Xinxiang Filter

Industry Pain Points

The energy, power, petroleum and chemical industries operate under extreme working conditions featuring high temperature, high pressure, heavy corrosion, dense dust and flammable & explosive risks.Throughout the full industrial chain of natural gas, from wellhead extraction, long-distance pipeline transportation to distribution at city gate stations, contaminants carried in gas flow including liquid hydrocarbons, water mist, compressor lube oil mist, pipeline rust and welding slag will cause scaling on compressor blades, inaccurate flowmeter readings and regulator sticking. In severe cases, such contaminants may damage hot gas path components of gas turbines.

In coal-fired power plants, the turbine lube oil systems, DEH (Digital Electro-Hydraulic) servo valves and coal mill hydraulic loading systems impose extremely strict requirements on fluid cleanliness. The fitting clearance of servo valves is merely 3–5 μm, and tiny particles can trigger spool sticking and control failure.

In petrochemical production, catalyst loss, tray clogging and heat exchanger fouling in core equipment such as hydrogenation reactors, fluid catalytic cracking units and ethylene cracking furnaces directly undermine long-cycle stable operation of plants. If amine droplets from amine desulfurization systems flow into downstream sections, they will 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 are widely applied in compressor stations, off-take stations, city gate stations and LNG receiving terminals.

2. Full-Loop Protection for Gas TurbinesCylindrical and conical air intake filter cartridges plus gas filter cartridges are equipped to supply clean intake air and fuel for gas turbines. They effectively slow down compressor blade corrosion and degradation of hot gas path components, and improve power generation efficiency.

3. Protection for Power Plant Auxiliary Equipment & Lubrication SystemsHigh-precision hydraulic filter cartridges and lube 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 bypass filtration and regular oil testing, the oil cleanliness can be steadily maintained at NAS Class 5–7, greatly extending equipment overhaul intervals.

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

Typical Application Scenarios

• Natural gas long-distance pipeline compressor stations, off-take stations, city gate stations, LNG receiving terminals and gas-fired power plants

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

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