In practical industrial applications, adsorption separation is generally divided into two categories: variable pressure adsorption and variable temperature adsorption. From the adsorption isotherm of the adsorbent, it can be seen that the adsorbent has a large adsorption capacity for impurities at high pressure and a small adsorption capacity at low pressure. Also from the adsorption isobars of adsorbent, it can be seen that at the same pressure the adsorbent has a large adsorption capacity at low temperature and a small adsorption capacity at high temperature. Adsorption separation using the former property of the adsorbent is known as pressure shift adsorption (PSA) and adsorption separation using the latter property of the adsorbent is known as temperature shift adsorption (TSA).

Pressure Swing Adsorption (PSA for short) is a new gas adsorption separation technology, which has the following main advantages: (1) high product purity; (2) generally work at room temperature and low pressure, bed regeneration without heating, energy saving and economy; (3) equipment is simple, easy to operate and maintain; (4) continuous cyclic operation, which can be fully automated. Therefore, when this new technology was introduced, it has been the attention of national industries, competing development and research, rapid development and increasing maturity.

With the increasing industrialisation, the pollution of VOCs has a tendency to expand further. And with the recent environmental protection policies become more and more stringent, the emission control of organic pollution waste gas becomes more important. Here we take a look at what technologies are available at home and abroad? What are the advantages and disadvantages of each?

The absorption capacity of ionic liquid for sulfur dioxide is very strong, the amount of solvent recycling is only 1/15~1/5 of MDEA solvent, and the consumption of public works is much lower than that of MDEA solvent absorption and regeneration.

在现货市场中，新加坡基准180CST燃料油交易价从上周五的每吨281.30美元涨至289.80美元；而380CST燃料油价格每吨上涨3.40美元为284.75美元。

2008年7月25日，全国冶炼行业首家离子液尾气吸收系统在巴彦淖尔紫金有色金属有限公司运行投产，标志着该公司的10万吨锌冶炼厂尾气排放达到了国内领先水平。

获悉，由成都华西化工科技股份有限公司研发近10年的烟气脱硫新技术“离子液循环法”，在攀钢新钢钒6号烧结机试运行成功。这标志着，冶炼、煤电行业生产中烟气无污染脱硫的“世界性难题”得到了破解。

成都华西化工科技股份有限公司是成都华西化工研究所于1999年5月改制设立的民营股份制高科技企业，注册资本2400万元人民币。主要从事工业气体分离与净化、环保、特种阀门、特种离心设备的技术开发与生产。服务于化工、石油、天然气、冶金、电力、环保、新能源、军工等行业。