Purification equipment

Deere air separation has been deeply engaged in the air separation industry for many years. It has complete qualifications for the design, manufacture, installation and commissioning of complete sets of air separation equipment, and has a number of independent patent technologies. It has landed more than 400 large and medium-sized air separation projects, serving customers in metallurgy, chemical industry, energy and other industries, and has rich practical experience in the project. It has achieved the performance of extracting oxygen, nitrogen, argon, helium, neon, krypton and xenon all gas. At the same time, it has implemented the self-developed lan'an intelligent operation and maintenance system to fully verify the landing ability of large-scale fully extracted air separation and digital intelligence equipment. Relying on the accumulation of a large number of mature projects that have been put into operation, Deere air separation can fully learn from the experience of similar worki

I. Preface With the rapid development of industry, nitrogen has been widely used in chemical engineering, electronics, metallurgy, food, machinery and other fields. The demand for nitrogen in our country increases at a speed of more than 8% every year. The chemical property of nitrogen is not active, and it shows great inertia under normal conditions, so it is not easy to react with other substances. Therefore, nitrogen is widely used as protective gas and sealing gas in metallurgical industry, electronic industry and chemical industry. Generally, the purity of protective gas is required to be 99.99%, and some require high purity nitrogen of more than 99.998%. Liquid nitrogen is a relatively convenient cold source, which is more and more widely used in food industry, medical service and the seminal storage of animal husbandry. During the production of synthetic ammonia in the chemical fertilizer industry, if the mixture of hydrogen and nitrogen, the feed gas of synthetic ammonia, is...