Xinxiang Filter

Industry Pain Points

The energy, power, petroleum and chemical sectors operate under extreme working conditions including high temperature, high pressure, severe corrosion, heavy dust, flammable and explosive hazards.

Across the full natural gas industrial chain from wellhead extraction, long-distance pipeline transportation to distribution at city gate stations, gas flow carries contaminants such as liquid hydrocarbons, water mist, compressor lubricating oil mist, pipeline rust and welding slag. These pollutants cause scaling on compressor blades, inaccurate flowmeter readings and regulator sticking; in severe cases, they can damage hot gas path components of gas turbines.

In coal-fired power plants, turbine lubricating oil systems, DEH (Digital Electro-Hydraulic Control) servo valves and coal mill hydraulic loading systems demand ultra-high fluid cleanliness. The fitting clearance of servo valves is only 3–5 μm, and even tiny particles can result in spool jamming and control failure.

In petrochemical production, catalyst loss, tray blockage and heat exchanger fouling in core equipment such as hydrogenation reactors, fluid catalytic cracking units and ethylene cracking furnaces directly impair long-cycle stable plant operation. When alcohol amine droplets from amine desulfurization systems are carried to downstream sections, they corrode pipelines and contaminate finished products.

Solutions & Applications

1. Deep Purification for Full Natural Gas Industrial ChainCoalescer filter cartridges and separation filter cartridges are adopted to remove liquid hydrocarbons, water mist and solid particles from natural gas. They protect pipeline compressor units and guarantee stable combustion of gas turbines. Our products serve compressor stations, distribution stations, city gate stations and LNG receiving terminals.

2. Full-Process Protection for Gas TurbinesCylindrical and conical air intake filter cartridges together with gas filter cartridges supply clean intake air and fuel for gas turbines. They effectively slow compressor blade corrosion and degradation of hot gas path components while improving power generation efficiency.

3. Support for Power Plant Auxiliary Equipment and Lubrication SystemsHigh-precision hydraulic filter cartridges and lubricating oil filters are supplied for turbine oil systems, DEH electro-hydraulic servo systems, coal mill hydraulic loading systems and desulfurization systems. Combined with off-line circulating filtration and regular oil quality testing, oil cleanliness can be stably maintained at NAS Class 5–7 for long periods, greatly extending equipment overhaul cycles.

4. Precision Filtration for Petrochemical ProcessesWe deliver filtration solutions for oil refining, ethylene, chemical fertilizer and fine chemical plants, covering catalyst recovery filtration, overhead condensate purification, circulating filtration for amine desulfurization and high-temperature process gas dust removal. These solutions cut catalyst consumption, prolong plant operating cycles and reduce unplanned shutdowns.

Typical Application Scenarios

• Compressor stations, distribution stations, city gate stations, LNG receiving terminals and gas-fired power plants for long-distance natural gas pipelines

• DEH systems, coal mill hydraulic loading systems, desulfurization systems and turbine lube oil stations of coal-fired power stations

• Hydrocracking units, FCC energy recovery systems, ethylene cracking gas compressor units of refineries; synthetic ammonia units and methanol units of fertilizer plants