PROCESS FOR PREPARING PELLETS FOR FIRING AN INDUSTRIAL FURNACE

    公开(公告)号:WO2020127473A1

    公开(公告)日:2020-06-25

    申请号:PCT/EP2019/085939

    申请日:2019-12-18

    Inventor: JENNISSEN, Lars

    Abstract: The invention relates to a method for producing pellets which are capable of providing free flowing powder suitable for firing an industrial furnace from municipal and/or other waste, the process comprising the following steps: (i) providing waste material comprising one or more thermoplastic material(s) of more than 40%, based on the total dry weight of the waste and one or more cellulosic material(s) of more than 30%, based on the total dry weight of the waste, wherein the waste has a particle size distribution with more than 80% larger than 5 mm, more than 95% smaller than 60 mm, (ii) subjecting the waste material through a pelletiser with holes between 4-16 mm and a length ratio of more than 2, and subjecting the pellets through a second pelletiser with holes between 4 and 10 mm, and a length ratio of more than 2 to provide pellets with a diameter between 4 and 10 mm, and a length of between 3 and 50 mm. The invention also relates to pellets obtained and having advantageous properties.

    PROCESS FOR PRODUCING CEMENT USING A SECONDARY FUEL
    2.
    发明申请
    PROCESS FOR PRODUCING CEMENT USING A SECONDARY FUEL 审中-公开
    使用二次燃料生产水泥的工艺

    公开(公告)号:WO2017001638A1

    公开(公告)日:2017-01-05

    申请号:PCT/EP2016/065444

    申请日:2016-06-30

    Abstract: The invention provides a process for producing cement, the process comprising providing heat to a cement manufacturing process using a secondary fuel, wherein the secondary fuel comprises cellulose and plastic and is in the form of pellets of a size between about 3-25 mm thickness, having a calorific value of about 16 GJ/ton or more, and wherein said secondary fuel is supplied at a place between the kiln inlet and the first cyclone, wherein after formation of the cement clinker, the cement clinker is cooled and milled to cement powder. Preferably, the secondary fuel is supplied to the riser pipe or to a pre-kiln combustion chamber. Generally, the secondary fuel is provided at a place which allows the pellets to burn before coming in contact with the cement materials in the kiln, while it also does not rise into the cyclone, thereby preventing blocking of the cyclones.

    Abstract translation: 本发明提供了一种生产水泥的方法,该方法包括使用二次燃料向水泥制造过程提供热量,其中二次燃料包括纤维素和塑料,并且是尺寸在约3-25mm厚度之间的颗粒形式, 具有约16GJ /吨以上的发热量,并且其中所述二次燃料在窑入口和第一旋风器之间的地方供应,其中在形成水泥熟料之后,将水泥熟料冷却并研磨成水泥粉 。 优选地,二次燃料被供应到提升管或预窑燃烧室。 通常,二次燃料设置在允许颗粒在与窑内的水泥材料接触之前燃烧的地方,同时它也不会进入旋风分离器,从而防止旋风分离器的堵塞。

    METHOD FOR FIRING AN INDUSTRIAL FURNACE USING COAL OR COKES WITH A SECONDARY FUEL
    3.
    发明申请
    METHOD FOR FIRING AN INDUSTRIAL FURNACE USING COAL OR COKES WITH A SECONDARY FUEL 审中-公开
    使用煤炭或焦炭与次级燃料燃烧工业炉的方法

    公开(公告)号:WO2015155193A1

    公开(公告)日:2015-10-15

    申请号:PCT/EP2015/057531

    申请日:2015-04-07

    Abstract: The invention relates to a process for firing an industrial furnace, in particular for electricity generation, wherein coal or cokes together with a secondary fuel comprising cellulose and plastic, in the form of pellets of a size larger than about 3 mm thickness, and having a caloric value of about 16 GJ/ton or more is ground to a powder wherein about 95 wt% or more has a particle size smaller than 2 mm and wherein the d50 of the particle size distribution is between about 5 and about 100 µm, wherein the powder is injected in the flame of the furnace. In this process the grinding is performed in a roller mill or ball mill, and the amount of pellets used together with the coals preferably is about 3 wt% or more, relative to the coal.

    Abstract translation: 本发明涉及一种用于焙烧工业炉,特别是用于发电的方法,其中煤或焦炭与包含纤维素和塑料的二次燃料一起形成尺寸大于约3mm厚度的颗粒,并具有 将大约16GJ /吨以上的热值研磨成粉末,其中约95重量%或更多的粒度小于2mm,其中粒径分布的d 50为约5至约100μm,其中 将粉末注入炉的火焰中。 在该方法中,研磨在辊磨机或球磨机中进行,并且与煤一起使用的粒料的量相对于煤优选为约3重量%以上。

    POWDERY ALTERNATIVE FUEL
    4.
    发明申请

    公开(公告)号:WO2022248626A1

    公开(公告)日:2022-12-01

    申请号:PCT/EP2022/064334

    申请日:2022-05-25

    Inventor: JENNISSEN, Lars

    Abstract: The invention relates to a method to produce powdery alternative fuel by milling pellets, which pellets are produced by: (i) providing waste material comprising one or more thermoplastic material(s) of more than 40%, based on the total dry weight of the waste and one or more cellulosic material(s) of more than 30%, based on the total dry weight of the waste, wherein the waste has a particle size distribution with more than 80 wt% larger than 5 mm and more than 95 wt% smaller than 60 mm, having a water content of about 8 wt% or less; (ii) subjecting the waste material through a pelletiser with holes between 4-8 mm, and a length ratio of more than 10, such that the output temperature is about 85 ºC or lower, (iii) subjecting the pellets through a second pelletiser with holes between 2 and 8 mm, and a length ratio of more than 14, such that the output temperature is about 110 ºC or higher; (iv) to provide pellets, (v) and the pellets are cooled to a temperature of about 30 ºC or lower. The powdery alternative fuel can be transported in bulk and through blowing lines.

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