Chemical Industry

In pressure swing adsorption (PSA) decarbonization and hydrogen production processes, dry screw vacuum pumps have become the core driving force in the regeneration section of modern gas separation units, thanks to their exceptional efficiency and cleanliness. By establishing a stable, high-vacuum desorption environment, they ensure the complete removal of impurity gases from the adsorbent, significantly improving hydrogen product purity and recovery rate. Their oil-free dry operation not only avoids process media contamination and wastewater generation but also, with their excellent variable frequency control capabilities, flexibly adapts to the changing cyclic load of the PSA process. This results in significant energy savings and reduced consumption, while providing reliable assurance for long-term, low-maintenance operation of the unit, representing a key equipment direction for the current development of PSA technology towards high efficiency, environmental friendliness, and intelligence.

In the compression and transportation of process gases, dry screw vacuum pumps have become a key technology for handling complex industrial gases due to their oil-free, clean operation and excellent media adaptability. For explosive gases such as hydrogen and acetylene, they eliminate risks through inert gas sealing and explosion-proof design; for highly corrosive media such as chlorine and hydrogen sulfide, special coatings and a rigorous drying system ensure safe operation; and when transporting easily condensable organic vapors such as benzene and acetone, their precise temperature control effectively prevents condensation. With its highly modular configuration, this pump type balances safety, purity, and reliability, making it a core equipment choice for gas handling in modern high-end chemical, pharmaceutical, and electronics industries.

Multi-effect evaporators or MVR evaporators, used for the distillation, concentration, and drying of heat-sensitive materials under vacuum conditions, lower the boiling point of the liquid, thus reducing energy consumption and ensuring product quality.

Dry screw vacuum pumps are a core component of modern solvent recovery processes. By providing a clean, stable, and efficient vacuum environment, they completely address the drawbacks of traditional recovery methods, such as solvent contamination of the working medium, the generation of secondary wastewater, and high energy consumption. Their completely oil-free dry operation ensures extremely high purity of the recovered solvent, while efficient mechanical design and intelligent system integration (such as utilizing high exhaust temperatures to optimize subsequent condensation) significantly improve recovery rates and reduce overall operating costs, making them a key technological pillar for achieving green, economical, and sustainable production.

In industries such as potash fertilizer, citric acid, and desulfurization, vacuum pumps are used in conjunction with rotary drum or belt filters for the dehydration of materials or reactants. This enables large-scale continuous production, significantly reduces labor intensity, and maximizes product yield.