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生物脱硫的新型工艺原理!

首页- 资讯资讯 > 企业资讯 > 2020-08-18

  生物脱硫过程分为两种,一种是整合的,另一种是分离的。综合生物脱硫是将一定量的空气引入含硫化氢的沼气中,混合后的气体通过生物滤池去除硫化氢。这样,在反应器内部安装了塑料填料,营养液的循环将填料保持在湿状态,并补充了脱硫所需的营养。集成的脱硫效率高,高达95%到99%,运行成本低,自动化程度高,易于操作且成本低。但是,一体化脱硫方法的填料容易堵塞,不仅影响处理效果,增加劳动强度,而且空气直接与沼气混合。一旦控制仪器发生故障,沼气就很容易达到爆炸限度,安全隐患很高。另外,操作控制精度过高(温度30-31℃),系统容易失控。如果生物脱硫产物是硫酸,则会形成大量的低浓度硫酸,难以处理。同样,不可能处理高于15,000 ppm硫化氢浓度的沼气。

  There are two kinds of biological desulfurization process, one is integrated, the other is separated. Comprehensive biological desulfurization is to introduce a certain amount of air into the biogas containing hydrogen sulfide, and the mixed gas is removed by biological filter. In this way, plastic packing is installed in the reactor, and the circulation of nutrient solution keeps the packing in a wet state and replenishes the nutrition needed for desulfurization. Integrated desulfurization efficiency is high, up to 95% to 99%, low operation cost, high degree of automation, easy operation and low cost. However, the filler of the integrated desulfurization method is easy to be blocked, which not only affects the treatment effect and increases the labor intensity, but also directly mixes the air with biogas. Once the control instrument fails, the biogas will easily reach the explosion limit, and the potential safety hazard is very high. In addition, the operation control accuracy is too high (temperature 30-31 ℃), the system is easy to lose control. If the biodesulfurization product is sulfuric acid, a large amount of low concentration sulfuric acid will be formed, which is difficult to treat. Similarly, it is not possible to treat biogas with concentrations of hydrogen sulfide above 15000 ppm.
              生物脱硫
  单独的生物脱硫工艺采用单独的生物脱硫方法。含硫化氢的沼气首先进入生物洗涤器,在此与混合液体中的碱反应,从沼气中去除硫化氢。来自生物洗涤塔的吸取液流到塔的底部并进入生物反应器。反应器底部有一个空气分配系统,该系统向微生物提供氧气,将反应器中的硫化物转化为元素硫,同时再生碱性液体,并在分离器中分离出元素硫 。单独的生物脱硫方案具有高脱硫效率(高达99%),年运行成本低,自动化程度高,易于操作以及无需与空气直接混合即可安全操作沼气的特点。它可以处理高浓度硫化氢的沼气。但是运行成本比集成生物脱硫略高。
  Separate biological desulfurization process adopts separate biological desulfurization method. The biogas containing hydrogen sulfide first enters the biological scrubber, where it reacts with alkali in the mixed liquid to remove hydrogen sulfide from the biogas. The absorption liquid from the biological scrubbing tower flows to the bottom of the tower and enters the bioreactor. There is an air distribution system at the bottom of the reactor, which provides oxygen to microorganisms, converts sulfide in the reactor into elemental sulfur, regenerates alkaline liquid and separates elemental sulfur from separator. The single biological desulfurization scheme has the characteristics of high desulfurization efficiency (up to 99%), low annual operation cost, high degree of automation, easy operation and safe operation of biogas without direct mixing with air. It can deal with methane with high concentration of hydrogen sulfide. However, the operation cost is slightly higher than that of integrated biological desulfurization.
  两种生物脱硫工艺均广泛用于沼气,垃圾填埋气,天然气,水煤气和其他工业用气生物脱硫工艺。集成的生物脱硫工艺具有较低的运营成本,并广泛用于低浓度硫化氢(低于10,000 ppm)沼气的发电和燃烧项目。单独的生物脱硫过程具有很强的抗硫化氢负荷能力,并且空气不会进入沼气。广泛用于高浓度硫化氢生物脱硫净化过程中。
  Both of them are widely used in biogas, landfill gas, natural gas, water gas and other industrial gas. The integrated biological desulfurization process has low operating costs and is widely used in power generation and combustion projects with low concentration of hydrogen sulfide (less than 10000 ppm). The single biological desulfurization process has a strong ability to resist hydrogen sulfide load, and the air will not enter the biogas. It is widely used in biological desulfurization and purification process of high concentration hydrogen sulfide.
  以上是关于生物脱硫新型工艺原理的详细先容,相信大家都已有所了解,如想要了解更多信息欢迎点击https://www.hneee.net官网。
  The above is a detailed introduction of the new process principle of biological desulfurization. I believe you have already understood it. If you want to know more information, please click https://www.hneee.net Official website.

上一条    生物脱硫分享大型沼气工程使用的安全措施!2020-08-18

下一条    沼气设备系统中生物脱硫系统的运行及控制?2020-08-18

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