1、概述General Introduction
变压吸附(Pressure Swing Adsorption.简称PSA)技术，自20世纪60年代末大规模应用于工业气体分离领域以来，已得到蓬勃的发展。在中国无论从单套规模还是从数量上，PSA技术的应用领域已处于世界最先进之列。
PSA technology has developed vigorously since its large-scale application in the field of industrial gas separation in the late 1960s. In China, whether from a single capacity or quantity, PSA technology Application are among the most advanced in the world.
PSA技术具有产品纯度弹性大、设备简单、操作方便、能耗低、自动化程度高等优点，广泛应用于CO、CO2、H2回收和提纯以及空分制氧、焦炉气净化等工业气体分离领域。我公司通过多年对变压吸附的研究与试验，开发了各种多组分富氢气体中的氢气提纯成套技术，并为客户提供装置的升级改造服务等。
PSA technology has the advantages of high flexibility in product purity, simple equipment, convenient operation, low energy consumption, and high automation. It is widely used in industrial gas separation fields such as recovery and purification of CO, CO2, H2, air separation to get oxygen production and coke oven gas purification. Through years of research and experiments on PSA, our company has developed a complete system of hydrogen purification technology for various multi-component hydrogen-rich gases, and provides customers with equipment upgrade services.
2、工艺原理Basic Method
变压吸附技术已在世界范围内成为氢气的主要分离方法，并成功用于二氧化碳、一氧化碳、氮气、氧气、甲烷等气体的分离提纯和其它工业气体的净化。
PSA is the main technology of hydrogen separation around the world, and sucessfully used in the separate and purification of CO2, CO, N2, O2,CH4 and other industrial gas.
气体混合物的吸附分离是在固定吸附床中实现的。把一种或多种吸附剂充填在吸附床中，当含氢的混合气体在一定压力下进入吸附床后，由于气体组份存在吸附特性差异，不同的组份在吸附床的不同位置形成吸附富集区，最强吸附组份（CO2）富集于吸附床的入口端，最弱吸附组份（H2）富集于吸附床出口端，其余组份的富集区以吸附性强弱差异分布于吸附床中部，从而实现氢气的分离提纯。采用PSA变压吸附的方法可以制取纯度为99%～99.9999%的氢气。
Adsoption and separation of mixed gas is achieved in a fixed adsoption bed. One or more kinds of adsorbents are loaded in the sdsorption bed and the mixed gas will go through the adsorption bed under a certain pressure.According to the difference in adsorption between different gas, the different gas will form enrichment area in the different place of the adsorption bed.The CO2, the strongest adsorbemt gas, is concentrated at the inlet of the adsorption bed and the H2, the weakest adsorbent gas, is concentrated at the outlet of the adsorption bed. Other gas will distribute in the middle of the adsorption bed depends on the difference in adsorption. This is the whole process to separate and purify hydrogen, which can make the purity of the H2 from 99% to 99.9999%.
3、工艺流程 Process
氢气提纯采用多塔变压吸附技术，原料气由吸附塔入口端进入，在出口端获得纯氢。变压吸附基本工作步骤分为吸附和再生两步骤，吸附剂的再生又是通过以下三个基本步骤来完成的：降压、解析、升压，吸附塔在执行程序的安排上相互错开，构成一个闭路循环，以保证原料连续输入和产品不断输出。
Multi-column PSA technology is used for hydrogen purification. The feed gas enters from the inlet of the adsorption tower, and pure hydrogen is obtained at the outlet. The basic working steps of PSA are divided into two steps: adsorption and regeneration and the regeneration are divided into three steps: lower pressure, analysis, higher pressure. The adsorption towers are staggered in the arrangement of execution procedures to be a cycle to ensure continuous input of raw materials and continuous output of products.
4、主要性能指标 Main Performance Index
1）装置规模：氢气产量1～80000Nm3/h
Plant capacity: H2 1～80000Nm3/h
2）氢气纯度:99%～99.999%
Purity of H2: 99%～99.999%
3）氢气压力:0.4～3.0MPa
Pressure of H2: 0.4～3.0MPa
4）氢气温度：常温
Temperature of H2: room temperature
5、工艺特点及优势 Products Advantage
1）设备布置合理，占地面积小。
Reasonable layout with small footprint;
2）运行稳定，可全年连续运行不停车。
Stable operation, continuous operation throughout the year without stopping;
3）自动化水平高，控制点完善合理，可实现装置现场无人管理。
High automation and reasonable control design to realize unmanagement on site;
4）在50%～110%流量下，负荷调节自如、安全稳定运行。
Under the flow of 50% to 110%, the load can ba adjust freely and safely.
5）正常情况下，可根据需求随开随停。
It can be started and stopped as required under normal circumstance;
6）如一个吸附塔出现故障，可切换出来，保证其他吸附塔正常运行，不影响产品气纯度。
If one adsorption tower fails, it can be switched out to ensure the other adsorption tower run normally without affecting product gas purity.
四川蜀泰化工科技有限公司
声明：本站部分 章内容系出于传递信息之目的源自于第三方 站转载，行业企业、终端用户投稿。若对稿件内容有任何疑问或质疑，请立即与本 站联系，本 站将迅速给予回应并第一时间做出处理（联系邮箱：jinwei@zod.com.cn）。