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8 条记录 (耗时 0.032 秒)

    Method of capturing sulfur in coal during combustion and gasification
    4.
    发明授权
    Method of capturing sulfur in coal during combustion and gasification 失效
    在燃烧和气化过程中捕集煤中的硫的方法

    公开(公告)号：US4936047A

    公开(公告)日：1990-06-26

    申请号：US186659

    申请日：1988-04-20

    申请人： Herman F. Feldmann ,  Byung C. Kim

    发明人： Herman F. Feldmann ,  Byung C. Kim

    IPC分类号： C10J3/00 ,  C10J3/54 ,  C10L9/02

    CPC分类号： F23B90/06 ,  C10J3/54 ,  C10L9/02 ,  C10J2300/0996

    摘要： A method of reducing the amount of gaseous sulfur compounds released during combustion of sulfur-containing fuel, comprising the steps of: (a) preparing a mixture of sulfur containing particulate fuel and a sulfur absorbent, such as calcium oxide, calcium hydroxide, calcium carbonate, lime, limestone, dolomite, or mixtures thereof; (b) exposing the mixture to a reducing atmosphere at a temperature of at least about 1500.degree. F., so as to convert at least a portion of the particulate fuel into a gaseous portion and a solid, char portion; and (c) combusting the char portion, thereby forming an ash containing sulfur fixed therein.

    摘要翻译： 一种减少含硫燃料燃烧过程中释放的气态硫化合物的量的方法，包括以下步骤：（a）制备含硫颗粒燃料和硫吸收剂如氧化钙，氢氧化钙，碳酸钙的混合物 ，石灰，石灰石，白云石或其混合物; （b）在至少约1500°F的温度下将混合物暴露于还原气氛中，以将至少一部分颗粒状燃料转化成气态部分和固态焦炭部分; 和（c）燃烧焦炭部分，从而形成固定在其中的含硫的灰分。

    Unspun acrylic staple fibers
    5.
    发明授权
    Unspun acrylic staple fibers 失效
    松散丙烯酸短纤维

    公开(公告)号：US5589264A

    公开(公告)日：1996-12-31

    申请号：US446287

    申请日：1995-05-22

    申请人： Han S. Yoon ,  Tae W. Son ,  Byung C. Kim ,  Chul J. Lee ,  Byung G. Min ,  Jae W. Cho

    发明人： Han S. Yoon ,  Tae W. Son ,  Byung C. Kim ,  Chul J. Lee ,  Byung G. Min ,  Jae W. Cho

    IPC分类号： D01D5/26 ,  D01F6/18 ,  D04H13/00 ,  D02G3/00

    CPC分类号： D01F6/18 ,  D01D5/26 ,  D04H13/00 ,  Y10T428/29 ,  Y10T428/2904 ,  Y10T428/2913

    摘要： A highly-oriented acrylic staple fiber prepared by simple extrusion of a PAN/H.sub.2 O melt in a gel crystalline state without spinning is provided. The acrylic fibers according to the present invention are characterized by the following properties: a degree of orientation between 80 and 97% observed by an X-ray diffraction; a length distribution ranging from 5 to 500 mm and a thickness distribution ranging from 5 to 500 .mu.m, a length to thickness ratio ranging from 100 to 100,000 determined by a scanning electromicroscope; a tensile strength of 10 to 70 kg/mm.sup.2 ; an initial tensile modulus of 300 to 1,500 kg/mm.sup.2 ; an elongation of 5 to 20%; and a specific surface area of 1 to 50 m.sup.2 /g.

    摘要翻译： 提供了一种通过简单地挤出PAN / H 2 O熔体在凝胶状态而不纺丝而制备的高度取向的丙烯酸短纤维。 根据本发明的丙烯酸纤维的特征在于以下性质：通过X射线衍射观察到的取向度在80和97％之间; 长度分布范围为5〜500mm，厚度分布范围为5〜500μm，通过扫描型电子显微镜测定的厚度比范围为100〜100,000; 拉伸强度为10〜70kg / mm2; 初始拉伸模量为300〜1500kg / mm2; 伸长5〜20％; 比表面积为1〜50m2 / g。

    Heat- and chemical-resistant acrylic short fibers without spinning
    6.
    发明授权
    Heat- and chemical-resistant acrylic short fibers without spinning 失效
    耐热耐化学品丙烯酸短纤维，不纺纱

    公开(公告)号：US5401576A

    公开(公告)日：1995-03-28

    申请号：US64345

    申请日：1993-05-20

    申请人： Han S. Yoon ,  Tae W. Son ,  Byung C. Kim ,  Byung G. Min ,  Jae W. Cho ,  Chul J. Lee

    发明人： Han S. Yoon ,  Tae W. Son ,  Byung C. Kim ,  Byung G. Min ,  Jae W. Cho ,  Chul J. Lee

    IPC分类号： D01D5/11 ,  D01D5/42 ,  D01F6/18 ,  D01F6/38 ,  D01F6/40 ,  D02G3/02 ,  D02J1/22 ,  D21H13/18 ,  D02G3/00

    CPC分类号： D01F6/18 ,  D01D5/11 ,  D01D5/42 ,  D01D1/02 ,  Y10T428/29 ,  Y10T428/2904 ,  Y10T428/2913

    摘要： A new, pulp-like, acrylic short fiber having excellent heat- and chemical-resistance is provided. The fiber has a thickness distribution of 0.1 .mu.m to 50 .mu.m, a length distribution of 1 mm to 20 mm, and a thermal transition temperature (Tg) of above 200.degree. C. The fiber is produced by heating a mixture of polyacrylonitrile and water of about 5% to 100% by weight to temperatures above hydration-melting temperature under seal to an amorphous melt; cooling the resulting amorphous melt to temperatures between the melting and the solidifying temperatures of the melt to form a supercooled melt; extruding the resulting supercooled melt to give extrudates; heat-stabilizing the resulting extrudates at temperatures between 180.degree. C. and 300.degree. C. for 1 minute to 4 hours after drying and drawing; and cutting and beating the resulting heat-stabilized extrudates into an appropriate size.

    摘要翻译： 提供了具有优异的耐热和耐化学性的新的纸浆状丙烯酸类短纤维。 纤维的厚度分布为0.1μm〜50μm，长度分布为1mm〜20mm，热转变温度（Tg）为200℃以上。纤维通过加热聚丙烯腈和 约5％至100％重量的水至密封下的水合熔融温度至无定形熔体的温度; 将所得到的无定形熔体冷却至熔体的熔融温度和固化温度之间以形成过冷熔体; 挤出所得过冷熔体以得到挤出物; 在180℃至300℃的温度下，将所得挤出物在干燥和拉伸后热稳定1分钟至4小时; 并将所得热稳定的挤出物切割并打浆成适当的尺寸。

    Reacting materials
    8.
    发明授权
    Reacting materials 失效
    反应材料

    公开(公告)号：US4983517A

    公开(公告)日：1991-01-08

    申请号：US899177

    申请日：1986-08-22

    申请人： Byung C. Kim ,  Dewey D. Y. Ryu

    发明人： Byung C. Kim ,  Dewey D. Y. Ryu

    IPC分类号： B01J8/22 ,  C12M1/08

    CPC分类号： B01J8/222 ,  C12M25/20 ,  C12M27/24 ,  C12M29/18 ,  C12M41/24

    摘要： Methods and apparatus for reacting materials to provide a product. In a reactor (20) having an inner column (A) and an adjacent coaxial outer column (B), and having an upper zone (II) and an adjacent lower zone (I), both zones (I,II) are filled with a liquid (C). A gas (4) is fed into the liquid (C) at the lower end of the upper zone (II). The liquid (C) and a part of the gas (4) are circulated generally upward in one column (A or B) and generally downward in the other column (B or A) in the upper zone (II). Particles (15) of a solid substance are provided in a column (A or B) in the lower zone (I). The liquid (C) is circulated between the lower zone (I) and the upper zone (II) in such manner that the liquid (C) contacts and fluidizes the solid particles (15) while confining them to the lower zone (I), while the gas (4) contacts the liquid (C) and is confined to the upper zone (II).

    摘要翻译： 用于使材料反应以提供产品的方法和装置。 在具有内柱（A）和相邻同轴外柱（B）的具有上区（II）和相邻下区（I）的反应器（20）中，两个区（I，II）都填充有 液体（C）。 气体（4）在上部区域（II）的下端被供给到液体（C）中。 液体（C）和气体（4）的一部分在上部区域（II）中的一列（A或B）中大致向上循环并且在另一列（B或A）中大体向下循环。 在下部区域（I）的列（A或B）中设置固体物质（15）。 液体（C）在下部区域（I）和上部区域（II）之间循环，使得液体（C）在使其固定在下部区域（I）的同时使固体颗粒（15）接触并流化， 而气体（4）接触液体（C）并限制在上部区域（II）。