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    Desulfurization of exhaust gases using activated carbon catalyst
    2.
    发明授权
    Desulfurization of exhaust gases using activated carbon catalyst 有权
    使用活性炭催化剂对废气进行脱硫

    公开(公告)号：US06616905B1

    公开(公告)日：2003-09-09

    申请号：US09647680

    申请日：2000-10-03

    申请人： Kazushige Kawamura ,  Yoichi Umehara ,  Dai Takeda ,  Osamu Togari ,  Naonori Sonehara ,  Hiroaki Nishijima ,  Sachio Asaoka

    发明人： Kazushige Kawamura ,  Yoichi Umehara ,  Dai Takeda ,  Osamu Togari ,  Naonori Sonehara ,  Hiroaki Nishijima ,  Sachio Asaoka

    IPC分类号： B01D5350

    CPC分类号： B01J31/06 ,  B01D53/8609 ,  B01J21/18 ,  B01J37/0036 ,  B01J37/04 ,  Y10S502/514

    摘要： Active carbon catalyst for recovering and removing sulfur oxides contained in flue gas by turning them into sulfuric acid by a catalytic desulfurization reaction. Powdery active carbon and fluororesin are kneaded by shearing force before being molded to a desired profile so that the inter-particulate gaps of powdery active carbon particles are made water-repellent. Flue gas preferably flows downwardly through a tower filled with such an active carbon catalyst, which is made to show a honeycomb structure having surfaces running only in a direction parallel to the flow. The activity of the catalyst maintains an enhanced level if dilute sulfuric acid or water is introduced into the active carbon from the top of the tower to cleanse the surface of the active carbon catalyst so that the catalyst layer is prevented from being clogged and contaminated by ashes and soot contained in flue gas.

    摘要翻译： 活性炭催化剂，用于通过催化脱硫反应将其转化成硫酸来回收和除去烟道气中所含的硫氧化物。 通过剪切力将粉状活性炭和氟树脂在模塑成所需轮廓之前被捏合，使得粉末状活性炭颗粒的颗粒间隙成为防水的。 烟道气体优选地向下流过填充有这样的活性炭催化剂的塔，其被制成显示具有仅在与流动平行的方向上延伸的表面的蜂窝结构。 如果将稀硫酸或水从塔顶引入活性炭，则催化剂的活性维持在较高的水平，以清洁活性炭催化剂的表面，从而防止催化剂层被灰烬堵塞和污染 烟气中含有烟灰。

    Method for hydrogenation of coal tar pitch
    3.
    发明授权
    Method for hydrogenation of coal tar pitch 失效
    煤焦油沥青加氢方法

    公开(公告)号：US4909923A

    公开(公告)日：1990-03-20

    申请号：US4168

    申请日：1987-01-15

    申请人： Hiroshi Okazaki ,  Tadashi Komoto ,  Munekazu Nakamura ,  Osamu Togari ,  Noriyuki Yoneda ,  Haruhiko Yoshida ,  Hideki Hashimoto

    发明人： Hiroshi Okazaki ,  Tadashi Komoto ,  Munekazu Nakamura ,  Osamu Togari ,  Noriyuki Yoneda ,  Haruhiko Yoshida ,  Hideki Hashimoto

    IPC分类号： B01J35/10 ,  C10C1/20 ,  C10G1/08 ,  C10C3/02

    CPC分类号： C10G1/086 ,  B01J23/881 ,  B01J23/882 ,  B01J27/19 ,  B01J35/0026 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1061 ,  C10C1/205

    摘要： A method for the hydrogenation of coal tar pitch which comprises subjecting said coal tar pitch containing toluene insolubles to slight hydrogenation in the presence of a hydrogenation catalyst having carried on a refractory inorganic oxide carrier at least one member selected from the class consisting of elemental metals, belonging to Groups VI B and VIII in the Periodic Table and oxides and sulfides thereof, under the conditions of 280.degree. to 400.degree. C. of reaction temperature, 20 to 200 kg/cm.sup.2. G of hydrogen pressure, 0.1 to 10 hr.sup.-1 of LHSV, and 500 to 2,000 Nl/liter of hydrogen to liquid ratio, and a catalyst therefor. The "slight" hydrogenation is hydrogenation to a degree such that the difference of hydrogen to carbon atomic ratio between the untreated coal tar pitch and the hydrogenated coal tar pitch falls in the range of 0.03 to 0.5. The coal tar pitch can be coal tar pitch itself, coal tar pitch pretreated for the removal of organic sodium compounds, or pretreated for the removal of quinoline insolubles and, preferably, the coal tar pitch has a density in the range of 1.13 to 1.17 g/cm.sup.2 at 40 degrees C.

    摘要翻译： 一种用于加氢煤焦油沥青的方法，其包括在载有无机氧化物载体的氢化催化剂存在下，将含有甲苯不溶物的所述煤焦油沥青进行轻微氢化，所述氢化催化剂至少包含一种选自元素金属， 属于周期表第VIB和VIII族，其氧化物和硫化物在280-400℃的条件下反应温度为20-200kg / cm2。 氢气压力，0.1〜10小时-1的LHSV和500〜2000Nl /升的氢液比，以及催化剂。 “轻微”氢化氢化至一定程度，使得未处理煤焦油沥青与氢化煤焦油沥青之间的氢与碳原子比的差值落在0.03至0.5的范围内。 煤焦油沥青本身可以是煤焦油沥青，预处理用于除去有机钠化合物的煤焦油沥青，或预处理以除去喹啉不溶物，优选煤焦油沥青的密度范围为1.13-1.17g / cm2，40℃

    Process for the production of alumina suitable for use as a catalyst carrier
    4.
    发明授权
    Process for the production of alumina suitable for use as a catalyst carrier 失效
    用于生产适合用作催化剂载体的氧化铝的方法

    公开(公告)号：US4248852A

    公开(公告)日：1981-02-03

    申请号：US66869

    申请日：1979-08-15

    申请人： Motoyoshi Wakabayashi ,  Takeo Ono ,  Osamu Togari ,  Munekazu Nakamura

    发明人： Motoyoshi Wakabayashi ,  Takeo Ono ,  Osamu Togari ,  Munekazu Nakamura

    IPC分类号： B01J21/04 ,  B01J35/10 ,  C01F7/02 ,  C01F7/34

    CPC分类号： B01J21/04 ,  C01F7/02 ,  C01P2004/10 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14

    摘要： Improved .gamma.-alumina suitable for use as a catalyst carrier having high mechanical strength, a large specific surface area, and a substantially uniform pore size distribution in a relatively small portion of the pore size range below 500 A. Said alumina is produced by first establishing a seed aluminum hydroxide hydrogel having a pH of between 6 and 10 and then repetitively and sequentially adding an aluminum compound to adjust the pH to less than 5 or more than 11 to dissolve crystallites of aluminum hydroxide followed by addition of a neutralizing agent to return the hydrogel to the pH range from about 6 to 10 to cause pseudo-boehmite crystallites to grow. After a sufficient number of repetitions of said sequential addition, sparse aggregates of crystallites of the desired structure are formed. These are dried and calcined to produce the said alumina.

    摘要翻译： 改进的γ-氧化铝适合用作具有高机械强度，大的比表面积，以及孔径尺寸范围在500A以下的较小部分中的基本均匀的孔径分布的催化剂载体。所述氧化铝是通过首先建立 pH为6〜10的酸式氢氧化铝水凝胶，然后重复依次加入铝化合物以将pH调节至小于5或大于11，以溶解氢氧化铝的微晶，然后加入中和剂以使 水凝胶至约6至10的pH范围，以使假勃姆石微晶生长。 在所述顺序添加的足够数量的重复之后，形成所需结构的微晶聚集体。 将它们干燥并煅烧以产生所述氧化铝。