How to separate hydrogen and carbon monoxide in industry, please consult technology and equipment.

Pressurized liquefied carbon monoxide is-19O℃; The liquefaction temperature of hydrogen is -253℃, which makes carbon monoxide liquefied, while hydrogen is still gaseous. This is the best way to separate hydrogen and carbon monoxide.

Or pressure swing adsorption (PSA). Pressure swing adsorption is a new gas adsorption separation technology, which has the following advantages: (1) The product purity is high. ⑵ Generally, it can work at normal temperature and low pressure, and bed regeneration does not need heating, which is energy-saving and economical. (3) simple equipment, simple operation and maintenance. (4) Continuous cycle operation can be fully automated.

Therefore, as soon as this new technology came out, it attracted the attention of industrial circles in various countries, competing for development and research, developing rapidly and maturing day by day. Skarstrom filed a PSA patent in 1960. He used 5A zeolite molecular sieve as adsorbent, and used two-bed PSA device to separate oxygen-enriched air. The process was improved in 1960s and put into industrial production. In 1970s, the industrial application of pressure swing adsorption technology made a breakthrough, which was mainly used in oxygen-nitrogen separation, air drying and purification and hydrogen purification. Among them, the technical progress of oxygen-nitrogen separation is to combine a new adsorbent, carbon molecular sieve, with pressure swing adsorption to separate O2 and N2 in the air, thus obtaining nitrogen. With the improvement of molecular sieve performance and quality, and the continuous improvement of pressure swing adsorption process, the purity and recovery rate of products are continuously improved, which further promotes the economic foothold and industrialization of pressure swing adsorption. Principle: For the same adsorbed gas (adsorbate), under the condition of adsorption equilibrium, the lower the temperature and the higher the pressure, the greater the adsorption capacity. Conversely, the higher the temperature, the lower the pressure and the smaller the adsorption capacity. Therefore, the adsorption separation method of gas usually adopts two circulation processes, namely temperature-changing adsorption or pressure-changing adsorption, and the two circulation processes are shown in figure 1. If the pressure is constant, adsorption at room temperature or low temperature and desorption at high temperature are called temperature swing adsorption (TSA). Obviously, adsorption and desorption are carried out by changing the temperature. The temperature-changing adsorption operation is carried out at the vertical line between the low temperature (normal temperature) adsorption isotherm and the high temperature adsorption isotherm (see figure 1). Because adsorbents have large specific heat capacity, low thermal conductivity (thermal conductivity), long heating and cooling time and troublesome operation, variable temperature adsorption is mainly used for gas purification with few adsorbents. If the temperature is constant, pressure adsorption and decompression (vacuumizing) or atmospheric desorption are called pressure swing adsorption. It can be seen that pressure swing adsorption is adsorption and desorption by changing pressure. Pressure swing adsorption operation can be regarded as an isothermal process, because the thermal conductivity of adsorbent is very small, and the bed temperature of adsorbent changes little due to adsorption heat and desorption heat. Its working conditions are approximately along the adsorption isotherm at room temperature (see figure 1), with adsorption at higher pressure (P2) and desorption at lower pressure (P 1). Since pressure swing adsorption follows the adsorption isotherm, the slope of adsorption isotherm has great influence on it from the point of view of static adsorption equilibrium. Under the condition of constant temperature, the relationship between pressure and adsorption capacity is shown in the figure, in which PH stands for adsorption pressure and PL stands for desorption (after decompression) pressure. At this time, the difference between the adsorption capacity of PH and PL is actually the effective adsorption capacity, which is expressed by ve. Obviously, the effective adsorption capacity of linear adsorption isotherm is larger than that of curve adsorption isotherm (Langmuir type). Adsorption is usually carried out under pressure. Pressure swing adsorption (PSA) puts forward a method of combining pressure and pressure reduction, which is usually an adsorption-desorption system composed of pressure adsorption and pressure reduction. Under isothermal conditions, the cycle of adsorption operation is composed of pressurized adsorption and depressurized desorption. The adsorption capacity of adsorbents increases with the increase of pressure and decreases with the decrease of pressure. At the same time, in the process of decompression (reducing to normal pressure or vacuumizing), the adsorbed gas is released to regenerate the adsorbent, which can be regenerated without external heating. Therefore, pressure swing adsorption is also called isothermal adsorption and athermal regeneration adsorption.