The adsorption capacity of adsorbents for ethane (C2) and hydrocarbons above C2 varies with pressure after the feed gas enters the adsorption tower of PSA unit. Under pressure, the hydrocarbon impurities above C2 in the feed gas are adsorbed, and the unsorted gas (purified gas) acts from the outlet of the adsorption tower. The adsorbed impurities are desorbed and desorbed from the adsorbent and regenerated at the same time. At least four adsorption beds are circulate to achieve continuous output of purified gas

Technology of carbon natural gas purification by pressure swing adsorption plant

Feed gas:natural gas,Control mode and characteristics

Control mode: The SPA device is controlled by the controller and meter. The controller can select DCS, FCS and PLC control system according to the scale and control requirements of the SPA device.

Characteristics:It not only realizes the conventional control of the system, but also realizes the expert control and adaptive optimization control of arbitrary combination and switching of multiple towers, which not only improves the operational flexibility of the device, but also ensures the long-term, stable and safe operation of the PSA device.

Service:Provide patents and proprietary technology, provide the design for complete equipment

Technical introduction

Carbon monoxide was purified from the mixture of carbon monoxide, hydrogen, nitrogen, methane and carbon dioxide by pressure swing adsorption. The raw gas enters a PSA unit and adsorbs carbon dioxide, water and trace sulfur. The purified gas after decarbonization enters the two-stage PSA unit to remove impurities such as hydrogen, nitrogen and methane, and the adsorbed carbon monoxide is desorbed by vacuum under reduced pressure as a product output.

technical characteristics

1.Wide range of raw gas application.
2.Low carbon monoxide cost.
3.High purity of carbon monoxide.
4.PSA process is short, low operating pressure: 0.1~6.0MPaG, the product degree can reach 99.5%.

Technical features:

1.Good adaptability of raw gas
High purity carbon monoxide can be separated from feedgas with high nitrogen or methane content by using high efficiency carbon monoxide adsorbent.

2.Low carbon monoxide cost
The equipment has advanced technology, high yield, less raw material consumption, small load of supporting equipment and low production cost.

3.Carbon monoxide quality is high
The product has high carbon monoxide purity and small impurity content, which is beneficial to downstream production and can bring economic benefits.

4.The user’s crude oil device can be modified
Under the premise of no increase in operating costs, the carbon monoxide output and quality of the original pressure swing adsorption equipment in China can be greatly improved.