Knowledge

Molecular sieve is much more than a conventional drying agent. Its uniform pore structure, high internal surface area, strong adsorption capacity, and molecular selectivity make it

in many cases, an Air Separation Unit (ASU) designed primarily for gaseous products can also produce a certain amount of liquid oxygen (LOX) or liquid nitrogen (LIN).

Argon is a noble gas that is widely used in industry. It is highly inert and is neither flammable nor supportive of combustion. In the aircraft manufacturing, shipbuilding, nuclear

Because krypton and xenon are present in the atmosphere in extremely minute quantities — with volume fractions of approximately 1 × 10⁻⁶ for krypton and 0.08 × 10⁻⁶ for xenon — the

When a leak occurs inside the cold box of an air separation column, the refrigeration capacity available to maintain normal production becomes insufficient. Therefore, the primary

Typically, a large-scale air separation unit (ASU) requires more than 36 hours from initial cooling, liquid accumulation, purity adjustment to the production of on-specification pr

This is because during the startup phase, the temperature inside the air separation column is still far from the normal operating temperature (–172 to –194°C), and rectification re

Surge is a type of abnormal vibration that occurs in turbocompressors (also known as bladed compressors) when the flow rate is reduced to a certain extent. The centrifugal compress

The distribution of argon in the upper column is not fixed. When the purity of oxygen or nitrogen changes—that is, when operating conditions shift even slightly—the distribution of

The selection and design of the process flow have a decisive impact on the performance, energy consumption, product purity, and operational stability of the Air Separation Unit (AS

In addition to oxygen, nitrogen, and hydrogen, air contains trace amounts of rare gases such as neon, helium, krypton, and xenon. By volume fraction, neon accounts for approximatel

In addition to certain purity requirements for medical oxygen (99.5% oxygen purity for the cryogenic process), the moisture content must not exceed a dew point temperature of -43°C