About SEPARATION
A technology company focused on severe-service filtration. We combine materials science, structural design and process control to deliver filtration systems built for long-term, stable operation.
Three decades in filtration, focused on the demanding duties
Changzhou Separation Technology Co., Ltd. is a technology company dedicated to severe-service filtration. With more than 30 years of research and field experience, we develop filtration system technology and equipment for demanding process conditions.
Our engineering capabilities include advanced ceramic media sintering, high-temperature filtration system design, process optimisation, filtration system sizing, control software and related high-precision separation technologies. To date the team has designed more than 3,000 filtration systems installed in multiple countries.
“We do not simply supply a filter. We take responsibility for the continuity, stability and economics of the entire process.”
SEPARATION · ENGINEERING PRINCIPLE
Three things that keep us improving
Innovate, then iterate again
Continuous advances in materials and structure keep redefining what a filtration system can do under severe service.
Own the technology at home
Build independent high-end filtration capability and remove reliance on imported technology and supply chains.
Create value for the customer
We measure technology by process results: longer life, a smaller footprint and steadier operation.
Four engineering advantages you can verify
Every claim below comes from long-term operation in real plants, not a single laboratory metric.
Higher packing density
Each wall-flow element provides a matrix of parallel filtration channels. Compared with the surface filtration of conventional candle elements, it delivers 8–10× more area per unit volume. At high gas flow rates the system is more compact, occupies less space and needs simpler peripheral piping.
Longer element life
A protective metal frame directs dust-laden gas through a cyclonic inlet instead of letting it impinge directly on the element. This avoids the erosion and fracture typical of candle filters, protects process continuity and more than doubles element service life.
More stable operation
Automated control sequences deliver continuous online filtration and pulse cleaning. This patented back-blowing technology has been applied in more than a thousand systems and, paired with high-precision wall-flow SiC elements, supports long campaigns without shutdown.
A credible technology lineage
Our high-precision wall-flow system was developed iteratively from first-generation imported metal candle systems and second-generation imported ceramic candle systems. The R&D team includes senior Chinese and German filtration specialists with over 30 years of combined experience.
Sustained R&D, a growing patent portfolio
33 published patents cover SiC ceramic material preparation, high-temperature dust-laden gas filtration devices, online back-blowing processes and inspection equipment — a protection chain that runs from material to system.
Representative published patents
Publication numbers can be verified with CNIPA| Publication no. | Patent title | Type | Publication date |
|---|---|---|---|
| CN224777660U | High-temperature gas filter with condensation prevention | Utility model | 2026-09-22 |
| CN224772274U | Multi-dimensional ceramic inspection apparatus | Utility model | 2026-09-18 |
| CN310172045S | Filter for electrode-material coating equipment | Design | 2026-08-25 |
| CN122441280A | Anomaly diagnosis method and system for ceramic membrane modules in nuclear-grade high-temperature dust-laden service | Invention | 2026-07-24 |
| CN224404695U | High-temperature gas filter with facilitated dust discharge | Utility model | 2026-06-26 |
| CN310055030S | Filter element | Design | 2026-06-26 |
| CN122212809A | Modified SiC ceramic filter brick with high-temperature and acid-corrosion resistance, and its preparation | Invention | 2026-06-16 |
| CN122209177A | Porous-SiC high-temperature gas-solid separator for gas turbine inlet | Invention | 2026-06-16 |
| CN121974722A | SiC porous ceramic with in-situ induced low-temperature eutectic, and its preparation | Invention | 2026-05-05 |
| CN121535833A | Shaping apparatus and method for extruded ceramic membranes | Invention | 2026-02-17 |
| CN121449074A | Cold hydrogenation process with in-line filtration and pulse back-blowing | Invention | 2026-02-03 |
| CN220900352U | Catalyst remover and MTO product-gas / catalyst separation system | Utility model | 2024-05-07 |
Source: AiQicha / Qichacha public patent databases (updated 27 Oct 2026). The entries above are a selection. Legal status and ownership are as recorded by the China National Intellectual Property Administration; this page does not constitute a claim of ownership.
Changzhou manufacturing · Beijing commercial office
R&D and manufacturing base
Building 7, Zhongxin Zhidi (Changzhou) Smart Manufacturing Park
199 Wuyi South Road, Wujin National Hi-Tech Industrial Development Zone, Changzhou, Jiangsu, China
Lize SOHO
Lize SOHO, Fengtai District, Beijing. Located in the core of the Lize Financial Business District, directly above Lize Shangwuqu station on metro lines 14 and 16.
Want to go deeper into the technology?
See the wall-flow element structure, the system workflow and the engineering comparison behind it.