Entrained flow coal gasification process
    6.
    发明授权
    Entrained flow coal gasification process 失效
    夹带气煤气化过程

    公开(公告)号:US4531949A

    公开(公告)日:1985-07-30

    申请号:US517034

    申请日:1983-07-25

    IPC分类号: C10J3/46

    摘要: A process for gasifying coal comprising supplying to an upper portion of an entrained flow gasifier a coal powder having a particle size of 100 .mu.m or less whereby gasification is conducted at 900.degree. C. or higher in the absence of oxygen, supplying a coal powder including coarser particles and oxygen in an amount from that necessary for complete combustion of coal to a half of said amount to a lower portion of the gasifier whereby gasification is conducted at a melting point of coal ash or higher, and leading the gases produced at the lower portion of the gasifier directly to the upper portion of the gasifier, does not require recycle of char to the gasifier and gives a high gasification efficiency by passing coal powder through the gasifier only one time.

    摘要翻译: 一种气化煤的方法,其特征在于,向粒状流动气化炉的上部供给粒径为100μm以下的煤粉,在不存在氧气的情况下,在900℃以上进行气化,供给煤粉 包括较粗的颗粒和氧气,其量从煤完全燃烧所需的量到所述量的一半量至气化器的下部,由此在煤灰或更高的熔点进行气化,并导致在 气化器的下部直接连接到气化器的上部,不需要将炭再循环到气化器,并且仅通过煤粉通过气化炉一次而使其具有高的气化效率。

    Apparatus for elimination of nitrogen oxides from combustion waste gases
    7.
    发明授权
    Apparatus for elimination of nitrogen oxides from combustion waste gases 失效
    用于从燃烧废气中去除氮氧化物的装置

    公开(公告)号:US4003711A

    公开(公告)日:1977-01-18

    申请号:US514130

    申请日:1974-10-11

    摘要: Nitrogen oxides (NOx) are removed from combustion waste gases by injecting gas (NH.sub.3) into the combustion waste gases in the presence of a metallic catalyst to deoxidize the nitrogen oxides to nitrogen and water, within a reaction tower having the catalysts moving through the reaction tower, so that thereafter the dust may be separated from the catalysts and the catalysts may be regenerated continuously, so that the regenerated catalysts may be returned to the reaction tower. The catalyst moves in a substantially closed path, and preferable downwardly through the reaction tower, with the ammonia gas and combustion waste gases moving in cross current through the reaction tower, with mixing being enhanced by a plurality of angled baffle plates. Regeneration is accomplished by washing the catalysts, particularly ferrous catalysts with water to remove ferric sulfates, thereafter providing ferrous sulfates on the surface of the ferrous catalysts, and thereafter heating the catalysts with combustion gases separate from the ammonia gases, to dry the catalysts prior to their moving into the portion of the reaction tower having therein the mixed ammonia gas and combustion waste gases.

    摘要翻译: 通过在催化剂移动通过反应的反应塔内,在金属催化剂的存在下将气体(NH 3)注入到燃烧废气中以将氮氧化物氧化成氮和水,从而从燃烧废气中除去氮氧化物(NOx) 塔,从而可以将灰尘与催化剂分离,并且可以连续再生催化剂,使得再生催化剂可以返回到反应塔。 催化剂在基本上封闭的路径中移动,并且优选向下通过反应塔,氨气和燃烧废气在交叉电流中移动通过反应塔,混合通过多个成角度的挡板增强。 通过用水洗涤催化剂,特别是含铁催化剂以除去硫酸亚铁,然后在亚铁催化剂的表面上提供硫酸亚铁,然后用与氨气分离的燃烧气体加热催化剂,将催化剂干燥,然后在 它们进入其中具有混合氨气的反应塔部分和燃烧废气。

    Adsorption method
    8.
    发明授权
    Adsorption method 失效
    吸附法

    公开(公告)号:US3980454A

    公开(公告)日:1976-09-14

    申请号:US545089

    申请日:1975-01-29

    IPC分类号: B01D53/04 C01B17/775

    摘要: A contaminant, such as sulfur dioxide, is removed from a fluid, such as hot exhaust gas, by passing it through beds of material for removing the contaminants, such as activated carbon for adsorbing the sulfur dioxide as sulfur trioxide; periodically, the bed is regenerated by discontinuing the passage of process fluid therethrough and passing through the bed a regenerating fluid, such as water, with quantities of the regenerating fluid being successively passed through the bed with corresponding decreasing amounts of contaminants, such as sulfuric acid within the water, in the respective quantities of regenerative fluid. At least one further bed of material is regenerated with substantially the same regenerative fluid in substantially the same succession of concentrations, but out of phase so that a quantity of regenerative fluid of one contaminant concentration is passed completely through only one bed of material prior to its passing through another bed of material. Preferably, after passing through one bed of material, the regenerative fluid is of the next highest concentration and passes through another bed of material in the sequence of the next highest concentration.

    摘要翻译: 通过使其通过用于除去污染物的材料床(例如用于以二氧化硫吸附二氧化硫的活性炭)将诸如二氧化硫的污染物从诸如热废气的流体中除去; 周期性地,通过停止工艺流体的通过并通过床将再生流体例如水再生,使再生流体的量连续地通过床,同时减少量的污染物例如硫酸 在水中,各自的再生流体的量。 基本上相同的再生流体基本上以相同的一系列浓度再生至少一个另外的材料床,但是异相再生,使得一个污染物浓度的再生流体的量在其之前仅通过一个材料床 穿过另一张床。 优选地,在通过一个材料床之后,再生流体具有下一个最高浓度,并且以下一个最高浓度的顺序通过另一个材料床。

    Furnace system
    10.
    发明授权
    Furnace system 失效
    炉系统

    公开(公告)号:US4653998A

    公开(公告)日:1987-03-31

    申请号:US694744

    申请日:1985-01-25

    IPC分类号: F23N5/00 F23N5/08 G01J1/42

    摘要: A furnace system connected to a burner including a furnace for burning a fuel and air ejected from the burner into the furnace to produce a flame therein, and a combustion condition determining device for determining the conditions of combustion of the fuel in a zone of the flame extending along different strata thereof by collecting light in the flame at one point in the flame by moving such point. Signals outputted by the combustion condition determining device are utilized for monitoring or controlling the flame and controlling exhaust emission control devices for controlling exhaust emissions produced by the combustion of the fuel. Control of the conditions of combustion of the flame can be effected quickly with a high degree of precision by monitoring the flame.

    摘要翻译: 一种连接到燃烧器的炉系统,包括用于燃烧燃料的炉和从燃烧器喷射到炉中以在其中产生火焰的燃烧空气;以及燃烧条件确定装置,用于确定燃料在火焰区域中的燃烧条件 通过移动这些点,在火焰的一个点处在火焰中收集光,沿不同的层延伸。 由燃烧条件确定装置输出的信号用于监视或控制火焰和控制废气排放控制装置,以控制由燃料燃烧产生的废气排放。 通过监视火焰可以高精度地快速实现对火焰燃烧条件的控制。