利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

64 条记录 (耗时 0.045 秒)

    Process to produce biofuels from biomass
    13.
    发明授权
    Process to produce biofuels from biomass 有权
    从生物质生产生物燃料的过程

    公开(公告)号：US09222028B2

    公开(公告)日：2015-12-29

    申请号：US13332297

    申请日：2011-12-20

    申请人： Joseph Broun Powell ,  Juben Nemchand Chheda

    发明人： Joseph Broun Powell ,  Juben Nemchand Chheda

    IPC分类号： C07C1/00 ,  C10G1/00 ,  C07G1/00 ,  C10G45/00

    CPC分类号： C10G1/00 ,  C07G1/00 ,  C10G45/00 ,  C10G2300/1014 ,  C10G2300/202 ,  C10G2300/4081 ,  C10G2300/44 ,  Y02E50/13 ,  Y02P30/20 ,  Y02T50/678

    摘要： Biofuels can be produced by: (i) providing a biomass containing celluloses, hemicelluloses, lignin, nitrogen compounds and sulfur compounds; (ii) removing sulfur compounds and nitrogen compounds from the biomass by contacting the biomass with a digestive solvent to form a pretreated biomass containing carbohydrates and having less than 35% of the sulfur content and less than 35% of the nitrogen content of untreated biomass on a dry mass basis; (iii) contacting the pretreated biomass directly with hydrogen in the presence of a hydrogenolysis catalyst to form a plurality of oxygenated intermediates, and (vi) processing at least a portion of the oxygenated intermediates to form a liquid fuel.

    摘要翻译： 生物燃料可通过以下方式生产：（i）提供含有纤维素，半纤维素，木质素，氮化合物和硫化合物的生物质; （ii）通过使生物质与消化溶剂接触来除去生物质中的硫化合物和氮化合物，以形成含有碳水化合物的预处理的生物质，并且具有少于35％的硫含量和小于未处理生物质的氮含量的35％ 干质量; （iii）在氢解催化剂存在下将经预处理的生物质与氢气直接接触以形成多个含氧中间体，和（vi）处理至少一部分氧化中间体以形成液体燃料。

    HETEROGENEOUS PROMOTION OF OXIRANE HYDROFORMYLATION
    14.
    发明申请
    HETEROGENEOUS PROMOTION OF OXIRANE HYDROFORMYLATION 审中-公开
    异构促进氧化水解

    公开(公告)号：US20090163742A1

    公开(公告)日：2009-06-25

    申请号：US12337374

    申请日：2008-12-17

    申请人： Stephen Blake Mullin ,  Joseph Broun Powell ,  Paul Richard Weider

    发明人： Stephen Blake Mullin ,  Joseph Broun Powell ,  Paul Richard Weider

    IPC分类号： C07C45/00

    CPC分类号： C07C45/58 ,  C07C47/19

    摘要： A process for making betahydroxyaldehydes such as 3-hydroxypropanal which comprises intimately contacting (a) an oxirane, (b) carbon monoxide, (c) a reducing agent such as hydrogen, (d) from about 0.01 to about 1 weight percent, basis cobalt metal, of a cobalt hydroformylation catalyst which is optionally complexed with a tertiary phosphine ligand, and (e) a heterogeneous, preferably solid, metal promoter used at a molar ratio of 0.05, preferably 0.15, to 100 moles of heterogeneous metal relative to the moles of soluble cobalt hydroformylation catalyst.

    摘要翻译： 一种制备β-羟基醛例如3-羟基丙醛的方法，其包括使（a）环氧乙烷，（b）一氧化碳，（c）还原剂如氢气，（d）约0.01至约1重量％ 金属，钴加氢甲酰化催化剂，其任选与叔膦配体络合，和（e）非均相的，优选固体的金属促进剂，其摩尔比为0.05，优选0.15至100摩尔异相金属，相对于摩尔数 的可溶性羰基羰基化催化剂。

    Preparation method
    17.
    发明授权
    Preparation method 失效
    制备方法

    公开(公告)号：US06989469B2

    公开(公告)日：2006-01-24

    申请号：US10648072

    申请日：2003-08-26

    申请人： David Cleve Eubanks ,  Raymond Lawrence June ,  Timothy Michael Nisbet ,  Joseph Broun Powell ,  Marinus Van Zwienen

    发明人： David Cleve Eubanks ,  Raymond Lawrence June ,  Timothy Michael Nisbet ,  Joseph Broun Powell ,  Marinus Van Zwienen

    IPC分类号： C07C1/00

    CPC分类号： C07C1/24 ,  C07C15/46

    摘要： The invention pertains to a method of preparing styrene or substituted styrene involving (1) converting a mixture containing alkylbenzene hydroperoxide or substituted alkylbenzene hydroperoxide to a mixture containing phenyl alkanol or substituted phenyl alkanol and (2) dehydrating the phenyl alkanol or substituted phenyl alkanol, characterized by oxidizing an alkene to an alkylene oxide in step (1) in the presence of a heterogenous catalyst and dehydrating the phenyl alkanol or substituted phenyl alkanol in step (2) in the presence of a homogenous dehydration catalyst to obtain styrene or substituted styrene.

    摘要翻译： 本发明涉及制备苯乙烯或取代苯乙烯的方法，其涉及（1）将含有烷基苯氢过氧化物或取代的烷基苯氢过氧化物的混合物转化为含有苯基链烷醇或取代的苯基链烷醇的混合物和（2）使苯基链烷醇或取代的苯基链烷醇脱水， 在异种催化剂的存在下，在步骤（1）中将烯烃氧化成烯化氧，并且在步骤（2）中使苯基链烷醇或取代的苯基链烷醇在均相脱水催化剂存在下脱水得到苯乙烯或取代的苯乙烯。

    Method for removal of MW176 cyclic acetal formed during the production of 1,3-propanediol
    18.
    发明授权
    Method for removal of MW176 cyclic acetal formed during the production of 1,3-propanediol 失效
    在1,3-丙二醇生产过程中形成的MW176环状缩醛的去除方法

    公开(公告)号：US06969779B2

    公开(公告)日：2005-11-29

    申请号：US10676690

    申请日：2003-10-01

    申请人： Stephen Edward Brewer ,  Zaida Diaz ,  Joseph Broun Powell ,  Paul Richard Weider ,  Glenn Charles Komplin ,  Robert Lawrence Blackbourn

    发明人： Stephen Edward Brewer ,  Zaida Diaz ,  Joseph Broun Powell ,  Paul Richard Weider ,  Glenn Charles Komplin ,  Robert Lawrence Blackbourn

    IPC分类号： C07C29/141 ,  C07C29/80 ,  C07C29/88 ,  C07C27/04 ,  C07C27/26 ,  C07C29/14 ,  C07C29/74 ,  C07C31/18

    CPC分类号： C07C29/141 ,  C07C29/80 ,  C07C29/88 ,  C07C31/205

    摘要： The present invention is an improvement upon the process for the production of 1,3-propanediol (PDO) wherein an aqueous solution of 3-hydroxypropanal (HPA) is formed, and the HPA is subjected to hydrogenation to produce a crude PDO mixture comprising PDO, water, MW176 acetal, and high and low volatility materials, wherein the crude PDO mixture is dried to produce a first overhead stream comprising water and some high volatility materials and a dried crude PDO mixture as a first distillate bottoms stream comprising PDO, MW176 acetal, and low volatility materials, and wherein the dried crude PDO mixture is distilled to produce a second overhead stream comprising some high volatility materials, a middle stream comprising PDO and MW176 acetal, and a second distillate bottoms stream comprising PDO and low volatility materials. The improvement on this process comprises treating the crude PDO mixture and/or the dried crude PDO mixture and/or the PDO product with an acidic zeolite, an acid form cation exchange resin, or a soluble acid to convert the MW176 cyclic acetal to more volatile materials which can be easily separated from PDO by distillation.

    摘要翻译： 本发明是制备其中形成3-羟基丙醛（HPA）的水溶液的1,3-丙二醇（PDO）的方法的改进，并且将HPA进行氢化以制备包含PDO的粗制PDO混合物 ，水，MW176缩醛和高低挥发性材料，其中将粗PDO混合物干燥以产生包含水和一些高挥发性材料的第一塔顶料流，以及干燥的粗PDO混合物作为包含PDO，MW176缩醛的第一馏出物塔底料流 和低挥发性材料，并且其中将干燥的粗PDO混合物蒸馏以产生包含一些高挥发性材料的第二塔顶料流，包含PDO和MW176缩醛的中间料流和包含PDO和低挥发性材料的第二馏出物塔底料流。 该方法的改进包括用酸性沸石，酸形阳离子交换树脂或可溶性酸处理粗PDO混合物和/或干燥的粗PDO混合物和/或PDO产物，以将MW176环状缩醛转化为更易挥发的 可以通过蒸馏容易地与PDO分离的材料。

    Process for preparing alkanediols
    20.
    发明授权
    Process for preparing alkanediols 失效
    制备烷二醇的方法

    公开(公告)号：US06180838B2

    公开(公告)日：2001-01-30

    申请号：US08618734

    申请日：1996-03-20

    申请人： Lynn Henry Slaugh ,  Paul Richard Weider ,  Joseph Broun Powell

    发明人： Lynn Henry Slaugh ,  Paul Richard Weider ,  Joseph Broun Powell

    IPC分类号： C07C2704

    CPC分类号： B01J31/04 ,  B01J31/0268 ,  B01J31/20 ,  B01J31/2234 ,  B01J31/26 ,  B01J31/4046 ,  B01J2231/48 ,  B01J2531/822 ,  C07C29/141 ,  C07C29/16 ,  C07C45/58 ,  C07C45/80 ,  Y02P20/584 ,  C07C47/19 ,  C07C31/205 ,  C07C31/207

    摘要： An alkanediol such as 1,3-propanediol is prepared in a process which involves reacting an alkylene oxide with carbon monoxide and hydrogen in an essentially non-water-miscible solvent in the presence of a non-phosphine-ligated rhodium catalyst and a catalyst promoter to produce an intermediate product mixture containing a hydroxyalkanal in an amount less than 15 wt %; extracting the hydroxyalkanal from the intermediate product mixture into an aqueous liquid at a temperature less than about 100° C. and separating the aqueous phase containing hydroxyalkanal from the organic phase containing rhodium catalyst; hydrogenating the hydroxyalkanal in the aqueous phase to an alkanediol; and recovering the alkanediol. The process enables the production of an alkanediol such as 1,3-propanediol in high yields and selectivity without the use of a phosphine ligand-modified rhodium catalyst.

    摘要翻译： 在包含非磷化氢连接的铑催化剂和催化剂促进剂的存在下，使烯化氧与一氧化碳和氢气在基本上不与水混合的溶剂中进行反应的方法制备了1,3-二醇， 以产生含有小于15重量％的量的羟基卡那尔的中间产物混合物; 在低于约100℃的温度下将羟基卡那酸从中间产物混合物中提取成含水液体，并将含有羟基卡那酸的水相与含铑催化剂的有机相分离; 将水相中的羟基卡那酸氢化成链烷二醇; 并回收链烷二醇。该方法能够以高产率和选择性生产链烷二醇如1,3-丙二醇，而不需要使用膦配体改性的铑催化剂。