Future prospects of cryogenic air separation technology

  Since 1956 China began to have an air separation equipment manufacturing industry, and constantly meet the growing demand for industrial gases from all walks of life, in view of the then poor technology and manufacturing capacity of gas separation equipment manufacturing products, many departments rely on imported equipment to develop the national economy, in the 1950s and 1960s China mainly imported ...

The lower the upper tower pressure, the more conducive to the separation of oxygen and nitrogen, and for the full low pressure air separation unit, the lower tower pressure will also be lowered as the upper tower pressure is reduced, and the lower tower pressure can reduce energy consumption. The pressure at the top of the upper tower depends on the resistance of the nitrogen piping in the heat exchange equipment and the resis...