It removes C3+ and C5+ heavy hydrocarbons as well as aromatic components from natural gas to prevent freeze blockage caused by heavy hydrocarbon solidification under low temperature inside the cold box. Light hydrocarbon by-products can also be recovered to ensure the component specification of LNG products.
Working Principle
Low-temperature rectification and separation process. Heavy hydrocarbons condense and separate inside the column. Liquid-phase heavy hydrocarbons are sent out for recovery, while clean natural gas with heavy hydrocarbons removed from the column overhead is fed into the liquefaction cold box.
Core Advantages
✅ Efficient heavy hydrocarbon separation to eliminate the risk of cold box freeze blockage
✅ Recoverable C3/C4 light hydrocarbons to improve project revenue
✅ Skid-mounted integration combining heat exchangers and separators
✅ Automatic temperature and liquid level control for stable operation
Technical Parameters
Removed Components: C5+ heavy hydrocarbons, aromatics
Outlet heavy hydrocarbon content meets liquefaction requirements
Applications
Pre-treatment for liquefaction of wellhead gas, associated gas and coalbed methane
