Biomass Pretreatment Process
    41.
    发明申请
    Biomass Pretreatment Process 审中-公开
    生物质预处理工艺

    公开(公告)号:US20120214216A1

    公开(公告)日:2012-08-23

    申请号:US13458285

    申请日:2012-04-27

    IPC分类号: C12P7/10 C07C51/00

    摘要: A process is described for pretreating lignocellulosic biomass. The process comprises swelling the lignocellulosic biomass with an aqueous liquid. The pretreated lignocellulosic biomass may be used as a feedstock for the enzymatic conversion to ethanol, or in a thermal conversion. process to produce bio-oil. The pretreatment results in a greater yield and, in the case of a thermal conversion process, a better quality of the bio-oil. The pretreatment process may be used to adjust the composition and amount of inorganic material present in the lignocellulosic biomass material.

    摘要翻译: 描述了一种用于预处理木质纤维素生物质的方法。 该方法包括用含水液体使木质纤维素生物质膨胀。 预处理的木质纤维素生物质可以用作酶转化成乙醇或热转化的原料。 生产生物油的过程。 预处理导致更高的产量,并且在热转化过程的情况下,生物油的质量更好。 预处理方法可用于调节木质纤维素生物质材料中存在的无机材料的组成和量。

    Process for the preparation of doped pentasil-type zeolites using a doped reactant
    45.
    发明授权
    Process for the preparation of doped pentasil-type zeolites using a doped reactant 有权
    使用掺杂的反应物制备掺杂的pentasil型沸石的方法

    公开(公告)号:US06969692B2

    公开(公告)日:2005-11-29

    申请号:US10647632

    申请日:2003-08-25

    摘要: A process for the preparation of a metal-doped pentasil-type zeolite comprising the steps of: a) preparing an aqueous precursor mixture comprising a silicon source and an aluminum source, at least one of these sources being doped with a rare earth metal or a transition metal of Groups Vb–VIIIb, Ib, or IIb of the Periodic System, and b) thermally treating the precursor mixture to form a metal-doped pentasil-type zeolite. With this process, metal-doped pentasil-type zeolites can be prepared while the risk of precipitation of the dopant as a separate phase is minimized.

    摘要翻译: 一种制备金属掺杂的pentasil型沸石的方法,包括以下步骤:a)制备包含硅源和铝源的水性前体混合物,这些源中的至少一个掺杂有稀土金属或 元素周期系Vb-VIIIb族,Ib族或IIb族的过渡金属,和b)热处理前体混合物以形成金属掺杂的pentasil型沸石。 通过该方法,可以制备金属掺杂的pentasil型沸石,同时使作为分离相的掺杂剂的沉淀的风险最小化。

    Process for the preparation of catalysts comprising a pentasil-type zeolite
    47.
    发明授权
    Process for the preparation of catalysts comprising a pentasil-type zeolite 失效
    用于制备包含pentasil型沸石的催化剂的方法

    公开(公告)号:US06887457B2

    公开(公告)日:2005-05-03

    申请号:US10647853

    申请日:2003-08-25

    摘要: A process for the preparation of a composition comprising a pentasil-type zeolite, which process comprises the following steps:a) hydrothermally treating an aqueous slurry comprising an aluminium source, a silicon source, a seeding material, and optionally a divalent metal source, thereby forming a pentasil-type zeolite and at least one other compound, andb) shaping the product of step a). Examples of the at least one other compound are anionic clay, cationic clay, Si—Al cogel, and (pseudo)boehmite.

    摘要翻译: 一种制备包含pentasil型沸石的组合物的方法,该方法包括以下步骤:a)水热处理包含铝源,硅源,接种材料和任选的二价金属源的含水浆料,由此 形成pentasil型沸石和至少一种其它化合物,和b)使步骤a)的产物成形。 至少一种其他化合物的实例是阴离子粘土,阳离子粘土,Si-Al共凝胶和(假)勃姆石。

    Quasi-crystalline carboxylates
    48.
    发明授权
    Quasi-crystalline carboxylates 失效
    准结晶羧酸盐

    公开(公告)号:US06835364B2

    公开(公告)日:2004-12-28

    申请号:US10066079

    申请日:2002-01-31

    IPC分类号: C01B330

    摘要: The present invention provides new compositions of matter, referred to as quasi-crystalline carboxylates (QCCs), their preparation and use. The materials comprise a quasi-crystalline hydrated magnesium-aluminium hydroxy carboxylate and are characterised by the presence of at least a strong reflection in the powder X-ray diffraction pattern at a basal spacing in the range of 5 to 15 Å. The invention further relates to a process for preparing the QCCs, Mg—Al solid solutions and anionic clays under acidic conditions. The QCC is prepared by aging an acidic mixture of a magnesium carboxylate and an aluminium source. Calcination of the QCC results in a Mg—Al solid solution; rehydration of this solid solution gives an anionic clay.

    摘要翻译: 本发明提供新的物质组合物,称为准结晶羧酸盐(QCC),其制备和用途。 这些材料包含准晶体水合的镁 - 铝羟基羧酸盐,其特征在于在粉末X射线衍射图中存在至少在5至15范围内的基础间距的强反射。 本发明还涉及在酸性条件下制备QCC,Mg-Al固溶体和阴离子粘土的方法。 通过老化羧酸镁和铝源的酸性混合物来制备QCC。 煅烧QCC导致Mg-Al固溶体; 该固溶体的再水化产生阴离子粘土。

    Molecular sieves of faujasite structure
    49.
    发明授权
    Molecular sieves of faujasite structure 失效
    八面沸石结构分子筛

    公开(公告)号:US06756029B2

    公开(公告)日:2004-06-29

    申请号:US10164926

    申请日:2002-06-07

    IPC分类号: C01B3924

    摘要: A process for preparing molecular sieves of type Y faujasite structure is described, as well as pre-shaped bodies of faujasite structure type Y molecular sieves. The process comprises preparing a precursor gel from a source of silica-alumina or a source of alumina and a source of silica with a template agent at a SiO2/Al2O3 greater than 7 and suitable for forming a type Y zeolite, drying the precursor gel and contacting the dried precursor gel with steam, optionally followed by caustic washing, without the formation of crystalline phases other than type Y zeolite being observed. Advantageously, the pre-shaped bodies prepared with the precursor gel of Y zeolite, when subjected to the process of the invention, will have their outer surface covered by type Y zeolite crystals. The molecular sieves so obtained may be employed as catalysts or adsorbents in various processes of the chemical or oil industry.

    摘要翻译: 描述了制备Y型八面沸石结构的分子筛的方法,以及Y型分子筛的八面沸石结构体的预制体。 该方法包括从二氧化硅 - 氧化铝源或氧化铝源和二氧化硅源以二氧化硅/ Al 2 O 3大于7的模板剂制备前体凝胶并适于形成Y型沸石,干燥前体凝胶和 使干燥的前体凝胶与蒸汽接触,任选地随后进行苛性碱洗涤,而不形成除Y型沸石以外的结晶相。 有利的是,当用Y沸石的前体凝胶制备的预制体在进行本发明的方法时,其外表面将被Y型沸石晶体覆盖。 如此获得的分子筛可用作化学或石油工业的各种方法中的催化剂或吸附剂。