FAQ

Liquid air separation plant molecular sieve adsorbers are used to remove impurities such as moisture, carbon dioxide and acetylene from the air by adsorption. The porous solids used in the adsorption process are called adsorbents. The requirements of the adsorbent are mainly the following. 1) The adsorbent must be a porous substance. Adsorption can only be carried out on the surface of the solid, the more voids, the larger the surface area, the stronger the adsorption capacity. 2) The adsorbe...

Due to the large demand for cryogenic liquid of the market, and in order to ensure the normal operation of the production line when the air separation plant stops abnormally or the air supply is interrupted due to failure, the air separation users with cryogenic liquid production capacity will maximize the production and storage of liquid products while ensuring that the gas production is not affected, and try their best to improve the production of liquid products.

The environmental conditions considered by the air separation plant include: altitude, atmospheric pressure, ambient temperature, air humidity, the content of impurities such as carbon monoxide in the air, etc. These conditions vary with different regions and environments. Different environmental conditions have different effects on the performance of the same air separation plant. 1. Influence of atmospheric pressure on air separation plant: Atmospheric pressure is the pressure exerted on objects in the atmosphere by the gravity of the atmosphere itself. In general, the atmospheric pressure is about 0.1MPa. When the atmospheric pressure decreases, the compression ratio of the air compressor will increase, which will increase the energy consumption of the air separation plant. 2. Influence of ambient temperature and humidity on air separation plant: The increase of ambient temperature will reduce the air compressor's exhaust volume, increase the exhaust temperature, increas

How to purify biogas

Uneven bubbling of sieve tray tower

Solenoid valve controls the position of valve core through an electromagnetic coil to achieve the purpose of changing the flow direction of fluid, or to cut off or connect air source. The electromagnetic components of the commonly used four-way solenoid valve consist of fixed iron core, moving iron core, coil and other parts. The part of valve body consists of sliding valve core, valve body, sliding valve sleeve, spring base, etc. The working principle of four-way solenoid valve. When there is electricity flowing through the coil, excitation will be generated, and the iron core will be fixed to absorb the moving iron core. The moving iron core will drive the sliding valve core and compress the spring, which changes the position of the sliding valve core and thus changes the direction of the fluid. When the coil loses power, the sliding valve core is pushed by the spring's elasticity, and the iron core is pushed back to make the fluid flow in the original direction. This kind of sole...

Effective energy analysis is an important analytical method for energy systems. Liquid air separation plant is a low-temperature liquid mixture with methane as the main component, including nitrogen, ethane, propane and other components, which has a large temperature difference and pressure with the outside world. Liquid air separation plants's temperature accompanied by phase change heat, so its cold energy is divided into sensible heat and latent heat. The effective energy analysis shows that ...

In order to realize the separation of oxygen and nitrogen in the air separation plant, the first thing is to make the air liquefaction, which must try to reduce the air temperature to the liquefaction temperature. The absolute pressure of the lower tower of the air separation tower is about 0.6MPa. Under this pressure, the temperature at which the air begins to liquefaction is about-172 ℃. Therefore, in order to make the air liquefaction, there must be a cold fluid with lower temperature to cool the air. As we know, the air separation plant is cooled by the inflated low temperature air. If the Air wants to expand, it needs to be compressed first, and the compression needs to consume energy. Air expansion can be through throttling expansion or expansion machine expansion. However, the temperature drop of this kind of expansion is limited. For high pressure air of 20MPa ℃ and 30℃, the temperature drop is only 32℃ when throttling to 0.1MPa. In the turbine expander, the maximum temperat...