Why is there only one argon enrichment zone in the new single column process instead of two argon enrichment zones as in the upper column of the double column process?
Although the new single column process is very similar to the double column process, there are also significant differences. First of all, in the new single column process, after expansion refrigeration, all the air enters the rectification column from the middle of the rectification column to participate in the rectification, while only about 15% of the air in the double column process enters the middle of the upper column to participate in the rectification, Secondly, in the new single column process, only liquid nitrogen is used as the reflux liquid, and there is no oxygen enriched liquid empty.
All the air in the new single column process enters from the middle of the distillation column, and its argon content is 1. At the same time, the air separation column in the new single column process is a nitrogen oxygen argon distillation column. Even if the argon content of the rising gas is high, the argon content of the mixed gas can not reach 2%, and the air above the air inlet enters the distillation section. Under the condition of argon extraction, the argon content in the distillation section can only decrease continuously, of course, it is impossible to form another argon enrichment area.
DEAR Air Separation is committed to scientific and technological innovation, always taking technology as the guide and quality as the basis, striving to create greater value for our customers and promote the healthy development of the industry. The company has three research centers and invests a lot of R & D funds every year. Continuous high-intensity R & D investment has become one of the driving forces for the rapid and steady growth of DEAR Air Separation's business performance.
DEAR Air Separation has 20 years of air separation equipment manufacturing experience and nearly 10 years of air separation equipment operation and maintenance experience, and has accumulated mature and perfect air separation equipment overall operation and maintenance standard process.
