pk10计划

您好,欢迎光临山东恒能环保能源设备有限公司官网!为您提供完善的沼气生物脱硫、沼气提纯设备以及服务!欢迎来电!

pk10计划 - 新闻资讯 >

沼气提纯用到的变压吸附法有什么优缺点?

时间:2019-08-28
阅读量:
由于沼气中含有大量的硫化物和水蒸气,直接燃烧利用的话,对燃烧设备可能会造成极大的损害,为了避免这种情况,我们一般都会进行沼气提纯,而变压吸附法就是比较常用的一种方法。下面小编就给大家介绍一下沼气提纯用到的变压吸附法的优缺点!
Because biogas contains a lot of sulfides and water vapor, direct combustion may cause great damage to combustion equipment. In order to avoid this situation, we usually purify biogas, and pressure swing adsorption is a commonly used method. Next, we will introduce the advantages and disadvantages of pressure swing adsorption used in biogas purification.
变压吸附提纯法是利用吸附剂(如分子筛等)对二氧化碳的选择性吸附特点, 即在吸附剂上二氧化碳相对其他气态组分有较高的分离系数, 来达到对沼气中二氧化碳进行脱除的目的。在吸附过程中,原料气在加压条件下其中的二氧化碳被吸附在吸附塔内,甲烷等其他弱吸附性气体作为净化气排出,当吸附饱和后将吸附柱减压甚至抽成真空使被吸附的二氧化碳释放出来。为了保证对气体的连续处理要求,变压吸附法至少需要两个吸附塔, 也可是三塔、四塔或更多。
Pressure swing adsorption (PSA) is a method to remove carbon dioxide from biogas by utilizing the selective adsorption characteristics of adsorbents (such as molecular sieves), i.e. the separation coefficient of carbon dioxide on adsorbents is higher than that of other gaseous components. During the adsorption process, carbon dioxide in the feed gas is adsorbed in the adsorption tower under pressurized conditions, and other weakly adsorbed gases such as methane are discharged as purifying gas. When the adsorption is saturated, the adsorption column is decompressed or even pumped into vacuum to release the adsorbed carbon dioxide. In order to ensure the continuous treatment of gases, PSA requires at least two adsorption towers, or three, four or more towers.
沼气提纯
工艺优点:目前新开发的主副塔结构式变压吸附脱碳装置,改变了传统变压吸附甲烷回收率低、净化度低等问题。整个装置操作简便,维修量少,同时克服了化学脱碳的起泡、易腐蚀、耗蒸汽等缺点。
Advantages of the process: The newly developed PSA decarbonization device with main and auxiliary towers has changed the problems of low recovery and low purity of traditional PSA methane. The whole device is easy to operate and has less maintenance. At the same time, it overcomes the shortcomings of chemical decarbonization, such as foaming, corrosion and steam consumption.
工艺缺点:在实际工程运行中,变压吸附中的分子筛易中毒、失去活性,分子筛在变压吸附中所占成本比例较高。
Technological shortcomings: In practical engineering operation, molecular sieves in pressure swing adsorption are easily poisoned and deactivated, and the cost proportion of molecular sieves in pressure swing adsorption is relatively high.
今天就暂且和大家聊到这里,希望这篇由沼气提纯的小编整理的知识可以帮助到您,如果您对此还有疑问,详情请咨询我们的官方。http://www.jiamei-qd.com
Today I'm going to talk to you for a moment. I hope this knowledge of biogas purification can help you. If you have any questions about it, please consult our official for details. Http://www.jiamei-qd.com
pk10计划 pk10计划 pk10计划 pk10计划 pk10计划 pk10计划 pk10计划 pk10计划 pk10计划 pk10计划