Method of producing fuel gas and process heat fron carbonaceous materials
    1.
    发明授权
    Method of producing fuel gas and process heat fron carbonaceous materials 失效
    生产燃料的方法和加工热碳素材料

    公开(公告)号:US4444568A

    公开(公告)日:1984-04-24

    申请号:US362266

    申请日:1982-03-26

    摘要: In a process of simultaneously producing fuel gas and process heat from carbonaceous materials wherein the carbonaceous materials are gasified in a first fluidized bed stage and the combustible constituents left after the gasification are subsequently burnt in a second fluidized bed stage the throughput rate and the flexibility are increased in that the gasification is carried out at a pressure of up to 5 bars and a temperature of 800.degree. to 1100.degree. C. by a treatment with oxygen-containing gases in the presence of steam in a circulating fluidized bed and 40 to 80% of the carbon contained in the starting material are thus reacted. Sulfur compounds are removed from the resulting gas in a fluidized state at a temperature in the range from 800.degree. to 1000.degree. C. and the gas is then cooled and subjected to dust collection. The gasification residue together with the by-products which have become available in the purification of the gas, such as laden desulfurizing agent, dust and aqueous condensate, are fed to another circulating fluidized bed and the remaining combustible constituents are burnt there with an oxygen excess of 5 to 40%.

    摘要翻译: 在同时生产燃料气体和来自含碳材料的工艺热的过程中,其中碳质材料在第一流化床阶段气化,并且在气化之后留下的可燃组分随后在第二流化床阶段中燃烧,生产率和柔性是 增加了在循环流化床中在蒸汽存在下用含氧气体处理,在高达5巴的压力和800至1100℃的温度下进行气化,并且40-80% 的原料中所含的碳因此反应。 在800〜1000℃的温度下,以流化状态从所得气体中除去硫化合物,然后将气体冷却并进行集尘。 将气化残余物与在净化气体中可获得的副产物(如负载脱硫剂,灰尘和含水冷凝物)一起进料到另一个循环流化床中,剩余的可燃成分在那里燃烧,过氧 为5〜40%。

    Process for making cement using low-grade fuels
    2.
    发明授权
    Process for making cement using low-grade fuels 失效
    使用低档燃料制造水泥的工艺

    公开(公告)号:US5336317A

    公开(公告)日:1994-08-09

    申请号:US29784

    申请日:1993-03-11

    CPC分类号: C04B7/43 C04B7/4446

    摘要: A process for producing cement, including preheating a mixture of ground raw materials (raw meal) in a preheating cyclone to form a preheated raw meal, calcining the preheated raw meal in a calciner to form a calcined raw meal, burning the calcined raw meal in a rotary kiln with the aid of a high-grade fuel to form a cement clinker, cooling the cement clinker in a rotary kiln and grinding the cooled cement clinker. The process is characterized by replacing 50 to 70% of the high-grade fuel with a low-grade fuel, gasifying the low-grade fuel in a fluidized bed to form a resulting fuel gas, supplying a first portion of the resulting fuel gas to a main burner of the rotary kiln, a second portion of the resulting fuel gas to the exhaust gas stream from the rotary kiln and a third portion of the resulting fuel gas to the calciner.

    摘要翻译: 一种用于生产水泥的方法,包括在预热旋风分离器中预热原料(生料)的混合物以形成预热的生料,在煅烧炉中煅烧预热的生料,形成煅烧生料, 借助于高级燃料形成水泥熟料的回转窑,在回转窑中冷却水泥熟料并研磨冷却的水泥熟料。 该方法的特征在于用低等级燃料代替50%至70%的高级燃料,在流化床中气化低级燃料以形成所产生的燃料气体,将所得燃料气体的第一部分供应到 回转窑的主燃烧器,所产生的燃料气体的第二部分与来自回转窑的废气流和所得燃料气体的第三部分转移到煅烧炉。

    Fluidized bed reactor
    3.
    发明授权
    Fluidized bed reactor 失效
    流化床反应器

    公开(公告)号:US5215042A

    公开(公告)日:1993-06-01

    申请号:US645379

    申请日:1991-01-18

    摘要: A reactor for combusting fine-grained solid fuels in a circulating fluidized bed contains a combustion chamber, which is provided with lines which open in the lower portion of that chamber and serve to feed primary air, secondary air and solid fuel. The fluidized bed combustion chamber is divided into compartments by at least one partition provided in the upper portion of the fluidized bed combustion chamber. Each compartment communicates through a passage with at least one solids separator, which is connected to means for recycling solids and communicates with the compartment through a passage.

    摘要翻译: 用于在循环流化床中燃烧细粒状固体燃料的反应器包含燃烧室,该燃烧室设置有在该室的下部开口并用于输送一次空气,二次空气和固体燃料的管线。 流化床燃烧室由设置在流化床燃烧室上部的至少一个隔板分成隔室。 每个隔室通过通道与至少一个固体分离器连通,固体分离器连接到用于再循环固体的装置,并通过通道与隔室连通。

    Method for improving solids distribution in a circulating fluidized bed
system
    5.
    发明授权
    Method for improving solids distribution in a circulating fluidized bed system 失效
    改善循环流化床系统中固体分布的方法

    公开(公告)号:US4776288A

    公开(公告)日:1988-10-11

    申请号:US080424

    申请日:1987-07-31

    摘要: Disclosed is a process for improving the solids distribution in a circulating fluidized bed system. In the invention, hot ash from the system and fresh carbonaceous fuel are mixed in a chamber which is fluidized so as to form a fluidization zone wherein the heavier material is concentrated and a second fluidization zone which consists predominantly of fines at least a portion of which is separated from the heavier material. This zone separation is facilitated in part by maintaining different gas-mass flow rates so as to form a plug of heavier material. At least a portion of the fine material is then transferred into the reactor while the coarse material is further processed.

    摘要翻译: 公开了一种改善循环流化床系统中固体分布的方法。 在本发明中,来自系统的热灰和新鲜碳质燃料在流化的室中混合,以便形成流化区,其中较重的材料被浓缩,而第二流化区主要由细粉组成,其中至少一部分 与较重的材料分离。 通过保持不同的气体质量流率来部分地促进该区域分离,从而形成较重材料的塞子。 然后将至少一部分细材料转移到反应器中,同时进一步处理粗材料。

    Process for the regulating or controlling the NOx content of exhaust gases given off during the operating of glass melting furnaces with several burners run alternately
    6.
    发明授权
    Process for the regulating or controlling the NOx content of exhaust gases given off during the operating of glass melting furnaces with several burners run alternately 失效
    用于调节或控制在具有多个燃烧器的玻璃熔炉操作期间排出的废气的NOx含量交替进行的过程

    公开(公告)号:US06237368B1

    公开(公告)日:2001-05-29

    申请号:US09202523

    申请日:1999-08-30

    IPC分类号: C03B516

    摘要: A method for regulating or controlling the content of NOx in the exhaust gases of a glass-melting furnace having several burners operated in alternation, wherein both the beginning and the end of a combustion break (FP+, FP−) are supplied to a binary signal generator (8) which passes a signal to a regulator (4) with a time delay and upon receipt of the time-regulator (4), and the amount of NH3 supplied to the denitrating plant is adjusted to a lower constant fixed value F1 via a control, and by means of a memory element (7) a higher constant fixed value F2 is calculated as amount of NH3 and supplied to the regulator (4), whereupon as soon as the regulator (4) has received the signal of the time-delayed end of a combustion break, the fixed value F1 is adjusted to the fixed value F2 via a control, and subsequently the regulation is directly continued.

    摘要翻译: 一种用于调节或控制具有多个燃烧器的玻璃熔炉的废气中的NOx的含量的方法,其中燃烧器的开始和结束(FP +,FP-)都被提供给二进制信号 发电机(8),其随时间延迟将信号传递给调节器(4),并且在接收到时间调节器(4)时,并且提供给脱硝设备的NH 3量被调节到较低的常数固定值F1,经由 控制,并且通过存储元件(7),较高的常数固定值F2被计算为NH3的量并提供给调节器(4),于是一旦调节器(4)接收到时间信号 燃烧断裂的延时结束,通过控制将固定值F1调整到固定值F2,随后直接继续调节。

    Process for the dry desulfurization of a combustion gas
    7.
    发明授权
    Process for the dry desulfurization of a combustion gas 失效
    燃烧气体干法脱硫的方法

    公开(公告)号:US5993765A

    公开(公告)日:1999-11-30

    申请号:US980716

    申请日:1997-12-01

    摘要: The process for dry desulfuration of a combustion gas includes providing an electrostatic precipitator (12) or an inertia force separator for dedusting; dedusting the combustion gas at temperatures of 100.degree. C. to 180.degree. C. in the electrostatic precipitator or at temperatures of 100.degree. C. to 700.degree. C. in the inertia force separator to form a partially dedusted combustion gas with a solids content of 5 to 40 g/Nm.sup.3 ; mixing the partially dedusted combustion gas with CaO and/or Ca(OH).sub.2 and optionally CaCO.sub.3 to form a gaseous mixture; providing a circulating fluidized bed device including a fluidized-bed reactor (8) and a downstream solids separator (7) with a return line (17) to the fluidized-bed reactor (8), the solids separator (7) being either another electrostatic precipitator or a bag filter; feeding the gaseous mixture and water into the fluidized-bed reactor (8); cooling the gaseous mixture in the fluidized-bed reactor (8) to a temperature of 50.degree. C. to 90.degree. C.; withdrawing a solids-containing gas from an upper portion of the fluidized-bed reactor (8); feeding the solids-containing gas into the solids separator (7) to form separated solids and a cleaned gas; recycling one portion of the separated solids into the fluidized-bed reactor (8) and mixing another portion of the separated solids with the combustion gas.

    摘要翻译: 燃烧气体的干式脱硫方法包括提供静电除尘器(12)或用于除尘的惯性力分离器; 在静电除尘器中在100℃至180℃的温度下或在惯性力分离器中在100℃至700℃的温度下对燃烧气体进行除尘,以形成部分除尘的燃烧气体,其固体含量为 5〜40g / Nm3; 将部分除尘的燃烧气体与CaO和/或Ca(OH)2和任选的CaCO 3混合以形成气体混合物; 提供包括流化床反应器(8)和具有到流化床反应器(8)的返回管线(17)的下游固体分离器(7)的循环流化床装置,固体分离器(7)是另一个静电 除尘器或袋式过滤器; 将气态混合物和水进料到流化床反应器(8)中; 将流化床反应器(8)中的气体混合物冷却至50℃至90℃的温度; 从流化床反应器(8)的上部排出含固体的气体; 将含固体的气体进料到固体分离器(7)中以形成分离的固体和清洁的气体; 将一部分分离的固体回收到流化床反应器(8)中,并将另一部分分离的固体与燃烧气体混合。

    Fluidized bed system
    9.
    发明授权
    Fluidized bed system 失效
    流化床系统

    公开(公告)号:US4817563A

    公开(公告)日:1989-04-04

    申请号:US160370

    申请日:1988-02-25

    摘要: Disclosed is a fluidized bed system which includes a fluidized bed reactor, a solids separator and a return line and serves to carry out exothermic processes in a circulating fluidized bed for large thermal capacities. Secondary gas is introduced into the reactor on a level which is at least 1 meter above the bottom of the reactor. The fluidized bed system is provided with one or more displacing bodies, which cover 40 to 75% of the bottom surface area of the fluidized bed reactor and have a maximum height that is equal to one-half of the height of the reactor to ensure a satisfactory transverse mixing of the oxygen-containing secondary gas and fuel in reactors having large dimensions.

    摘要翻译: 公开了一种流化床系统,其包括流化床反应器,固体分离器和返回管线,并且用于在用于大热容的循环流化床中进行放热过程。 二次气体在反应器底部至少1米的水平上被引入反应器。 流化床系统设置有一个或多个位移体,其覆盖流化床反应器的底表面积的40%至75%,并且具有等于反应器高度的一半的最大高度,以确保 在具有大尺寸的反应器中含氧二次气体和燃料的满意的横向混合。

    Process of burning cattle dung
    10.
    发明授权
    Process of burning cattle dung 失效
    燃烧牛粪的过程

    公开(公告)号:US4747356A

    公开(公告)日:1988-05-31

    申请号:US11559

    申请日:1987-02-04

    摘要: Disclosed is a process for burning cattle dung at a temperature of from 500.degree. to 780.degree. C., preferably from 650.degree. to 780.degree. C., in the presence of one or more aluminum-containing substances selected from the class consisting of bauxite, kaolin and aluminum compound-containing ash from furnaces for firing solid fuels. A major part of the alkalies contained in the cattle dung and a substantial part of the chlorine are retained in combined form in the resulting furnace ash.

    摘要翻译: 公开了一种在一种或多种选自以下的含铝物质存在下,在500至780℃,优选650℃至780℃的温度下燃烧牛粪的方法,该方法包括:铝土矿, 用于燃烧固体燃料的熔炉中的高岭土和含铝化合物的灰分。 牛粪中含有的碱的主要部分和大部分氯在所得的炉灰中以组合的形式保留。