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垃圾填埋气预处理的作用!

时间:2021-03-15
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垃圾填埋气预处理产生于垃圾填埋过程中,是垃圾中可以降解的有机物在降解过程中的一种副产品,它的主要成分是甲烷和二氧化碳,它们都是无色无味的气体;带气味的物质来源是一些微量成份,一般来说,垃圾填埋气中甲烷的含量在50-60%,二氧化碳为40-50%,微量成分占1%左右,这些气体如果直接排放到大气中,易燃易爆安全隐患很大,而且还会对环境成严重污染,温室效应严重,同时也是一种资源与能源的浪费。垃圾填埋气回收有着普遍的应用,例如发电或作为燃料能源,其中用作燃气发电是比较普遍的利用方式。
Landfill gas pretreatment is produced in the process of landfill, which is a by-product of degradable organic matter in the process of degradation. Its main components are methane and carbon dioxide, which are colorless and odorless gases. The source of odorous substances is some trace components. Generally speaking, the content of methane in landfill gas is 50-60%, carbon dioxide is 40-50%, and the content of trace components is 40-50% If these gases are directly discharged into the atmosphere, there will be a lot of flammable and explosive safety hazards, and it will also cause serious pollution to the environment, the greenhouse effect is serious, and it is also a waste of resources and energy. Landfill gas recovery has a wide range of applications, such as power generation or as fuel energy, among which gas power generation is the most common way.
垃圾填埋发电厂是以垃圾填埋气燃料产生动力来驱动燃气发电机组产生电能。垃圾填埋气经垃圾填埋场气体收集系管道收集至电站,从气井母管收集的气体含有大量的有害成分和水分,严重影响燃气发电机组的运行,一般在垃圾填埋气进行回收利用时,通常会进行预处理,确保提供符合燃气发电机组发电要求的洁净气体;垃圾填埋气预处理系统被安装在燃气发电机组进气管路前端,它是垃圾填埋场填埋气体发电工程非常重要的设备。
                                      沼气脱硫
Landfill power plant uses landfill gas fuel to generate power to drive gas-fired generating units to generate electricity. The landfill gas is collected to the power station through the gas collection pipeline of the landfill, and the gas collected from the gas well header contains a lot of harmful components and moisture, which seriously affects the operation of the gas-fired power generation unit. Generally, when the landfill gas is recycled, it is usually pretreated to ensure that the clean gas meeting the power generation requirements of the gas-fired power generation unit is provided The system is installed in the front of the gas generator air inlet pipeline, which is a very important equipment for landfill gas power generation project.
垃圾填埋气的预处理装置通过气体吸取装置对填埋气进行收集,送入杂质分离器将杂质去除,脱硫装置去除垃圾填埋气内的硫化氢。再经过初级过滤装置去除粉尘或细小颗粒,经过冷却脱水装置进行初步脱水,再以气液分离器去除水汽,而后经鼓风机负压抽出再经精密过滤器进一步去除杂质从而得到初步处理完毕的垃圾填埋气,具有良好的填埋净化预处理效果,有效去除了有毒有害杂质。
The pretreatment device of landfill gas collects landfill gas through gas absorption device, sends it to impurity separator to remove impurities, and desulfurization device removes hydrogen sulfide in landfill gas. After that, the dust or fine particles are removed by the primary filtration device, the initial dehydration is carried out by the cooling dehydration device, the water vapor is removed by the gas-liquid separator, and then the negative pressure is extracted by the blower, and then the impurities are further removed by the precision filter, so as to obtain the landfill gas that has been preliminarily treated, which has a good landfill purification pretreatment effect and effectively removes the toxic and harmful impurities.

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