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13 条记录 (耗时 0.029 秒)

    Method for reducing sulfur emissions in processing air-blown asphalt
    2.
    发明授权
    Method for reducing sulfur emissions in processing air-blown asphalt 失效
    减少加工吹风沥青中硫排放的方法

    公开(公告)号：US5611910A

    公开(公告)日：1997-03-18

    申请号：US599773

    申请日：1996-02-12

    申请人： Jorge A. Marzari ,  Michael R. Franzen ,  Jeffrey W. Smith

    发明人： Jorge A. Marzari ,  Michael R. Franzen ,  Jeffrey W. Smith

    IPC分类号： B01D53/50 ,  C10C3/02 ,  C10C3/04 ,  C10C1/20

    CPC分类号： C10C3/04 ,  B01D53/501 ,  B01D53/507 ,  C10C3/023

    摘要： In a method for reducing emissions from an asphalt blowing process, an emission reducing additive is added to the asphalt prior to blowing, or early in the blowing process. The emission reducing additive is added in an amount sufficient to reduce the SO.sub.x emissions from the blowing process by at least 25 percent by weight when compared with the same process without the emission reducing additive. The emission reducing additive includes at least two compounds selected from metal hydroxides, metal oxides, metal carbonates and metal bicarbonates, where the metal is selected from sodium, potassium, calcium, magnesium, zinc, copper and aluminum.

    摘要翻译： 在减少沥青吹制过程的排放的方法中，在吹制之前或在吹制过程的早期，将沥青添加到沥青中。 当与不含减排添加剂的相同方法相比时，减少排放添加剂的量足以将来自吹制过程的SO x排放量减少至少25重量％。 减排添加剂包括选自金属氢氧化物，金属氧化物，金属碳酸盐和金属碳酸氢盐中的至少两种化合物，其中金属选自钠，钾，钙，镁，锌，铜和铝。

    Method for reducing sulfur-oxide emissions from an asphalt air-blowing process
    5.
    发明授权
    Method for reducing sulfur-oxide emissions from an asphalt air-blowing process 失效
    降低沥青吹风过程中硫氧化物排放的方法

    公开(公告)号：US06383464B1

    公开(公告)日：2002-05-07

    申请号：US08724714

    申请日：1996-09-30

    申请人： Jorge A. Marzari ,  Michael R. Franzen ,  Jay H. Mirrow ,  David C. Trumbore

    发明人： Jorge A. Marzari ,  Michael R. Franzen ,  Jay H. Mirrow ,  David C. Trumbore

    IPC分类号： C01B700

    CPC分类号： B01D53/501 ,  B01D53/507 ,  C10C3/023 ,  C10C3/04

    摘要： A method for substantially reducing sulfur-oxide emissions from an asphalt air-blowing process involves adding an emission-reducing additive to the asphalt prior to air-blowing, or early in the air-blowing process, and filtering the flue gases produced in the process. The emission-reducing additive includes at least one metal hydroxide, metal oxide, metal carbonate, or metal bicarbonate, where the metal is sodium, potassium, calcium, magnesium, zinc, copper, or aluminum. The filter is preferably of the fiber-bed type, and removes at least a portion of the sulfur-containing compounds via condensation. The filtered stream of flue gases is subjected to an incineration process before being passed into the atmosphere.

    摘要翻译： 一种用于大幅减少沥青吹风过程中的硫氧化物排放的方法包括在空气吹制之前或早期在吹气过程中向沥青中加入减排添加剂，并且过滤在该过程中产生的烟道气 。 排放减少添加剂包括至少一种金属氢氧化物，金属氧化物，金属碳酸盐或金属碳酸氢盐，其中金属是钠，钾，钙，镁，锌，铜或铝。 过滤器优选为纤维床型，并通过冷凝除去至少一部分含硫化合物。 过滤的烟气流在进入大气中之前经过焚烧处理。

    Method for reducing hydrogen chloride emissions from air-blown asphalt
    7.
    发明授权
    Method for reducing hydrogen chloride emissions from air-blown asphalt 有权
    降低吹气沥青中氯化氢排放的方法

    公开(公告)号：US06325986B1

    公开(公告)日：2001-12-04

    申请号：US09667057

    申请日：2000-09-21

    申请人： Jorge A. Marzari ,  Katherine E. Poterek ,  Timothy T. Picman

    发明人： Jorge A. Marzari ,  Katherine E. Poterek ,  Timothy T. Picman

    IPC分类号： C01B700

    CPC分类号： C10C3/026 ,  C10C3/023 ,  C10C3/04 ,  Y02A50/2327

    摘要： In a method for reducing hydrogen chloride emissions from an asphalt air-blowing process, an asphalt is subjected to an air-blowing process where air is bubbled through hot asphalt to raise the softening point of the asphalt. The fumes from the air-blowing process are bubbled through a liquid seal in a knockout tank before going to an incinerator and finally being emitted to the atmosphere. The knockout tank normally operates to condense oil in the fume stream, and the liquid seal is composed of this oil, as well as some of the water evolved in the air-blowing process. When using ferric chloride or ferrous chloride as a catalyst in the air-blowing process, the fume stream contains significant levels of hydrogen chloride. In this invention, a chemical modifier is added to the process oil and water seal in the knockout tank prior to the start of the process in order to reduce the amount of hydrogen chloride in the emitted fume stream by at least 25% by weight compared to the same process without the addition of the chemical modifier.

    摘要翻译： 在沥青吹风方法中减少氯化氢排放的方法中，对沥青进行吹风过程，其中空气通过热沥青鼓泡以提高沥青的软化点。 来自吹气过程的烟雾在进入焚化炉之前被鼓泡通过敲打罐中的液体密封，最后被排放到大气中。 脱模罐通常用于在烟气流中冷凝油，并且液体密封由该油组成，以及在吹风过程中产生的一些水。 当在吹风过程中使用氯化铁或氯化亚铁作为催化剂时，烟气流含有显着水平的氯化氢。 在本发明中，在开始工艺之前，将化学改性剂加入到脱模罐中的工艺油和水封中，以便将排放的烟气流中的氯化氢的量减少至少25重量％，相比于 相同的工艺没有添加化学改性剂。