不消除通常与漂白相关的污染，则可以显着节能和减轻。 本发明还涉及从用于实施该方法的方法和装置得到的产物。 各种分子量的木质素和制浆过程的副产物也被回收。 木质素以高产率和高速率从由高温和高压制浆木浆产生的黑液中沉淀出来。 作为该方法的副产物，回收了纯化的糠醛产物。 该糠醛可以再循环用于回收该方法的低分子量木质素。

    Combined process for thermally and chemically treating lignocellulose-containing biomass and for producing furfural and cellulose-containing fiber masses
    49.
    发明授权
    Combined process for thermally and chemically treating lignocellulose-containing biomass and for producing furfural and cellulose-containing fiber masses 失效
    用于热和化学处理含木素纤维素的生物质和用于生产糠醛和含纤维素的纤维块的组合方法

    公开(公告)号：US4971657A

    公开(公告)日：1990-11-20

    申请号：US194032

    申请日：1988-05-12

    申请人： Gerard Avignon ,  Wolfgang Jaeggle ,  Horst Steinmuller ,  Thomas Steiner

    发明人： Gerard Avignon ,  Wolfgang Jaeggle ,  Horst Steinmuller ,  Thomas Steiner

    IPC分类号： C07D307/50 ,  D21C3/22

    CPC分类号： C07D307/50 ,  D21C3/22

    摘要： A process for the thermal and chemical treatment of lignocellulose-containing biomass and for the production of furfural and cellulose-containing fiber masses. In order to ensure a high yield of furfural:lignocellulose-containing biomass is continuously fed into a cooker containing a cooking liquor and, upon heating of the biomass in a heating zone and guidance of the heated biomass through a consecutive retention zone, cellulose or pretreated biomass is continuously withdrawn from the cooker,cooking liquor is continuously withdrawn from the cooker,the cooking liquor withdrawn is continuously fed to a furfural production plant, andthe cooking liquor at least largely freed from pentoses and furfural is continuously returned to the cooker, wherein heating may be effected by direct steam or via the cooking liquor.

    摘要翻译： 一种用于热和化学处理含木素纤维素的生物质和用于生产含糠醛和纤维素的纤维块的方法。 为了确保高产量的糠醛：将含木素纤维素的生物质连续地供入含有蒸煮液的炊具中，并且在加热区中加热生物质并通过连续保留区引导加热的生物质，纤维素或预处理 生物质从炊具中连续取出，蒸煮液从炊具中连续取出，取出的蒸煮液被连续送入糠醛生产设备，至少大部分从戊糖和糠醛中除去的蒸煮液体连续返回到炊具，其中 加热可以通过直接蒸汽或通过蒸煮液进行。

    Method for the recovery of furfural, acetic acid and formic acid
    50.
    发明授权
    Method for the recovery of furfural, acetic acid and formic acid 失效
    回收糠醛，乙酸和甲酸的方法

    公开(公告)号：US4401514A

    公开(公告)日：1983-08-30

    申请号：US245076

    申请日：1981-03-18

    申请人： Walter Kanzler ,  Johannes Schedler

    发明人： Walter Kanzler ,  Johannes Schedler

    IPC分类号： C07C51/44 ,  C07D307/50 ,  D21C11/00 ,  C07C51/48

    CPC分类号： D21C11/0007 ,  C07C51/44 ,  C07D307/50 ,  Y10S203/06

    摘要： A method of recovering or extracting chemicals, such as furfural, formic acid, acetic acid and other organic compounds from acidic hydrolysates of plants or vegetable matter, especially spent sulfite liquors after conversion of the pentosans into pentoses and then into furfural by heating the hydrolysate in an acidic environment. The conversion of the pentosans pentoses into furfural, preferably with acidulation, is accomplished in a counterflow or countercurrent flow heat exchanger and a reactor, preferably a tubular reactor. The hydrolysate which has additionally been heated and converted in the reactor is used as a heating medium or heat carrier for heating up the hydrolysate which is converted in the counterflow heat exchanger, whereupon there is recovered as the distillate furfural in conjunction with the formic acid, acetic acid and the like.

    摘要翻译： 一种在将戊聚糖转化成戊糖后，从植物或植物物质的酸性水解产物，特别是废亚硫酸盐液中回收或提取化学物质如糠醛，甲酸和乙酸等有机化合物的方法，然后通过加热水解产物 酸性环境。 将戊聚糖戊糖转化成糠醛，优选酸化，是在逆流或逆流流动的热交换器和反应器，优选管式反应器中完成的。 在反应器中另外加热和转化的水解产物用作加热介质或热载体，用于加热在逆流热交换器中转化的水解产物，随后与甲酸一起作为馏出物糠醛回收， 乙酸等。